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80C196Mx Demo Board User`s Manual

1. Component Label Component Name JP1 8 pin Expansion JP2 Power Supply Connector JP3 26 pin I O Expansion JP4 40 pin I O Expansion JP5 26 pin I O Expansion U1 MAX233 U2 28 32 pin JEDEC SRAM U3 74HC373 U4 84 pin PLCC N87C196MH U5 16C550 U6 74HC14 U7 74HC14 U8 74HC240 09 1 8432 MHz Canned Oscillator Y1 16 MHz Canned Oscillator P1 Host Serial Port S1 Board Reset Switch DP1 LED Bank Resistor Pack RP2 SIP Resistor Pack RP3 SIP Resistor Pack COMPONENTS JUMPERS AND CONNECTORS A 2 ONG SOA L d VSN NI3QVIN Q8 ONO XIN96I 26618 13539 ei e ov 66 on VON z Sar 8 8 a m 9 g E 3 E v3 9 V H LAIMSNE 9 24 Ged ved 2 024 SLY viv 21 01 6v 8v et AQV3H 4M 15 LAW Elei Sav 1481 Gei Eau lav ody 99 sn en 1 AND 80 196 Serial Port A5434 01 Figure A 1 80C196Mx Demo Board Diagram intel COMPONENTS JUMPERS AND CONNECTORS A 2 JUMPER DEFINITIONS Table A 2 lists the definitions for jumpers on the 80C196Mx Demo Board Table A 2 Jumper Definitions Jumper Label Pin Number Jumper Options E1 U2 Pin 1 A B VCC B C A14 E2 U7 Pin2 A B
2. JJ I 19998 20 61 01 L661 PIN TT aa HH HIS NII 96XW XW9I6I LNAITOVO on 1 aonou moya USISIP sty N I Ia ayy ur seodde song Aue 107 Agtsuodsar ou satunsse payuy g 1000 a o1 srp seq 91 nou ON OMG ON WS eas OINHG XIN96I 97758 Zy Patel AL 0005 suonnpos 1001 yuouidopoaaq DAS m uone1odio pou E 62 qnot anro ami XIN9610X8 418 AO 114 9 914 08 SE Cid 6L ld 8L SN eld tL IL Vid 19 6EIDHFL cc 22 fos L 9 E SIV y vIV vin zo Jr A1501 Al4 6 13 8 12 1 All 9 10 A9 p A8 E SIWVA PSOLAVA Erd Tsd 0 POIL Usd 054 GOVT Si SIN SIV 0041 EIN T Lc tiv SI lt NE 1 9 CN LT ELEIHFL I c DIN 61 lc DIN I 6v 0 LASHA 18 pec DEI 10 6c lt TV 0 EE bl 9 lt S FLINT odv TE 8 11 5100 oo
3. 5 12 Supported Data Types oic eb dece ed n Ed cere 5 13 BYTE WORD DWORD and REAL Command Noiatons en 5 14 Stack Command Notations and Descriptions esesesseeressssieerirerrirrriresrirerierrrissrrnnes 5 15 Register Variable Notations and 5 16 SLA Command Notations and Descriptions 5 17 Disassembler Command Notations and Descriptions sssseseeeseeriesrereerrerrrrerrnsnes 5 18 516 5 6 1 RISM Command 6 3 de Da DR en oret Hc 1 Jumper n erahnen 3 Memory 3 Processor Type Selection A 4 8 VO Expansion Connector 5 26 pin I O Expansion 3 5 40 pin I O Expansion Connector JP4 6 26 pin I O Expansion Connector 7 External Memory 10 EE B 1 intel Guide to This Manual intel CHAPTER 1 GUIDE TO THIS MANUAL This manual describes the use of the 80C196Mx Demo Board kit for developing and evaluating an embedded application design based on the 80C 196 MCS 96 microcontroller This ma
4. EE re ERR RERBA A 8 Ap 25 PIN TO 9 PIN RS 232 A 9 A 7 EXTERNAL MEMORY 10 APPENDIX PARTSLIST er intel Figure 3 1 A 1 2 A 3 A 4 FIGURES Page Component level Diagram of the 80C196Mx Demo 3 2 80C196Mx Demo Board Diagram A 2 Power Supply Connector 2 A 4 LED Bank DPA momenti A 8 Serial Interface 2 4 een EE A 9 intel TABLES Table 3 1 3 2 5 1 5 2 5 3 5 5 5 6 5 8 5 9 5 10 5 11 5 12 5 13 5 14 5 15 6 2 A 1 A 3 A 4 A 5 A 6 A 7 A 8 A 9 TABLES Page Memory Gonflg tratlori 2 era b Ce endo 3 4 Processor Type Selection 4 0 3 5 ECM96Mx Command 5 1 DOS Command Notation sess eene 5 2 Commands for Invoking and Terminating 9 5 3 General ECM96Mx Commande 5 4 96 Commands that Operate on Object Files 5 5 Include Log and List Commande eren Breakpoint Command Notations and Go and Halt Command Notations and Descriptions STEP and SUPER STEP Command Notation and Description
5. lt Enter gt Terminates the command Esc Displays the next sequential breakpoint Enter an address value to set the breakpoint or press Esc again to display the next breakpoint the command wraps around from the last breakpoint 15 to the first breakpoint 0 The square brackets indicate an optional argument 5 6 3 Program Execution Commands The GO command and its options allow you to start and stop execution at specified addresses You can execute this command only if the application code is stopped In addition a HALT com mand allows you to stop execution when the application code is running 5 9 ECM96MX COMMANDS GO commands that set breakpoints use BPO and Any break value already one of these breakpoints is overwritten by the GO commands As discussed in Breakpoint Operation on page 5 8 program execution stops just before execution of the instruction at the breakpoint address ECM96Mx then temporarily deactivates that breakpoint when execution resumes so the instruction can be executed and finally reactivates the breakpoint However if execution stops at a breakpoint and no other breakpoint 15 set the breakpoint is permanently deactivated and you intel must use the HALT command to stop the application program Table 5 8 lists the GO and HALT commands notations and descriptions Table 5 8 Go and Halt Command Notations and Descriptions Com
6. AP 125 Designing Microcontroller Systems Order Number 210313 for Electrically Noisy Environments 445 8XC196KR Peripherals A User s Point of View Order Number 270873 AP 449 A Comparison of the Event Processor Array EPA Order Number 270968 and High Speed Input Output HSIO Unit 1 3 3 World Wide Web We offer a variety of information on the World Wide Web Use the following URLs to find in formation on our web site http developer intel com design mcs96 http www intel com GUIDE TO THIS MANUAL intel 1 3 4 FaxBack Service FaxBack is an on demand publishing system that sends documents to your fax machine You can get product announcements change notifications product literature device characteristics de sign recommendations and quality and reliability information from FaxBack 24 hours a day 7 days a week 1 800 628 2283 U S and Canada 916 356 3105 U S Canada Japan APac 44 0 1793 496646 Europe Think of the FaxBack service as a library of technical documents that you can access with your phone Just dial the telephone number and respond to the system prompts After you select a doc ument the system sends a copy to your fax machine Each document is assigned an order number and is listed in a subject catalog The first time you use FaxBack you should order the appropriate subject catalogs to get a complete listing of doc ument order numbers Catalogs are updated twice monthly so call for the la
7. OINHG XIN96T 92268 ZV PAE AX 0006 suonnjog 01 DAS IR uonerodio pou DEI SNOLLVDOT dIHO LV dV2 ONINIVWEY HOV Id LV 69 4 1 e aon aro Fig aT aT aT aT aT a T 5 92 DS 12 1 12 I 2 019 82 I 12 I posn jou 1 GIN Lid 920914 2 Cid 92502 A ld Ie U tld A HIN UO Sid 6l 02214 8 4 lt lt 9c vid HIN US ON Vid Ll 81114 Ez TC tid IX SI 9I Ud GIN Uo Zd 4 1 XIGXL L9d l FI cod Uc Vid 99d it de D 81014 1 0 6 Heen E SC TAN L 8777094 A BI FI 90d INLLXH 9777194 p n Zi cOd HWUON INOW 8 t 094 A 6 OI Fod T i L S cod 9 Tod t Y rod T T 00d 9904 x 1 Eo E EL Ltd THLIGIASIS Sv lt lt Ted AO Id um Std Std 67 Ot HHH red Le SL Erd 794 FINE St 92 Esd Ted Tsd ost A Tod Ted i Zt ISNI on or T 994 Vid Oc 54 a OFCOHFL ud S NEE dn Di 9I 9td 9dv 418 wyo 081 gt YI Sav Till SC 6 Zi bed oO 8 L OI ttd tdv 6 e 3 ST DIV 8 Ted 8 t D 9 Ltd L 3 9r 8V Y Qe DO 9 6i L asn Y a OFCOHFL E s ES 7 or T 1 144 zi 8 99 9 91 Y SI T ven 9 s 1
8. intel Introduction to the 80 196 Demo Board CHAPTER 3 INTRODUCTION TO THE 80C196MX DEMO BOARD This chapter describes the 80 196 demo board The board is designed as a basic demonstra tion system for evaluating hardware and software performance This chapter also includes a block diagram of the board and a diagram of the major components of the board with a brief description of each functional section 31 BLOCK AND COMPONENT DIAGRAMS OF THE BOARD The 80 196 demo board is shipped with an 80 196 device in the socket The 80 196 device can be replaced with 80C196MC an 80C196MD For configuring the board for the preferred device refer to the jumper settings section of this user manual The diagram illustrates the four main parts of the board the 80 196 microcontroller digital I O memory and the interface between the 80C196Mx and the host PC Following sections of this chapter describe these parts The memory section can accommodate SRAM and EPROM normal operation and programming As shipped the board has a 64 Kbyte SRAM 3 1 INTRODUCTION THE 80C196MX DEMO BOARD intel 6 VSN NIAGVN Q8 ONO XW96L Z661 8 v Te a SCH v93 Sd 3 AND 9 9 V PEPPER EEE 80C196MX v3 Serial Port 5434 01 Figure 3 1 Component level Diagram of the 80C196Mx Demo Board Figure 3 1 is acomponent level diagram of the demo board Details of
9. N 8 1 To access the BBS just dial the telephone number and respond to the system prompts During your first session the system asks you to register with the system operator by entering your name and location The system operator will set up your access account within 24 hours At that time you can access the files on the BBS NOTE If you encounter any difficulty accessing the high speed modem try the dedicated 2400 baud modem Use these modem settings 2400 N 8 1 1 3 5 1 How to Find MCS 96 Microcontroller Files on the BBS Application notes utilities and product literature are available from the BBS To access the files complete these steps 1 Enter F from the BBS Main menu The BBS displays the Intel Apps Files menu 2 Type L and press lt Enter gt The BBS displays the list of areas and prompts for the area number 3 Type 12 and press lt Enter gt to select MCS 96 Family The BBS displays a list of subject areas including general and product specific subjects 4 Type the number that corresponds to the subject of interest and press lt Enter gt to list the latest files 5 Type the file numbers to select the files you wish to download for example 1 6 for files 1 and 6 or 3 7 for files 3 4 5 6 and 7 and press lt Enter gt The BBS displays the approx imate time required to download the files you have selected and gives you the option to download them GUIDE TO THIS MANUAL intel 1 3 5 2 How to Find
10. Remove the N87C196MH microcontroller in socket U4 using an IC extractor 3 Set the jumpers to configure the board for the type of processor that you are using Table 3 2 Processor Type Selection E3 E4 Configuration For A B A B 196MC MH B C B C 196MD 4 Power up the board according to the instructions in Applying Power to the Demo Board on page 2 2 3 5 intel Introduction to the Embedded Controller Monitor iECM 4 INTRODUCTION TO THE EMBEDDED CONTROLLER MONITOR ECM This chapter introduces the Embedded Controller Monitor ECM user interface This is the in terface between the PC resident software and the evaluation board firmware The ECM software consists of two programs ecm96mx exe and mxr_main hex The commands for these programs are described in Chapter 5 ECM96Mx Commands and Chapter 6 RISM Registers and Com mands 4 1 EMBEDDED CONTROLLER MONITOR ECM ECM is the software interface between the host system and the user code running on the evalua tion board It provides basic debug capabilities including loading object files into system RAM examining and modifying variables and executing and stepping through code The 8xC196Mx evaluation board uses a version of the ECM written for the MCS 96 microcon trollers with extended addressing capability The ECM environment comprises two independent programs mxr_main hex and ecm96mx exe The mxr_main hex pr
11. 16C550 IC UART U5 13 2 30K SIP Res Pack RP1 RP2 14 2 30pF Cap C4 C5 15 1 74HC14 IC Logic U6 16 1 74HC139 IC Logic 07 17 1 74HC240 Logic 08 18 1 74HC373 Logic U3 19 2 100K Res R7 R8 20 1 180 Res R6 21 1 180 ohm SIP Res Pack RP3 22 1 7164 IC SRAM U2 23 2 CON26 JP3 JP5 24 1 CON40 JP4 25 1 DP9 Female 1 PARTSLIST Table B 1 Parts List Continued Item Qty Description Designators 26 HDSP 48XX LED Display DP1 27 MAX233 IC RS232 U1 28 Power Connector JP2 29 Reset Switch 51 30 4 STD JMPR E5 E6 E7 8 2 pin 31 TP TP1 intel Schematics 9 s D z 1 E arm L661 9I II y 5019 96XIANXIN9GINLNHITONO gonou moya Kur Aiprqrsuodsor ou a 1000 USISAP sey oN OMG ONISOM aus
