ANC-1055 PC 24-bit Digital I/O Card
Contents
1. 55 8 edere PEDE EA EE ege PEN 4 2 1 1 1 PAL TYPE SELECTION JUMPER 1 AND 3 ccccccsssseseeeeeeeeeeeeeeceeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeees 4 2 1 1 2 PORT A DIRECTION JUMPER 2 eiie teet edere eee ete eve ee Eee essed ee ee E eve e e TE ee ve sedi ee eee e Eee ve E eee eve E eoe vo ed 4 2 1 1 3 INTERRUPT VECTOR SELECT JUMPER 4 2 2 5 2 1 1 4 RIBBON CABLE CONNECTIONS J ccccccsseeeeeeeeeeeeeeeeeceeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeees 6 2 1 1 5 USER SELECTED PORT 5 8 7 7 3 0 SOFTWARE DESCRIPTION eee a aeo oe o xe o neo neat aa ean S o v n eeu a ean i aee o eau ees aea nov aeos eae eI 7 APPENDIX A SAMPLE CARD PROGRAMS 9 APPENDIX B OPTO 22 PIN OUTPUTS eoe e eo ee oe aeo eo e ee oo e eoo e eoe eoa o e eoo e eoe aeo eoa eoo e eoe eoa e e eoo e eoe aepo nea 12 APPENDIX 8255 PERIPHERAL CONTROLLER CHIP 13 1643 v Westwood Blvd W Los Angeles CA 90024 310 473 8995 FAX 310 473 7112 ii ANC 1055 IBM Compatible2. H20 THEN GOTO 2130 ELSE 2120 2130 BUF X INP A 1643 v Westwood W Los Angeles 90024 310 473 8995 FAX 310 473 7112 9 2140 NEXT X 2150 RETURN 2160 REM 2170 REM WRITE OUT A BUFFER OF 1024 CHARACTERS 2180 REM 2190 FOR X 0 TO 1023 2200 OUT B BUF X AND amp HFF 2210 IF INP C AND amp H4 THEN GOTO 2210 2220 NEXT X 2230 RETURN Assembly Language Programs The ANC 1055 may be driven directly by ASSEMBLY LANGUAGE with an increase of operational speed up to 400 1 compared to a similar BASIC routine as above The following programs detail how the ANC 1055 may be used to read write to a data buffer 1024 characters long The user will note that other functions would need to be performed in order for these routines to be useful i e loading buffer setting up whatever peripheral is being communicated with etc EQUATES BASED ON ANC 1055 CARD BASE ADDR OF 300H AS SHIPPED PORTA EQU 300H 8 BIT PORT A CHANGE AS APPROP PORTB EQU PORTA 1 8 BIT PORT B PORTC EQU PORTB 1 8 BIT PORT CNTL EQU PORTC 1 CONFIGURATION REG OF 8255 PORTE EQU CNTL 1 INTR ENABLE PORT A DIRC DATA BUFFER AREA BUFFER SEGMENT AT xxH BUFFER LOCATION DEFINED BY USER DB 1024 RESERVE 1024 LOCATIONS INITIALIZE ANC 1055 CARD WILL MAKE USE OF THE MODE 1 HANDSHAKING OPERATION OF THE 8255 FOR INPUT INIT MOV DX CNTL SET UP CONTROL REG ON 8255 MOV AL OBCH SETS UP PORT A FOR INPUT B FOR OUTPUT OUT
3. 24 310 473 8995 FAX 310 473 7112 3 2 1 Card Hardware Options The following sections detail the use and changes of the strap options of the ANC 1055 To properly identify the pin locations place the card component side up with the card s gold connector pointed towards you The common connection designates where one end of the jumper should always be connected to the desired card action or operation Some jumpers merely enable functions like interrupt vector while others allow selection of hardware modes of operation Some of the strap options may require a circuit trace on the solder side of the card between pads to be cut with an X Acto Knife or Dremel Tool 2 1 1 0 Card Address 8 Bit Switch