12. ApBUILDER Software and Hypertext Documents on the BBS The latest ApBUILDER files and hypertext manuals and data sheets are available first from the BBS To access the files complete these steps Type F from the BBS Main menu The BBS displays the Intel Apps Files menu Type L and press lt Enter gt The BBS displays the list of areas and prompts for the area Type 25 and press lt Enter gt to select ApBUILDER Hypertext The BBS displays several options one for ApBUILDER software and the others for hypertext documents for Type 1 and press lt Enter gt to list the latest ApBUILDER files or type 2 and press lt Enter gt to list the hypertext manuals and datasheets for MCS 96 microcontrollers Type the file numbers to select the files you wish to download for example 1 6 for files 1 and 6 or 3 7 for files 3 4 5 6 and 7 and press lt Enter gt The BBS displays the approx imate time required to download the selected files and gives you the option to download 1 2 number 3 specific product families 4 5 them 1 44 TECHNICAL SUPPORT In the U S and Canada technical support representatives are available to answer your questions between 5 a m and 5 p m PST You can also fax your questions to us Please include your voice telephone number and indicate whether you prefer a response by phone or by fax Outside the U S and Canada please contact your local distributor 1 800 628 8686 U S and Canada 916 356 7599 U S and
13. Canada 916 356 6100 fax U S and Canada 15 PRODUCT LITERATURE You can order product literature from the following Intel literature centers 1 800 468 8118 U S and Canada 708 296 9333 U S from overseas 44 0 1793 431155 Europe U K 44 0 1793 421333 Germany 44 0 1793 421777 France 81 0 120 47 88 32 Japan fax only 1 8 intel Getting Started with the 80 196 Demo Board 2 GETTING STARTED WITH THE 80C196MX DEMO BOARD The 80C196Mx demo board kit contains hardware and software to enable you to write execute monitor and debug application software This chapter includes a list of the 80C196Mx demo board kit contents It previews the hardware and software design tools and it steps you through the procedures for initializing and running the demo board Following chapters describe the hard ware and software in more detail 21 DEMO BOARD KIT CONTENTS The 80C196Mx Demo Board kit includes the following items 80C196Mx Demo Board The 80 196 demo board ships with an 87 196 embedded microcontroller in an 84 lead PLCC package installed The N87C196MH features 32 KBytes of on chip One Time Programmable Read Only Memory OTPROM The kit also ships with an N87C196MC and an N87C196MD microcontroller The N87C196MC and N87C196MD support 16 Kbytes of on chip OTPROM The rismmx exe monitor code described below is preprogrammed in all of the microcontroller modules OTPROM The board also includ
14. NOTE To write to an OTPROM location Vpp must be at 12 5 VDC To write to an internal RAM location Vpp can be at either 5 0 or 12 5 VDC 08H WRITE_WORD Puts the low word of the DATA register into the memory address pointed to by the ADDR register and increments ADDR by two Memory Addr ADDR DATA 2217 2216 Before FF 22 16 2E 11 80 09 FF FF command After FF 22 18 2E 11 80 09 80 09 command NOTE To write to an OTPROM location must be at 12 5 VDC To write to an internal RAM location Vpp can be at either 5 0 or 12 5 VDC 09H WRITE_DOUBLE Stores the RISM_DATA register in the double word of memory pointed to by the RISM_ADDR register and increments the RISM_ADDR register by four to point at the next memory double word OAH LOAD_ADDRESS Puts the low word of the DATA register into the ADDR register ADDR DATA Before FF F1 05 22 16 command After FF 22 16 F1 05 22 16 command 6 4 intel RISM REGISTERS AND COMMANDS Value Command Description OBH INDIRECT _ADDRESS Puts the word from the memory address pointed to by the ADDR register into the ADDR register Memory Addr ADDR 2217 2216 Before FF 22 16 80 09 command After FF 80 09 80 09 command OCH READ_PSW Loads the RISM_DATA register with the PSW Program Status Word associate
15. an optional argument 522 DOS Command Rules When entering DOS commands follow these basic rules Table 5 2 includes examples of the rules parameters and keywords when using commands that affect specific addresses and files Use commas to separate parameters Table 5 2 DOS Command Notation Rules Example Command Line Notation and Descriptions Parameter Example string byte_address lt Enter gt Parameter byte_address used to specify a specific address Keyword Example go from code_address1 till code_address2 lt Enter gt Keyword till used to indicate a range In this example it indicates the range between the two parameters code_address1 and code_address2 Comma Example code_address count lt Enter gt Comma used to separate distinct parameters In this example it separates the parameters code_address and The square brackets indicate an optional argument 5 2 intel 96 COMMANDS 5 3 INITIALIZING AND TERMINATING ECM The commands discussed in Table 5 3 invoke and terminate ECM96Mx from DOS specify nu merical bases octal decimal or hexadecimal and temporarily exit to DOS Table 5 3 Commands for Invoking and Terminating ECM96Mx Command Names Command Notations and Descriptions1 2 ecm96mx Notation ecm96mx option1 option2 optionN lt Enter gt Description Loads and executes the ECM96Mx software Command
16. and the user interface that resides in the host system It is also compact and simple This serves two pur poses The RISM can reside in a user s system with minimal impact on available memory RISM is easy to port into the target s environment The RISM internal state structure is simple only three internal flags can change the way RISM deals with a character sent by the host DLE FLAG When this flag is set the next received character is assumed to be a data byte as opposed to a command byte RUN FLAG This flag is set when the target is running user code It can modify the operation of some RISM commands TRAP FLAG This flag is set when the user code has been halted because the 80C196Mx executed a TRAP instruction The TRAP FLAG is cleared when the RISM starts the execution of user code 6 3 RISM COMMAND DESCRIPTIONS Table 6 2 on page 6 3 details the operation of each command sent to the RISM 6 2 intel RISM REGISTERS AND COMMANDS Table 6 2 RISM Command Descriptions Value Command Description 00H SET_DLE_FLAG Sets the DLE flag in bit 0 of the MODE register to tell the RISM the next byte on the serial port is data that should be loaded into the DATA register The flag is cleared as soon as
17. bus 9 A11 VO Address Data lines for multiplexed address and data bus 10 AD3 VO Address Data lines for multiplexed address and data bus 11 A12 1 0 Address Data lines for multiplexed address and data bus 12 AD4 VO Address Data lines for multiplexed address and data bus 13 A13 1 0 Address Data lines for multiplexed address and data bus 14 AD5 VO Address Data lines for multiplexed address and data bus 15 A14 VO Address Data lines for multiplexed address and data bus 16 AD6 1 0 Address Data lines for multiplexed address and data bus 17 A15 VO Address Data lines for multiplexed address and data bus 18 AD7 1 0 Address Data lines for multiplexed address and data bus 19 P2 0 1 0 Bi directional standard port 20 ALE O Address Latch Enable output pin 21 P2 1 VO Bi directional standard port 22 INST O Instruction Fetch indicates instruction being fetched from external memory 23 P2 2 VO Bi directional standard port 24 WR O Write indicates external write occurring when active low 25 P2 3 1 0 Bi directional standard port 26 RD O Read asserted during external memory read 27 P2 4 1 0 Bi directional standard I O port 28 P5 4 1 0 Multiplexed with ONCE pin configure as output 29 2 5 1 0 Bi directional standard port 30 BHE O Byte High Enable indicates that valid data is being transferred over the upper half of the system address data bus intel COMPONENTS JUMPERS AND CONNECTORS Table 7 40 I O Expa
18. display the stack pointer with the SP command or the STACK command the displayed value is always offset by a value that compensates for the host interrupt overhead This makes storing the host interrupt related PC and PSW transparent at the evaluation board command level How ever you must allow for the extra stack space used when calculating total stack space require ments This transparency is convenient but potentially confusing if you display the stack pointer with the SP command and then either view or directly modify location 18H the internal register address of the stack pointer It is recommended that you do not directly modify the stack pointer with internal register address 18H CAUTION To avoid conflict with the evaluation board s stack operations modify the stack pointer only with the SP command or by executing application code Do not attempt to directly modify the stack pointer via register address 18H Specific implementations of the RISMMx may prevent you from overwriting register 18H and thereby force the use of the SP command Always use the SP or STACK command to manipulate the stack pointer intel 96 COMMANDS 5 8 ASSEMBLY AND DISASSEMBLY 96 supports examining and modifying code memory using the standard mnemonics for the MCS 96 assembler ASM96 Although standard mnemonics are used 96 does not build a symbol table of user symbols as assembly mnemonics are entered This limits the sof
19. lt Enter gt This restriction does not apply to the code adaress count lt Enter gt instruction During lengthy displays you can stop the output to the console by pressing lt Space gt and resume output by pressing lt Space gt again Press lt Enter gt to terminate the command dasm code_address lt Enter gt Disassembles the instruction at code_address The parameter code_address must be greater than or equal to 256T 100H so that the command parser can distinguish it from the dasm count lt Enter gt instruction dasm code_address count lt Enter gt Disassembles count instructions starting with the instruction at code_address During lengthy displays you can stop the output to the console by pressing lt Space gt and resume output by pressing lt Space gt again Press lt Enter gt to terminate the command dasm code_address to code_address lt Enter gt Disassembles the region of memory specified If an instruction crosses the ending address of the region it is completely disassembled before the command terminates During lengthy displays you can stop the output to the console by pressing lt Space gt and resume output by pressing lt Space gt again Press lt Enter gt to terminate the command t The square brackets indicate an optional argument 5 18 intel RISMMx Commands intel CHAPTER 6 RISM REGISTERS AND COMMANDS This chapte
20. options are described below You can enter string options in any order if the options are contradictory the system accepts the last option entered If ECM96Mx detects valid CTS Clear to Send and DSR Data Set Ready signals from the appropriate COM port it signs on and displays one of the following command prompts When the board is executing code it displays a greater than sign gt When the board is not executing code it displays an asterisk When CTS or DSR is not present ECM96Mx notifies you and asks if you want to proceed or exit If you proceed ECM96Mx may operate properly but your serial port or cabling may have a problem that will prevent proper operation com Notation com1 default com2 Description Specifies the serial communication port to be used for host interface The default is COM1 baud Notation baud 1200 2400 4800 9600 19200 38400 57600 115200 Description Specifies the host evaluation board communication rate Baud rates higher than 9600 baud may not be supported on 8088 based PCs A baud rate of 9600 baud can load 8 Kbytes of data in about 20 seconds A baud rate of 57600 can load 8 Kbytes of data in about 4 seconds notypes Notation notypes Description Causes the object file loader to ignore type definition records in the object module If it is invoked the I O routines recognize only basic data types such as BYTEs WORDs and LONGs More complex data types s
21. that address For long strings only the first 60 characters display When trailing characters are stripped decimal points are substituted for the first three characters stripped 5 7 4 Register Command Variables You can read microcontroller variables at any time but you can modify them only while the eval uation board program is stopped With these commands you can display and load the program counter PC program status word PSW window select register WSR and stack pointer SP Display is in the default base 5 15 ECM96MX COMMANDS intel Use the commands in Table 5 13 to access register variables associated with the microcontroller rather than with the program Table 5 13 Register Variable Notations and Descriptions Register Names Register Command Notations program counter Notations Enter pc byte address Enter program status word Notations e psw Enter psw word_value lt Enter gt window select register Notations 9 wsr lt Enter gt 9 wsr word value lt Enter gt stack pointer Notations e sp lt Enter gt sp word address Enter t The square brackets indicate an optional argument 5 7 5 Displaying and Modifying the Stack Pointer SP RISMMXx stores two words in the stack pointer area to retain the program counter PC and the program status word PSW during an ECM96Mx host interface interrupt For this reason when you
22. the byte is read 02H TRANSMIT Transmits the low byte of the DATA register to the serial port through the CHAR register shifts the DATA register right long by eight bits and increments ADDR by one ADDR DATA SBUF_TX Before FF 22 14 7A 2F 80 67 command After FF 22 15 00 7A 2F 80 67 command 04H READ_BYTE Puts the contents of the byte memory address pointed to by the ADDR register into the low byte of the DATA register Memory Addr ADDR DATA 2215 2214 Before FF 22 14 80 67 command After FF 22 14 67 80 67 command 05H READ_WORD Puts the contents of the word memory address pointed to by the ADDR register into the low byte of the DATA register Memory Addr ADDR DATA 2215 2214 Before 22 14 80 67 command After 22 14 80 67 80 67 command 06H READ_DOUBLE Reads the double word of memory pointed to the address register and places the results in the RISM_DATA register 6 3 RISM REGISTERS COMMANDS intel Value Command Description 07H WRITE_BYTE Puts the low byte of the DATA register into the memory address pointed to by the ADDR register and increments ADDR by one Memory Addr ADDR DATA 2217 2216 Before FF 22 16 2E 11 80 09 FF FF command After FF 22 17 2E 11 80 09 FF 09 command
23. the components are given in Appendix A Components Jumpers and Connectors and Appendix B Parts List 3 2 intel INTRODUCTION TO THE 80C196MX DEMO BOARD 3 2 THE 80C196MC MH MD MICROCONTROLLER 8xC196Mx controllers are 16 bit microcontrollers that are designed primarily to control three phase AC induction and DC brushless motors The 8xC196Mx microcontrollers are based on Intel s MCS 96 architecture and are manufactured on Intel s CHMOS process The N87C196MH features an enhanced three phase wave form generator specifically designed for use in inverter motor controller applications This peripheral provides pulse width modulation and three phase sine wave generation with minimal CPU intervention The N87C196MH also features two dedicated serial port peripherals allowing reduced software overhead Refer to the 8 196 8XC196MD 8 196 Microcontroller User s Manual order num ber 272181 for more information 3 3 HOST INTERFACE The host interface is a connection between the host PC serial port coml or com2 and the 80 196 serial I O port Figure 3 1 coml or com2 port connects to a 9 pin connector P1 on the board and then to the 80C196Mx serial I O port via RS 232 interface U1 and a UART U5 The RS 232 interface uses the non maskable interrupt NMI to signal the 80C196MXx that a character from the host is ready for reception 3 4 80 196 MEMORY SYSTEM The 80C196Mx dem
24. 6Mx flags erroneous inputs but remains in the SLA mode To terminate this mode type end lt Enter gt the only directive understood by the SLA asm lt Enter gt Functions like the asm code_address lt Enter gt command except that the APC is not initialized The first time the SLA is used APC is set to FF2080H Otherwise APC points to the byte following the last instruction generated by the SLA t The square brackets indicate an optional argument 5 17 ECM96MX COMMANDS 5 8 2 Disassembly Commands The disassembler converts binary object code in the evaluation board memory to ASM96 mne monics Use these commands for checking program patches or examining a portion of a program for which a listing is not available You can use these commands whether application code is run ning or stopped intel Table 5 15 lists the disassembler command s notations and descriptions Table 5 15 Disassembler Command Notations and Descriptions Command Notation Command Description dasm lt Enter gt Disassembles the instruction currently pointed to by the application s program counter APC dasm counf lt Enter gt Reads the current value of the application s program counter APC and disassembles count instructions beginning at that location The parameter count must be less than 256T 100H so the command parser can distinguish this command from the command dasm code_address
25. 80 196 Demo Board User s Manual March 1997 nformation this document is provided solely to enable use of Intel products Intel assumes no liability whatsoever including infringement of any patent or copyright for sale and use of Intel products except as provided in Intel s Terms and Conditions of Sale for such products ntel Corporation makes no warranty for the use of its products and assumes no responsibility for any errors which may appear in this document nor does it make a commitment to update the information contained herein ntel retains the right to make changes to these specifications at any time without notice Contact your local Intel sales office or your distributor to obtain the latest specifications before placing your product order MDS is an ordering code only and is not used as a product name or trademark of Intel Corporation ntel Corporation and Intel s FASTPATH are not affiliated with Kinetics a division of Excelan Inc or its FASTPATH trademark or products Other brands and names are the property of their respective owners Additional copies of this document or other Intel literature may be obtained from Intel Corporation Literature Sales P O Box 7641 Mt Prospect IL 60056 7641 or call 1 800 879 4683 INTEL CORPORATION 1997 intel CONTENTS CHAPTER 1 GUIDE TO THIS MANUAL 1 1 MANUAL CONTENTS norte na inneren 1 1 1 2 NOTATIONAL CONVENTIONS AND TERMINOLOGY 2 1 2 1 3 REL
26. ATED DOCUMENTS AND PRODUCTS esee 1 5 1 3 1 Data Sheet and User s Manual Supplement 1 5 L Application Notes iii A pte nee 1 5 1 3 3 World Wide E 2 een ee 1 5 1 3 4 e er e d iene 1 6 1 3 5 Bulletin Board System BBS 4 4 8 60 1 6 1 3 5 1 How to Find MCS 96 Microcontroller Files on the BBS 1 7 1 3 5 2 How to Find ApBUILDER Software and Hypertext Documents on the BBS 1 8 1 4 TECHNICAL SUPPORT ee rri deeg edd Tee 1 8 1 5 PRODUCT LITERATURE cito tend dete bee e 1 8 CHAPTER 2 GETTING STARTED WITH THE 80C196MX DEMO BOARD 2 1 DEMO BOARD KIT 2 1 2 2 APPLYING POWER TO THE DEMO BOARD 2 2 2 3 INVOKING THE EMBEDDED CONTROLLER MONITOR SOFTWARE AND THE DEM ONSTRATION PROGRAM 2 4 CHAPTER 3 INTRODUCTION TO THE 80C196MX DEMO BOARD 3 1 BLOCK AND COMPONENT DIAGRAMS OF THE 3 1 3 2 THE 80C196MC MH MD 3 3 3 3 HOSTINTERFACE e P hr des 3 3 3 4 80 196 MEMORY 5 5 eene enn 3 3 3 5 MEMORY MOBES x 5 iut ene 3 3 3 6 USING SRAM AND 3 3 3 6 1 Memory Con
27. EP Commands 96 has four STEP commands and four corresponding SUPER STEP commands Aside from the interrupt operation differences discussed earlier the STEP and SUPER STEP com mands behave the same way so they are described here together The command definition uses the phrase single step instead of STEP or SUPER STEP Table 5 9 lists the STEP and SUPER STEP command notations and descriptions Table 5 9 STEP and SUPER STEP Command Notation and Description Command Notations Command Descriptions step super step option1 option2 Enter Single steps your application code one instruction at a time step super step count Enter Single steps count times step super step from code adaress Enter Loads the application s PC with the value of code address and then single steps one time step super step from code address count Enter Loads the application s PC with the value of code address and then single steps counttimes t The square brackets indicate an optional argument 5 12 intel 96 COMMANDS 5 7 SUPPORTED DATA TYPES 96 provides commands to display and modify program variables including the follow ing data types BYTE CHAR WORD DWORD REAL STACK and STRING ECM96Mx commands allow you to display variables or to initialize them either individually or as regions of memory that contain variables of the given type 96 als
28. ORS AA 1 0 EXPANSION CONNECTORS JP1 JP3 5 The tables that follow describe the functions of I O expansion connectors JP1 and JP3 5 Table 5 8 pin I O Expansion Connector JP1 Pin No Function Name Type Description 1 AO 1 0 2 1 1 0 3 A2 VO 4 VO Address Lines 0 7 Address lines for de multiplexed 5 A4 Vo address bus 6 A5 1 0 7 6 1 0 8 A7 VO Table A 6 26 pin Expansion Connector JP3 Sheet 1 of 2 Pin No Function Name Type Description 1 VREF PWR Reference Voltage for the A D Converter 2 Analog inputs to the on chip converter 3 AGND GND Reference Ground for the A D Converter and Port 0 logic 4 Analog inputs to the on chip A D converter 5 VREF PWR Reference Voltage for the A D Converter 6 2 Analog inputs to the on chip converter 7 GND Reference Ground for the A D Converter and Port 0 logic 8 P0 3 Analog inputs to the on chip converter 9 VREF PWR Reference Voltage for the A D Converter 10 P0 4 Analog inputs to the on chip converter 11 AGND GND Reference Ground for the Converter and Port 0 logic 12 5 Analog inputs to the on chip converter 13 VREF PWR Reference Voltage for the A D Converter 14 6 Analog inputs to the on chip converter 15 AGND GND Reference Ground for the A D Converter and Por
29. P5 2 B C A14 E3 U4 P1 6 A B GND B C P1 6 E4 U4 P1 5 A B GND B C P1 5 E5 UARTINT A B UARTINT E6 GND A B GND E7 VREF A B VCC E8 ANGND A B AGND A 2 1 Memory Configuration Jumpers Table A 3 Memory Configuration E1 E2 Configuration For B C A B 64k and 256K RAM A B B C 256K EPROM Note that the board ships with 64K 8K x 8 bits or SRAM mapped at to BFFFH If 256K parts are installed the decoding scheme used limits access to only 128K at 8000H to BFFFH A 2 2 Analog Power Reference Configuration If no external analog power reference is used jumper E7 and E8 A 2 3 External Address Capability If you wish to boot the device from external memory not on the board remove US 3 COMPONENTS JUMPERS AND CONNECTORS intel A 2 4 Chip Dependent Jumpers Table A 4 Processor Type Selection E3 E4 Configuration For A B A B 196MC MH B C B C 196MD A 2 5 UART Interrupt If you are not using the on board UART and wish to use its memory range 0000H 1FFFH for an external device remove the jumper on ES A 3 POWER SUPPLY CONNECTOR JP2 The flag on the JP2 connector is oriented to the edge of the board Figure A 2 depicts the orien tation of the terminals with respect to the demo board Flag Vgg Ground Voc 5VDC 5447 01 Figure 2 Power Supply Connector JP2 A 4 intel COMPONENTS JUMPERS AND CONNECT
30. This manual provides you with the information needed to get up and running with the 80C196Mx demo board For available related documentation see Related Documents and Products on page 1 5 A set of demo board schematics is also provided in this manual 22 APPLYING POWER TO THE DEMO BOARD You must provide a 5 VDC power supply for the 80C196Mx demo board It must be a regulated supply comparable to the ELPAC model WM113 This and other models are available through DigiKey Corporation 2 2 intel GETTING STARTED WITH THE 80C196MX DEMO BOARD Use the following procedure to power up the board 1 2 Turn off power to the PC and the power supply Connect the serial port cable from the board s P1 connector to the or com serial port on your PC The board to PC connection is not used until the Embedded Controller Monitor ECM is invoked However the connection should be made before power is supplied to the board Figure 1 on page A 2 shows the location of the demo board s power ground and serial port connections Connect the power cable from the power supply to the JP2 connector on the 80C196Mx demo board WARNING A regulated 5 VDC power supply must be used Lower voltage might not operate the demo board Higher voltage might damage the demo board An unregulated power supply may cause unpredictable failure conditions Be sure that the plug from the power supply is oriented properly on the board If it is p
31. YPES cete Rr p a ER ERE REIR sts 5 13 5 7 1 BYTE WORD DWORD and REAL Commands 5 13 5 7 2 STACK Commands Ign nter i REPRE PER FREE IIa Gf 5 15 5 7 3 STRING Commande X 5 15 5 7 4 Register Command Variables eene 5 15 5 7 5 Displaying and Modifying the Stack Pointer SP 5 16 5 8 ASSEMBLY AND 5 nnnm 5 17 5 8 1 Single Line Assembler SLA Commands A 5 17 5 8 2 Disassembly Commands 5 18 CHAPTER 6 RISM REGISTERS AND COMMANDS 6 1 5 5 xr re E ROO ORC 6 1 6 2 RISM STRUCTURE nn rettet donned He 6 2 6 3 RISM COMMAND DESCRIPTIONS essem 6 2 APPENDIX A COMPONENTS JUMPERS AND CONNECTORS A 1 COMPONENTS A to E RI IR na Ee A 1 A2 JUMPER DEFINITIONS iiti deri ere een A 3 A 2 1 Memory Configuration Jumpers eem nennen nennen A 3 A 2 2 Analog Power Reference Configuration 2 A 3 A 2 3 External Address Capability mmn A 3 intel CONTENTS 2 4 Chip Dependent Jumpers 4 2 5 VART Interrupt sian idad anaes edet 4 POWER SUPPLY 4 VO EXPANSION CONNECTORS JP1 3 5 A 5 A 5 LED BANK DESCRIP TON S
32. akpoint array Notation go till code_address1 or code_address2 lt Enter gt Description Functions like the previous command except that it also sets the second default breakpoint BP1 to the value of code_address2 Notes 1 Enter all hexadecimal addresses with a leading zero no spaces e g Off1209h 2 The square brackets indicate an optional argument 5 10 intel 96 COMMANDS Table 5 8 Go and Halt Command Notations and Descriptions Command E Names Command Notations and 5 halt Notation halt Enter Description Stops program code execution by forcing the microcontroller to execute a jump to self instruction in a reserved location Notes 1 Enter all hexadecimal addresses with a leading zero and no spaces e g Off1209h 2 The square brackets indicate an optional argument 5 6 4 Program Sequence Control The ECM96MXx interface supports the instruction sequence commands necessary to single step your application code These commands are useful for testing and debugging short sections of code This section defines the commands and certain limitations presented by this type of pro gram flow control 5 6 4 1 STEP SUPER STEP Operation ECM96Mx provides STEP commands for executing code one instruction at a time SUPER STEP commands are similar except they treat subroutines and interrupt service routines ISRs as single instruct
33. amine the next variable by pressing lt Esc gt e Esc Allows you to examine the next variable You can then terminate the command lt Enter gt assign a value variable_value or examine the next variable lt Esc gt variable variable_address variable_value lt Enter gt Modify the value of a single variable variable variable variable address Examine the values of the variables in a Enter range of addresses In numerical form ECM96Mx displays an address followed by up to 16 bytes of memory as BYTE WORD DWORD or REAL values To stop the output press Space To resume the output press Space again To terminate the command press Enter variable variable 1 to variable address2 Initialize a region of memory to a given variable value Enter value At 9600 baud setting each value takes a little over one millisecond To terminate the command press Enter this leaves only a part of the memory region initialized word word 1 to word address2 Copy a block of memory from the second word address3to word_address4 lt Enter gt address range to the first address range This command applies to WORD variables only To terminate the command press Enter this leaves only a part of the memory region copied 1 Replace the variable with BYTE WORD DWORD or REAL e g word Off0080h O lt Enter gt 2 The square bracket
34. can override the default base during input by adding an override character to the end of the number The override characters octal t decimal and h hexadecimal You must add the override character immediately after the last digit of the number Do not include a space Program addresses are always displayed in hexadecimal and breakpoint numbers are always displayed in decimal quit Notation quit lt Enter gt Description Closes any file that ECM96Mx opened and exits to DOS You can use this command even if the evaluation board is running a program execution continues ECM96Mx sets the selected COM port to 9600 baud 8 data bits no parity and one stop bit and then returns to DOS The exit command also performs this duty The square brackets indicate an optional argument 5 4 intel 96 COMMANDS 5 5 FILE OPERATIONS This section describes the commands that ECM96Mx uses to load and save object code enter pre defined strings of commands log commands and record entire debug sessions including user en tries and the response generated by ECM96Mx on the host screen 5 51 Loading and Saving Object Code ECM96Mx accepts object files generated by Tasking formerly BSO development tools in the OMF96 version 3 0 format ECM96Mx does not accept files containing unresolved externals or files containing relocateable records Pass these files through the RL196 linker to resolve the ex terna
35. connector we recommend you buy a standard RS 232 25 pin to 9 pin conversion adapter or cable Figure A 4 on page A 9 shows you how to assemble a 25 pin to 9 pin serial port interface adapter cable for the correct connection to the 80 196 demo board To Host PC Shield Ground To Evaluation Board Note Signal mnemonics are referenced to the host A2343 02 Figure A 4 Serial Interface A 9 COMPONENTS JUMPERS AND CONNECTORS EXTERNAL MEMORY MAP Table A 9 shows the area in the external memory map that by default are allocated A 10 Table A 9 External Memory Map External Address Range Allocation C000H FFFFH Available Chips Select A000H BFFFH SRAM Standard 8000H 9FFFFH SRAM Expansion 2000H 7FFFH Unallocated 0000H 1FFFH UART at 1E00H intel intel Parts List APPENDIX PARTS LIST This appendix provides a list of all discrete and active components for the 80 196 demo board Table B 1 Parts List Item Qty Description Designators 1 0 1uF Cap C3 C6 C7 C8 C9 C10 C12 C13 C15 2 2 1 0uF Cap C2 C11 3 1 1 8432 MHz Crystal U9 4 2 1N4148 Diode D1 D2 5 4 3 Way Jumper 1 2 E4 3 pin 6 1 6 8 uF C1 7 1 8 Header JP1 8 1 8xC196Mx IC Microcontroller 04 9 5 10K Res 1 R2 4 R5 10 1 10uF Cap 14 11 1 16 0 MHz Crystal Y1 12 1
36. ct Address range COOOH FFFFH 16 7 0 1 0 EPA Capture Compare or standard l O pins 17 P7 4 1 0 EPA Capture Compare or standard l O pins 18 P7 1 1 0 EPA Capture Compare or standard l O pins 19 P7 5 1 0 EPA Capture Compare or standard l O pins 20 P7 2 1 0 EPA Capture Compare or standard l O pins 21 P7 6 1 0 EPA Capture Compare or standard l O pins 22 P7 3 1 0 EPA Capture Compare or standard l O pins 23 P7 7 1 0 EPA Capture Compare or standard l O pins COMPONENTS JUMPERS AND CONNECTORS intel Table 8 26 Expansion Connector JP5 Sheet 2 of 2 24 P1 5 Analog inputs to the on chip A D converter or standard input port 25 P1 7 Analog inputs to the on chip A D converter or standard input port 26 P1 6 Analog inputs to the on chip A D converter or standard input port A 5 LED BANK DESCRIPTIONS At power on and whenever the board is reset LEDs 1 through 8 turn on then off together see Figure A 3 Then they blink on in sequence continuously until the host PC sends a command to the board power is turned off or the board is reset LED 9 remains off during the entire power up sequence LEDs 1 through 8 can be programmed to display port 1 7 0 A 8 E 2 2 2 3 2 4 5449 01 Figure A 3 LED Bank DP1 intel COMPONENTS JUMPERS AND CONNECTORS A 6 25 PIN TO 9 PIN RS 232 INTERFACE If your computer has a 25 pin serial port
37. d with the 5 code Most RISM implementations must check RUN_FLAG to determine how to access the user s PSW WRITE_PSW Loads the PSW Program Status Word associated with the user s code from the RISM_DATA register The host software will only invoke this command while user code is not running READ_SP Loads the RISM_DATA register with the SP Stack Pointer associated with the user s code OFH WRITE_SP Loads the SP Stack Pointer from the RISM_DATA register This command also pushes two values into the newly created stack area These values are the PC first and PSW second associated with the idle loop which executes while user code is not running The host software will only invoke this command while user code is not running 10H READ_PC Loads the RISM_DATA register with the PC Program Counter associated with the user s code Most RISM implementations will have to check RUN_FLAG to determine how to access the user s PC 11H WRITE_PC Loads the PC Program Counter associated with the user s code from the RISM_DATA register The host software will only invoke this command while user code is not running 12H START_USER PUSHes the user PC PSW and WSR onto the stack and starts the application program from the location contained in the user PC The RISM PC PSW and WSR will also be in the stack so allow enough room on the stack for all six words You ca
38. eak messages interrupt command execution 5 8 intel 96 COMMANDS 5 6 2 2 Breakpoint Commands Breakpoint commands can display breakpoints while the application code is running or stopped The commands can activate breakpoints only while the application code is stopped Table 5 7 lists the breakpoint commands notations and descriptions NOTE When possible avoid using and with the breakpoint command GO command with the TILL option can implicitly set and and thereby overwrite the addresses entered with the breakpoint command Table 5 7 Breakpoint Command Notations and Descriptions Command Notations Command Descriptions br lt Enter gt Displays all active breakpoints i e 0 or informs you that no breakpoints are active br bp number code adaress Enter Sets the breakpoint specified by bp number to the value code_address For example to set breakpoint 3 to the address FF21A0H type br3 0ff21a0 lt Enter gt The BR command echoes this address as 21a0 you can also enter the address FF21A0 as 21a0 In this example to clear the breakpoint you would type br3 0 lt Enter gt br bo_number lt Enter gt Displays a breakpoint value and optionally changes the setting 96 displays the setting of the selected breakpoint and waits for input After typing or not typing a new value you can press lt Enter gt or lt Esc gt
39. ecording can begin again LOGON also stamps the list file with the current date and time from the system clock 5 6 PROGRAM CONTROL Commands in this group control program execution and allow you to reset the microcontroller set execution breakpoints start execution stop execution step and super step 5 6 1 80C196Mx Reset The following command resets the 80 196 without resetting the entire evaluation board reset Notation reset chip lt Enter gt Description Physically resets the microcontroller by writing OXXXX0001B to the RISM_DATA register It then issues a monitor_escape rism command which causes the evaluation board to execute a reset RST instruction 5 7 ECM96MX COMMANDS intel 5 6 2 Breakpoint Features You can use breakpoints to stop execution at specified addresses You may also use breakpoints to examine and or modify registers and memory before resuming execution NOTE When breakpoints are used to halt application code microcontroller timers and peripherals such as EPA serial ports and PWM may remain active 5 6 2 1 Breakpoint Operation 96 provides 16 program execution breakpoints BRO to BR15 and a set of commands to set or clear the breakpoints A command activates a breakpoint by assigning a specific address of an instruction where execution is to stop For example if br2 Off209dh lt enter gt execution halts at address FF209DH You must set the breakpoi
40. ed Controller Monitor ECM limits the usable RAM size to 32 Kbytes The following procedure is for installing memory devices on the board 1 Turn off power to the board 2 Insert the memory device in socket U2 3 Establish the jumper settings as shown in Table 3 1 Table 3 1 Memory Configuration 1 2 Configuration For B C A B 64k and 256K RAM A B B C 256K EPROM Note that the board ships with 64K 8K x 8 bits or SRAM mapped at to BFFFH If 256K parts are installed the decoding scheme used limits access to only 128K at 8000H to BFFFH 4 If no external analog power reference is used jumper E7 and E8 5 If you wish to boot the device from external memory not on the board jumper E6 6 If you are not using the on board UART and wish to use its memory range 0000H 1FFFH for an external device remove the jumper on E5 and remove ICUS 7 Power up the board according to the instructions in Applying Power to the Demo Board on page 2 2 8 To load the ECM96Mx software see Invoking the Embedded Controller Monitor Software and the Demonstration Program on page 2 4 3 4 intel INTRODUCTION TO THE 80C196MX DEMO BOARD 3 7 THE MICROCONTROLLER MODULE The demo board kit also includes an N87C196MC and an N87C196MD microcontroller To change the microcontroller module on the board 1 Use standard anti static precautions such as wearing a ground strap 2
41. ensitive 5 2 1 ECM96Mx Command Notation When entering ECM96Mx commands use the basic rules below Table 5 1 includes examples of the rules Use parameters and keywords when using commands that affect specific addresses and files e Use a comma as a Boolean OR For example this that is interpreted as this OR that Insert a hyphen immediately before the command when invoking ECM96Mx Table 5 1 ECM96Mx Command Notation Rules Example Command Line Notation and Descriptionst Parameter Example string byte_address lt Enter gt Parameter byte_address used to specify a specific address Keyword Example go from code_address1 till code_address2 lt Enter gt Keyword till used to indicate a range In this example it indicates the range between the two parameters codeaddress1 and codeaddress2 The square brackets indicate an optional argument 5 1 ECM96MX COMMANDS intel Table 5 1 ECM96Mx Command Notation Continued Rules Example Command Line Notation and Descriptionst Comma Example code_address count lt Enter gt Comma used to separate distinct parameters In this example it separates the parameters code_address and Hyphenation Example ecm96mx com1 default com2 lt Enter gt Mandatory item A hyphen must precede the first command Description only used to invoke 96 The square brackets indicate
42. es 64 KBytes of SRAM for user code downloaded using 96 The SRAM is resident a standard 32 pin JEDEC socket and can be jumpered for two memory sizes ranging from 64K 256K of SRAM or 256K of EPROM 2 1 GETTING STARTED WITH THE 80C196MX DEMO BOARD intel e 3 5 MS DOS Diskette A 3 5 MS DOS diskette contains software for running and debugging 80 196 programs from a host PC ecm96mx exe rismmx a96 rismmx lst rismmx obj rismmx hex 96 and RISMMx comprise the embedded controller monitor software ECM for running and debugging your 80C196Mx programs These programs are introduced in Chapter 4 and described in Chapters 5 and 6 mxdemo a96 mxdemo lst mxdemo obj MxDEMO is an 80C196Mx demonstration program It is a convenient vehicle for experimenting with 96 and RISMMx commands cstart a96 cstart obj CSTART maintains the chip select configuration required by the ECM software The object code file should be linked with user code that is loaded onto the 80C196Mx demo board hexobj exe HEXOBJ converts HEX hexadecimal formatted diskette files to Intel object module file formats OMFs which can then be loaded by ECM96Mx see Loading and Saving Object Code on page 5 5 80c196np inc This file contains variable and macro definitions for rismmx a96 The diskette file should be used when the 5 source code is modified and recompiled Technical Documentation
43. figurations and Installation 2 3 4 3 7 CHANGING THE MICROCONTROLLER MODULE eem 3 5 CHAPTER 4 INTRODUCTION TO THE EMBEDDED CONTROLLER MONITOR ECM 4 1 EMBEDDED CONTROLLER MONITOR 4 1 4 2 RESTRIGTIGONS 4 4 2 CONTENTS intel 5 ECM96MX COMMANDS 5 1 EGM DEFINED Ra TR 5 1 5 2 COMMAND LINE 5 1 5 2 1 ECM96Mx Command Notation 2 5 1 5 2 2 DOS Command RUES eei cioe edet inten serene te ede endend 5 2 5 3 INITIALIZING AND TERMINATING 5 8 5 4 GENERAL ECM96MX nennen 5 4 5 5 FIEE OPERATIONS i e ree eet A s 5 5 5 5 1 Loading and Saving Object Code AAA 5 5 5 5 2 Incl de Log andList FIleS ipt rrt tr bert 5 5 5 6 PROGRAM CONT ROL tense He Banana edad 5 7 5 6 1 80 196 siii ne FE re ERR NX Ee 5 7 5 6 2 Breakpoint Features ie ide ende 5 8 5 6 2 1 Breakpoint Operation 55 n em ttt tse etm PR ee HR ren 5 8 5 6 2 2 Breakpoint Commandes eese eee nemen nens 5 9 5 6 3 Program Execution Commands 2 5 9 5 6 4 Program Sequence Control 2 5 11 5 6 4 1 STEP SUPER STEP Operation 5 11 5 6 4 2 STEP and SUPER STEP Commands AA 5 12 5 7 SUPPORTED DATA T
44. iles to make them easier to understand A comment be gins with a semicolon and ends with an Enter or Esc character The semicolon is part of the comment The Enter or Esc character is not part of the comment ECM96MX COMMANDS intel When creating a log file keep in mind you can place characters in the file to help you transform the file into a list file You can use the list file to re create command sequences List files keep a running record of both the commands you enter and the responses ECM96Mx generates With the list file and log file commands you can either overwrite existing data in the file or ap pend data to the file By using default filenames you can gather list and log data in the default files and avoid having to create and manage a large number of separate files 96 appends the date and time to log files and list files whenever they are opened This information makes it easier for you to use a text editor to sort the data from the debug sessions The commands involved in include log and list operations are discussed in Table 5 6 Table 5 6 Include Log and List Commands Command Names Command Notations and Descriptions include Notation include filename lt Enter gt Description Attempts to open filename as a read only file If the file can be opened the command parser takes commands from that file These commands must contain the exact sequence of ASCII characters you would type
45. ions Between instructions you can use ECM96Mx commands to check the states of the variables changed by the instruction to ensure that the program is operating properly STEP commands allow a far more detailed view of program behavior The disadvantage is that STEP commands do not occur in real time This restriction makes it difficult or even impossible to use STEP commands with code that is dependent upon real time events In some situations STEP operations with enabled interrupt systems are confusing because inter rupt service routines are also sequenced one instruction at a time To avoid this problem 96 artificially locks out interrupts with the basic STEP command operation SUPER STEP is similar to STEP however SUPER STEP interrupts are not artificially sup pressed An interrupt service routine or a subroutine call and the body of the subroutine it calls is treated as one indivisible instruction by the SUPER STEP command This allows you to ignore the details of subroutines and interrupt service routines while you view code operation When an instruction uses SUPER STEP all service routines associated with enabled pending interrupts are executed This allows limited stepping through code while operation continues in a concurrent environment however the system does not operate in real time A better approach is to use the GO command to execute to a specified breakpoint and then STEP through the code 5 11 ECM96MX COMMANDS in
46. it uses the default filename LIST ECM 96 then stops recording new commands and responses 5 6 intel 96 COMMANDS Table 5 6 Include Log and List Commands Continued Command Names Command Notations and Descriptions liston Notation liston lt Enter gt Description Re opens the list file in the append mode so recording can start again It also stamps the list file with the current date and time from the system clock This stops new list information from being recorded log Notations log filename Enter e log Enter Description Attempts to open filename as a writable file If a file with filename already exists ECM96Mx asks if the file is to be overwritten or if the new data should be appended to the end of the file It then opens the file and stamps it with the current data and time After this the file records the commands you enter This file may contain nonprintable characters e g lt Esc gt If you do not enter a filename the log command uses the last filename entered as part of a log filename command If you have not entered any log filename commands it uses the default filename LOG ECM logoff Notation logoff lt Enter gt Description Closes a log file that has been specified by the log command 96 then stops recording new commands logon Notation logon lt Enter gt Description Re opens the list file in the append mode so r
47. ive of your Create a directory for the embedded controller monitor software and copy the contents of the diskette to the directory From this directory for example c ecm type the following command at the DOS prompt ecm96mx baud 9600 lt Enter gt You can also execute directly from the diskette by entering the following command at the DOS prompt d ecm96mx baud 9600 lt Enter gt If you don t use the d drive substitute the corresponding letter for your drive Observe the ECM96Mx monitor screen displayed on your PC When the ECM96Mx program is invoked it communicates with the board and interrupts the RISMMx monitor The continuous LED sequencing terminates and a steady pattern is displayed The ECM96Mx program displays the baud rate followed by an asterisk which is the prompt for input At this point you can use the ECM96Mx commands described in Chapter 5 To download the demo board demonstration program from the PC to the SRAM on the demo board type load path mxdemo obj lt Enter gt go lt Enter gt where path represents the drive and directory where you installed the ECM96Mx software You are now executing the 80 196 demonstration program within the ECM96Mx RISMMx debugger environment The LEDs now sequence in a new pattern The MxDEMO program is a good vehicle for experimenting with the ECM96Mx commands Chapter 5 and the RISMMx commands Chapter 6 To return to DOS type exit lt Enter gt
48. ls and or absolutely locate the relocateable segments To load new code from the PC into the 80C196Mx evaluation board use the load and program operations The load command downloads code that will reside in RAM Table 5 5 discusses the ECM96Mx commands that currently operate on object files Table 5 5 ECM96Mx Commands that Operate on Object Files Command Names Command Notations and Descriptions load Notation load filename lt Enter gt Description Loads the content records of the object filename into the evaluation board s code RAM or external RAM The LOAD instruction cannot be used on ROM save Notations save filename lt Enter gt save code adaress to code_address2 in filename Enter Description Saves a region of memory as an object file that can be reloaded into the evaluation board s memory 5 5 2 Include Log and List Files Include files contain commands that ECM96Mx executes You can prepare a command sequence off line and later have ECM96Mx execute the commands just as if they were entered from the keyboard An include file can be tedious to generate with a text editor However ECM96Mx use a log file to store characters that you enter during an ECM96Mx session Later you can use the log file as an include file to recreate a command sequence List files keep a running record of commands you enter and the response 96 generates You can insert comments in list and log f
49. lugged in backward you may damage components on the board Turn on the PC and power supply You should now observe the LED light emitting diode bank at DP1 on the 80C196Mx demo board flashing through a power up sequence At power on LEDs 1 through 8 briefly turn on and off together They then blink in sequence continuously under control of the RISMMx program in the EPROM LEDs 9 and 10 remain off during the entire power up sequence If the LED bank is not flashing as described check the following items Be sure that power is supplied to the board Check the connection between the power supply cable and the board s power connector Confirm that the jumper settings are correct for the memory devices shipped with the board or for a memory device that you have installed If you have changed a memory device on the board check the speed of the device to ensure it meets specifications Press the reset button S1 on the 80C196Mx demo board If the board still does not respond see Technical Support on page 1 8 for information on getting assistance 2 3 GETTING STARTED WITH THE 80C196MX DEMO BOARD intel 2 3 INVOKING THE EMBEDDED CONTROLLER MONITOR SOFTWARE AND THE DEMONSTRATION PROGRAM After the 80C196Mx demo board is initialized and executing RISMMx from the EPROM you can start the Embedded Controller Monitor ECM and run the demonstration program 1 2 2 4 Insert the distribution disk in the dr
50. mand Names Command Notations and Descriptions1 2 go Notation go lt Enter gt Description Starts application code execution with the current value of the appli cation s program counter PC and the current breakpoint array Notation go forever lt Enter gt Description Clears the breakpoint array and starts execution at the current value of the application s PC Notation go from code_address lt Enter gt Description Loads the application s PC with code address and starts program code execution with the current breakpoint assignments Notation go from code_address forever lt Enter gt Description Loads the application s PC with code_address clears the breakpoint array and begins program code execution Notation go from code_address1 till code_address2 lt Enter gt Description Loads the application s PC with code_address1 sets the first default breakpoint BPO to the value of code address and then begins program code execution Notation go from code_address1 till code_address2 or code_address3 lt Enter gt Description Functions like the previous command except that it also sets the second default breakpoint BP1 to the value of code_address3 Notation go till code_address lt Enter gt Description Sets the first default breakpoint to code_address and then begins the program code execution with the current setting of the application s PC and the bre
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52. n board system while it is running 4 2 RESTRICTIONS The ECM operates under several restrictions Several user stack words are reserved for RISMMx software use when the evaluation board processes a host interrupt see the CAUTION on page 5 17 Internal register locations 0001E0H 000201H are reserved for RISMMx code use Users must ensure that no registers in this partition are used by code operating with the RISMMx A 9600 baud asynchronous serial port must be available on the host PC The TRAP instruction is reserved 4 2 intel 96 Commands intel 5 96 COMMANDS This chapter describes the ECM96Mx commands To begin using ECM96Mx see the procedures for powering up the board Connecting the Evaluation Board to the Host System on page 2 3 and invoking ECM96Mx for the first time Invoking the Embedded Controller Monitor Soft ware on page 2 4 51 ECM DEFINED 96 is the portion of the Embedded Controller Monitor ECM that runs on the host PC It provides several tools with RISMMx for testing and debugging code on the evaluation board ECM96Mx commands support tasks such as displaying and modifying program variables initial izing and operating program breakpoints and single stepping program execution 52 COMMAND LINE NOTATION This subsection explains command line notation Even though the commands are listed in lower case both ECM96Mx and DOS are case ins
53. n in upper case When several signals share a common name an individual signal is represented by the signal name followed by a number For example the EPA signals are named EPA1 EPA2 etc Port pins are represented by the port abbre viation a period and the pin number e g P1 0 P1 1 A pound symbol appended to a signal name identifies an active low signal For command line input to software such as MS DOS and ECM96Mx this manual uses notation described in Section 5 1 ECM96Mx Command Notation intel GUIDE TO THIS MANUAL 1 3 RELATED DOCUMENTS AND PRODUCTS The following lists refer to documents and products that are useful in designing systems using an 80C196Mx embedded microcontroller The documents are available through Intel Literature Order literature by calling the FaxBack Service on page 1 6 or the phone numbers for Prod uct Literature on page 1 8 Embedded Microcontrollers Order Number 270646 Embedded Applications Order Number 270648 Development Tools Order Number 272326 Packaging Order Number 240800 1 3 1 Data Sheet and User s Manual Supplement The data sheets are included in the Embedded Microcontrollers handbook and are also available individually 8 196 8XC196MD 8 196 Microcontroller User s Manual Order Number 272181 1 3 2 Application Notes These application notes are included in the Embedded Applications handbook and are also avail able individually
54. n interrogate memory locations while your program is running The RISM interrupts your program to process the command and then returns execution to your program 13H STOP_USER Halts execution of the application program POPs the user PC PSW and WSR from the stack and PUSHes the RISM PC PSW and WSR back onto the stack The RISM PC contains the location of the Monitor_Pause routine so the RISM returns to Monitor_Pause TRAP_ISR A pseudo command that cannot be issued directly by the host software It is executed when a TRAP instruction is executed The TRAP instruction is used by ECM to implement software breakpoints and single stepping On the 80 196 target board these functions are supported for code execution from on chip code RAM or the external RAM cannot insert TRAP into ROM 6 5 RISM REGISTERS COMMANDS intel Value Command Description 14H REPORT Loads a value into the DATA register This value indicates the status of the _STATUS application program Value Status 00 halted 01 running 02 trapped 15H MONITOR Provides for the addition of RISM commands for special purposes it uses the _ESCAPE RISM_DATA register to extend the command set of the RISM Ifthe value of the lower 16 bits ofthe RISM_DATA register is one RISM_DATA OXXXX0001H then the evaluation board microcontroller should execute either a reset RST instruction or a software initializatio
55. n routine The basic RISM requires only one of these extended commands 16H READ_WSR Reads the value in the Windows Selection Register and puts it into the RISM_DATA register 17H WRITE_WSR Takes the value in the RISM_DATA register and puts the data into the WSR It also resets RI and INT_MASK1A 18H SET_BAUD Takes the value in the RISM_DATA register and compares it to 7 If the value is less than or equal to 7 then it is assumed to be an index into the BAUD_RATE_CAPAB table Otherwise the value is assumed to be the literal baud rate value 19H READ_WORD Copies the address stored in RISM_ADDR to RISM_DATA when transmits _ TRANSMIT that back to the host 1AH SET_BLK_FLAG Is used in conjunction with block copy When this flag is set it assumes that the next N words are data and will be stored at the pre determined starting point 1BH READ Reads the checksum register and puts the data in RISM_DATA After the _CHECKSUM command is executed the checksum register is cleared reset 6 6 intel Components Jumpers and Connectors intel APPENDIX A COMPONENTS JUMPERS AND CONNECTORS This appendix includes figures and tables to increase your understanding of the 80 196 demo board 1 COMPONENTS Table A 1 lists the major components found on the 80C196Mx demo board See Figure A 1 for the location of each component Refer to Appendix B 1for a complete list of parts used to build the board Table A 1 Component List
56. nsion Connector JP4 Sheet 2 of 2 31 P2 6 1 0 Bi directional standard port 32 READY Ready is used to lengthen external memory cycles for slow memory by generating wait states 33 P2 7 VO Bi directional standard port 34 BUSWIDTH Configured for 16 bit bus cycle 8 bit bus cycle 35 VCC PWR Digital Supply Voltage 5 VDC 36 VCC PWR Digital Supply Voltage 5 VDC 37 GND GND Digital Circuit Ground 0 V 38 GND GND Digital Circuit Ground 0 V 39 VCC PWR Digital Supply Voltage 5 VDC 40 VCC PWR Digital Supply Voltage 5 VDC Table 8 26 pin I O Expansion Connector JP5 Sheet 1 of 2 Pin No Function Name Type Description 1 VCC PWR Digital Supply Voltage 5 VDC 2 GND GND Digital Circuit Ground 0 V 3 CLKO O Output of Internal Clock Generator 4 P6 0 O Wave Generator output or standard output port 5 EXTIT Programmable Interrupt pin 6 P6 1 Wave Generator output or standard output port 7 NMI Non Maskable Interrupt 8 P6 2 O Wave Generator output or standard output port 9 5 1 Chip Select Address range 4000H 7FFFH 10 P6 3 O Wave Generator output or standard output port 11 P6 6 O Pulse Width Modulator output port 12 P6 4 O Wave Generator output or standard output port 13 P6 7 O Pulse Width Modulator output port 14 P6 5 O Wave Generator output or standard output port 15 CS 3 Chip Sele
57. nt to the address of the first least signifi cant byte of the instruction If a breakpoint is set to an address that is not the first byte of an in struction execution is unpredictable To clear a breakpoint make it inactive assign a zero to the breakpoint e g br2 0 lt Enter gt When execution begins ECM96Mx saves the application code byte at any active breakpoint and substitutes a TRAP instruction for the saved byte When the TRAP in struction executes ECM96Mx restores the application code byte to its original address and dec rements the application program counter to point at the restored instruction The application code stops executing immediately before the instruction with a breakpoint Two things happen on the screen when a break occurs The prompt changes from a greater than symbol gt to an asterisk indicating a halt condition has occurred The target status shown in the control panel at the top of the console screen changes from TARGET STATUS RUNNING to TARGET STATUS STOPPED Many monitor programs similar to ECM96Mx display a message on the console when a break occurs e g program break at 001234H However ECM96MXx does not output a special break message Because the system supports concurrent interrogation of the evaluation board on which the application code is running a break can occur while you are displaying or modifying the state of the evaluation board Special br
58. nual is intended for design engineers who are already familiar with the principles of microcontrollers 11 MANUAL CONTENTS This manual has six chapters and two appendices Chapter 2 Getting Started with the 80C196Mx Demo Board includes a list of the kit contents and instructions on initializing the demo board and installing the software Chapter 3 Introduction to the 80C196Mx Demo Board describes the 80 196 demo board it includes a component level diagram and describes the installation of memory devices Chapter 4 Introduction to the Embedded Controller Monitor ECM introduces the user interface software which comprises ECM96Mx and RISMMx Chapter 5 ECM96Mx Commands describes the part of the Embedded Controller Moni tor ECM that executes on the host PC Chapter 6 RISM Registers and Commands describes the commands for the 80C196Mx reduced instruction set monitor RISMMx the part of the Embedded Controller Monitor ECM that executes on the demo board microcontroller Appendix A Components Jumpers and Connectors provides figures and tables to help you configure the 80C196Mx demo board and other information for you to consider as you de velop an application Appendix Parts List contains a listing of all discrete and active components for the 80 196 demo board GUIDE TO THIS MANUAL intel 1 2 NOTATIONAL CONVENTIONS AND TERMINOLOGY The foll
59. o board is configured for 8 bit bus width A key to using the 80C196Mx memory interface is understanding the relationship between internal memory addresses and ex ternal memory addresses For details see the 8 96 SXCI96MD 8XC196MH Microcon troller User s Manual order number 272181 3 5 MEMORY MODES The Chip Configuration Registers CCRs support a variety of memory bus functions The CCR bits select memory modes and are used for address data bus control Refer to the 8 96 8XC196MD 8XC196MH Microcontroller User s Manual order number 272181 for informa tion on CCR programming options 3 6 USING SRAM AND EPROM The 80C196Mx demo board supports SRAM static operation and EPROM normal operations and programming As shipped the demo board has a 64 Kbyte SRAM in U2 see Figure 3 1 on page 3 2 which can be replaced with a 256 Kbyte EPROM At power up the 80C196Mx boots from the on chip OTPROM You can then download your application code to the SRAM See Applying Power to the Demo Board on page 2 2 and Invoking the Embedded Controller Mon itor Software and the Demonstration Program on page 2 4 3 3 INTRODUCTION THE 80C196MX DEMO BOARD intel 3 6 1 Memory Configurations and Installation The demo board fully supports both SRAM and EPROM devices Sockets U2 and U6 Figure 3 1 on page 3 2 accept 28 32 pin DIP devices The ECM96Mx RISMMXx software Chapter 4 Introduction to the Embedd
60. o supports microcontroller vari ables You can examine the window select register WSR and you can examine and modify the program counter PC the program status word PSW and the stack pointer SP NOTE Memory locations 0001 000201 are reserved for use by RISMMx ECM 96MXx gives a warning if you attempt to modify these memory locations Table 5 10 contains definitions for supported data types Table 5 10 Supported Data Types Data Types Data Type Definitions byte is an 8 bit variable No alignment rules enforced for BYTE variables char A CHAR is a special case of a BYTE CHAR variables are displayed as ASCII characters word A WORD is a 16 bit variable The address of a WORD is the address of its least significant byte A WORD must start at an even byte address dword A DWORD is a 32 bit variable The address of a DWORD is the address of its least significant byte DWORD must start on an address that is evenly divisible by four This more restrictive alignment rule applies only to ECM96Mx commands when the single line assembler is used see Single Line Assembler SLA Commands on page 5 17 real A REAL is a 32 bit binary floating point number that conforms to the FPAL 96 definition The 32 bits contain a sign bit an 8 bit exponent field and a 23 bit fraction field ECM96Mx commands use standard scientific notation to represent REAL numbers Note that FPAL 96 has special represen
61. ogram referred to as RISM MX resides in the evaluation board ROM 80C196Mx executes it The ecm96mx exe software known as ECM96Mx resides and executes in DOS and Windows based PCs BIOS com patible computers RISMMx is a reduced instruction set monitor for the 80 196 It executes rudimentary opera tions issued by ecm96mx exe which operates in the host PC RISMMx consists of approximately 700 bytes of 80C196Mx code a short section of initialization code and an interrupt service rou tine ISR that processes interrupts from the host system The RISMMx ISR consists of a short prologue and then a case jump to one of several handlers ECM96Mx executing in the host PC provides commands for loading and running code on the 80C196Mx It also has features that facilitate test and debug tasks For example it can use in clude list and log files to record on line ECM sessions and construct batch ECM sessions 4 1 INTRODUCTION THE EMBEDDED CONTROLLER MONITOR ECM intel Partitioning the ECM into two separate programs supports a number of goals in developing this system RISMMx code in the evaluation board is simple and small This maximizes the space available for user code The ECM96Mx user interface s features expand beyond the resources of the evaluation board because ECM96Mx runs in the host PC RISMMx and ECM96MXx run concurrently They allow you to interrogate and modify the state of the evaluatio
62. owing notations and terminology are used throughout this manual italics Board Components 1 2 The pound symbol has two meanings depending on the context When used with a signal name the symbol means that the signal is active low When used in an instruction the symbol prefixes an immediate value in immediate addressing mode Italics identify variables and introduce new terminology The context in which italics are used distinguishes between the two possible meanings Variables in registers and signal names are commonly represented by x and y where x represents the first variable and y represents the second variable For example in register Px_MODE y x represents the variable that identifies the specific port and y represents the register bit variable 7 0 or 15 0 Uppercase X no italics represents an unknown value or a don t care state or condition The value may be either binary or hexadecimal depending upon the context For example the hexadecimal value FF2XAFH indicates that bits 11 8 are unknown 10XX in binary context indicates that the two LSBs are unknown The following abbreviations are used to represent discrete and active components Cx capacitor Dx diode DPx LED bank Ex jumper JPx connector Lx inductor Px port Rx resistor RPx resistor pack Sx switch Ux device socket e g latch buffer memory controller intel Assert and Deassert Instructions NC Numbers Uni
63. r Bits Register Names Reserved Bits Set and Clear Signal Names Command Lines 1 4 intel microamps microamperes uF microfarads us microseconds Bit locations are indexed by 7 0 or 15 0 where bit O is the least significant bit and 7 or 15 is the most significant bit An individual bit is represented by the register name followed by a period and the bit number For example WSR 7 is bit 7 of the window select register In some discussions bit names are used For example the name of WSR 7 is HLDEN Register names are shown in upper case For example TIMER2 is the timer 2 register timer 2 is the timer If a register name contains a lowercase character it represents more than one register For example represents four registers PI_REG 2 P3_REG and P4_REG Certain bits are described as reserved bits In illustrations reserved bits are indicated with a dash These bits are not used in this device but they may be used in future implementations To help ensure that a current software design is compatible with future imple mentations reserved bits should be cleared given a value of 0 unless otherwise noted The terms set and clear refer to the value of a bit or the act of giving it a value If a bit is set its value is 1 setting a bit gives it a 1 value If a bit is clear its value is 0 clearing a bit gives it a 0 value Signal names are show
64. r describes the reduced instruction set monitor RISM The full RISM command set described in this chapter exists in the external ROM on the 80C196MXx target board The target board runs this software under normal 80 196 operation 61 RISM REGISTERS Table 6 1 discusses RISM registers Table 6 1 RISM Registers Registers Definitions RISM_DATA A 32 bit register that acts as the primary data interface between software running in the host and the RISM running in the target 80 196 RISM_ADDR A 24 bit register that contains the address to be used for reading and writing target memory RISM_STAT An 8 bit register used to store RISM status and state information This register contains the following Boolean flags DLE FLAG Indicates the next character received by the RISM should be treated as a data byte even if its value corresponds to an implemented command RUN FLAG Indicates that the target is running user code TRAP FLAG Indicates a software TRAP has occurred while running user code suspending its execution USER PC Saves the user s program counter while the user s code is not executing Note that program execution must be stopped to use this command USER PSW Saves the user s program status word while the user s code is not executing 6 1 RISM REGISTERS COMMANDS intel 62 RISM STRUCTURE The RISM resides in the target system It provides the interface between the target system
65. s indicate an optional argument 5 14 intel 96 COMMANDS 5 7 2 5 Commands There two commands for examining the stack Both commands be used whether the ap plication program is running or stopped Table 5 12 lists the STACK command s notations and descriptions Table 5 12 Stack Command Notations and Descriptions Command Notations Command Descriptions stack stack_address lt Enter gt Examine the 16 bit variable at a given offset from the stack pointer ECM96Mx executes a word word_address command where word_address takes the value of the system stack pointer stack_address stack stack_address1 to stack_address2 Examine a sequence of 16 bit variables at a fixed offset lt Enter gt in the system stack ECM96Mx executes a word word_address1 word_address2 command where both word_address fields are formed by adding the corresponding stack address to the current value of the system stack pointer Press lt Space gt to stop the output for a long display Press lt Space gt again to resume output or press lt Enter gt to terminate the command t The square brackets indicate an optional argument 5 7 3 STRING Commands There is only one form of the STRING command string Notation string byte_address Description The line begins with a hexadecimal display of byte_address followed by the NUL terminated ASCII string starting at
66. t 0 logic 16 7 Analog inputs to the on chip converter 17 VREF PWR Reference Voltage for the A D Converter 18 P1 0 Analog inputs to the on chip converter 19 AGND GND Reference Ground for the Converter and Port 0 logic 20 P1 1 Analog inputs to the converter 21 VREF PWR Reference Voltage for the A D Converter 22 P1 2 Analog inputs to the on chip converter COMPONENTS JUMPERS AND CONNECTORS intel Table 6 26 pin I O Expansion Connector Sheet 2 of 2 23 AGND GND Reference Ground for the Converter and Port 0 logic 24 P1 3 Analog inputs to the on chip converter 25 VREF PWR Reference Voltage for the A D Converter 26 P1 4 Analog inputs to the on chip converter Table 7 40 I O Expansion Connector JP4 Sheet 1 of 2 Pin No Function Name Type Description 1 VCC PWR Digital Supply Voltage 5 VDC 2 VCC PWR Digital Supply Voltage 5 VDC 3 A8 VO Address Data lines for multiplexed address and data bus 4 ADO 1 0 Address Data lines for multiplexed address and data bus 5 A9 VO Address Data lines for multiplexed address and data bus 6 AD1 1 0 Address Data lines for multiplexed address and data bus 7 10 VO Address Data lines for multiplexed address and data bus 8 AD2 VO Address Data lines for multiplexed address and data
67. tations for infinity and for NaNs Not a Number used to signal error conditions If ECM96Mx detects one of these special values it outputs an appropriate text string instead of trying to display the value in scientific notation stack A STACK is a 16 bit variable that resides in the system stack The address of a stack variable stack_address is relative to the current stack pointer and must be even word aligned string A STRING is a sequence of ASCII characters terminated by the NUL character which has the binary value of zero 5 7 1 BYTE WORD DWORD and REAL Commands ECM96Mx has four basic commands to examine and modify BYTE WORD DWORD and REAL variables There is an additional command for WORD variables only ECM96MX COMMANDS intel Table 5 11 lists the BYTE WORD DWORD and REAL commands notations and descriptions Table 5 11 BYTE WORD DWORD and REAL Command Notations Command Notations Descriptions variable variable_address lt Enter gt Examine and possibly modify one or more variables at sequential addresses 96 displays the hexadecimal address and the value of the variable in the default base You can then terminate the command modify the variable or examine the variable at the next address Enter Allows you to terminate the command variable value Assign this value to the variable Allows you to terminate the command with lt Enter gt or ex
68. tel ECM96Mx implements the STEP operation by using the TRAP instruction To STEP over a giv en instruction ECM96Mx determines the subsequent instruction or all possible subsequent in structions for a conditional branch and places a TRAP instruction at these locations A TRAP is also set at location FF2080H in case the evaluation board is reset during the STEP ECM96Mx allows the application program to execute until the program encounters TRAP locations ECM 96MXx then restores all overwritten application code bytes A SUPER STEP operation is similar to a STEP however ECM96Mx treats the CALL instruc tion as a special case During a STEP ECM96Mx puts the TRAP at the evaluation board call ad dress during a SUPER STEP ECM96Mx places the TRAP at the instruction following the CALL When the application s EI bit is saved it suppresses interrupts during STEP but not SU PER STEP then ECM96Mx restores the interrupt To ensure that the executed instruction does not modify the EI bit ECM96Mx simulates several instructions PUSHF POPF PUSHA POPA DI ED as opposed to the microcontroller executing the instructions ECM96Mx also simulates the IDLPD instruction during a STEP to prevent the evaluation board from locking up The sim ulation treats the IDLPD as a two byte NOP Instruction simulation occurs only with STEP op erations During a GO or a SUPER STEP operation the evaluation board executes all instructions 5 6 4 2 STEP and SUPER ST
69. test information The following catalogs and information are available at the time of publication 1 Solutions OEM subscription form Microcontroller and flash catalog Development tools catalog Systems catalog Multimedia catalog Multibus and iRMX software catalog and BBS file listings Microprocessor PCI and peripheral catalog Quality and reliability and change notification catalog O AL Intel Architecture Labs technology catalog 1 3 5 Bulletin Board System BBS The bulletin board system BBS lets you download files to your computer The application BBS has the latest ApBUILDER software hypertext manuals and datasheets software drivers firm ware upgrades application notes and utilities and quality and reliability data 916 356 3600 U S Canada APac up to 19 2 Kbaud 44 0 1793 496340 Europe 1 6 intel GUIDE TO THIS MANUAL The toll free BBS available in the U S and Canada offers lists of documents available from FaxBack a master list of files available from the application BBS and a BBS user s guide The BBS file listing is also available from FaxBack see page 1 6 for phone numbers and a description of the FaxBack service 1 800 897 2536 U S and Canada only Any customer with amodem and computer can access the BBS The system provides automatic configuration support for 1200 through 19200 baud modems Typical modem settings are 14400 baud no parity 8 data bits and 1 stop bit 14400
70. to execute them from the keyboard Once the command parser reaches the end of the file the file closes Only one include file can be opened ata time pause Notation pause filename lt Enter gt Description Use within include files Pause is not a file oriented command When the command parser reads this command it stops parsing and waits for you to press lt Space gt from the keyboard The lt Space gt character cannot come from the include file The pause command provides a way to pause in the middle of an include file operation When you press lt Space gt the parser continues parsing commands within the include file list Notations filename Enter e list Enter Description Attempts to open filename as a writable file If a file with filename already exists ECM96Mx asks if the file is to be overwritten or if the new data should be appended to the end of the existing file It then opens the file and stamps it with the current date and time from the system clock After this the file records the commands you enter and the responses 96 generates If you do not enter a filename the list command uses the last filename entered as part of a list filename command If you have not entered any list filename commands it uses the default filename LIST ECM listoff Notation listoff lt Enter gt Description Closes the last list file specified by the list command If no filename is specified
71. ts of Measure GUIDE TO THIS MANUAL The terms assert and deassert refer to the act of making a signal active enabled and inactive disabled respectively The active polarity high low is defined by the signal name Active low signals designated by a pound symbol suffix active high signals have no suffix To assert RD is to drive it low equal to or less than Vo to assert ALE is to drive it high equal to or greater than V to deassert RD is to drive it high to deassert ALE is to drive it low Instruction mnemonics are shown in upper case to avoid confusion You may use either upper case or lower case in your source code The term NC is an abbreviation for no connection It indicates that no connection is required Hexadecimal numbers are represented by a string of hexadecimal digits followed by the character H Decimal and binary numbers are represented by their customary notations That is 255 is a decimal number and 11111111 18 a binary number In some cases the letter is appended to binary numbers for clarity The following abbreviations are used to represent units of measure A amps amperes mA milliamps milliamperes Kbyte kilobytes KHz kilohertz KQ kilo ohms Mbyte megabytes MHz megahertz ms milliseconds mW milliwatts ns nanoseconds pF picofarads V voltage volts VDC voltage direct current VAC voltage alternating current W watts 1 3 GUIDE TO THIS MANUAL Registe
72. tware to operate as a single line assembler SLA References are never made to information entered on other lines The SLA does not generate labels The ECM96Mx SLA accepts mnemonics for all standard instructions that can be executed by the microcontroller It does not accept generic in structions such as BE or CALL processed by ASMO6 into standard instructions for MCS 96 mi crocontrollers Neither does it accept JE SCALL or LCALL which are the specific instructions understood by an MCS 96 microcontroller 5 8 1 Single Line Assembler SLA Commands The SLA is useful for assembling short code sequences to patch application code as it is tested These on line software routines are useful for testing or patching programs but the tool is not in tended as a replacement for a full featured assembler such ASM96 working with an in circuit emulator You can invoke the SLA whether application code is being executed or not It is not recommended that you dynamically modify code executed during your modification session Table 5 14 lists the SLA command s notations and descriptions Table 5 14 SLA Command Notations and Descriptions Command Notations Command Descriptions asm code_address lt Enter gt Causes ECM96Mx to enter the SLA mode The assembly program counter APC is set to code_address Assembly language code entered by the user is converted to object code and loaded into the evaluation board s memory ECM9
73. uch as PLM arrays and structures are not recognized Notes 1 All commands used to invoke ECM96Mx begin with a hyphen 2 The square brackets indicate an optional argument 5 3 ECM96MX COMMANDS intel 5 4 GENERAL ECM96MX COMMANDS Issue the general commands discussed in Table 5 4 after you invoke 96 Table 5 4 General ECM96Mx Commands Command Names Command Notations and Descriptions dos Notation dos lt Enter gt Description Lets you temporarily leave 96 and return to DOS to run other application software To return to 96 type exit lt Enter gt exit Notation exit lt Enter gt Description This command has two functions Returns the user to ECM96Mx from DOS When it returns ECM96Mx has the conditions that were in effect when it was temporarily suspended Closes any file that ECM96Mx has opened and exits to DOS You can use this command even if the evaluation board is running a program execution continues ECM96Mx sets the selected COM port to 9600 baud 8 data bits no parity and one stop bit and then returns to DOS The quit command also performs this duty base Notations base lt Enter gt base 101 base 100 10t breakpoint default 10h address default lt Enter gt Description Displays the default arithmetic base The default base is used to display variables and to enter numbers into the command parser However you

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