The switch can be set to occupy any address on the Pc from OOOH to 3F8H in increments of 8 addresses When shipped the card is set to address 300H This means that Port A is 300H and all other ports are referenced from 300H 2 in address bit wt Off 1 in address bit wt Ax Address bit x i e A3 is bit 3 of address 1 D ml 2 Ta 4 NE 5 NEM 1 71 8 1 Figure 2 1 2 1 1 1 PAL Type Selection Jumper 1 3 These 2 jumpers are included to disable input to pins 12 and 19 of the U2 GAL jumpers included to maintain compatibility with previous versions of the ANC 1055 where a PAL16L8CN was used These jumpers allow the user to disconnect the external interrupt from p
4. DX AL SEE APPENDIX C P 10 180 MOV DX PORTE SET LATCH FOR PORT A INPUT OPERATION MOV AL O AND DISABLE ALL INTERRUPT INPUT PINS OUT DX AL SEE P 4 OF MANUAL PORT E MOV DX PORTA DO A DUMMY READ TO FLUSH CHARACTER AL DX POWER UP 1643 v Westwood Blvd W Los Angeles 90024 310 473 8995 FAX 310 473 7112 10 RET READ IN A BUFFER OF 1024 CHARACTERS RD1055 PUSH PUSH PUSH PUSH MOV MOV LOP1 MOV IN AND JZ MOV IN MOV INC DEC JNZ JMP AX BX SAVE ALL REGISTERS DX BX BUFFER BEGINNING OF WHERE DATA IS STORED CX 1024 OF CHARACTERS TO READ IN DX PORTC USE TO SIGNAL WHEN DATA IS PRESENT AL DX READ IN STATUS BYTE AL 20H JUST LOOK AT BIT LOP1 NEXT CHARACTER HERE YET DX PORTA SET UP TO READ PORT A AL DX GET BYTE BX AL 5 IN COMPUTER S BUFFER BX INCREMENT BUFFER ADDRESS Cx DECREMENT LOOP COUNTER LOP1 GET NEXT BYTE OR EXIT EXIT ALL DONE WRITE OUT A BUFFER OF 1024 CHARACTERS WR1055 PUSH PUSH PUSH PUSH MOV MOV LOP2 MOV MOV OUT LOP3 MOV IN AND JNZ INC DEC EXIT POP POP POP POP AX BX Cx SAVE ALL REGISTERS DX BX BUFFER BEGINNING OF WHERE DATA IS STORED CX 1024 OF CHARACTERS TO READ IN DX PORTB SET UP TO WRITE PORT B AL BX GET BYTE FROM COMPUTER S BUFFER DX AL WRITE BYTE TO PORT B DX PORTC USE TO SIGNAL WHEN DATA IS PRESENT AL DX READ IN STATUS BYTE AL 04H JUST LOOK AT BIT LOP3 DATA ACCEPTED YE
5. Digital I O Card 1 0 Overview Providing 3 8 bit buffered TTL I O channels the ANC 1055 occupies a short card slot in the IBM Pc XT or AT computer Programmable interrupt circuitry is provided to monitor 4 of the 24 channels to generate a user selectable and software enabled interrupt to the IBM Pc There are 3 separate modes of operation all under software control allowing bidirectional dedicated or strobed Input Output operation Additionally the ANC 1055 card is directly pin connection compatible with the Opto 22 Crydom and Gordos lines of modular relay boards to provide an industrial quality interface for control and monitoring applications Specifically the ANC 1055 card is directly compatible with the PB16 and PB24 series units with the appropriate interface cable available from ANTONA as an ANC CABL The designer should be aware that the pin numbers on the ANC 1055 J1 connector and the control module numbers on the PB Series I O Modules do not match Refer to the technical manual for the specific manufacturers module for input output control signal designation Programming can be performed in ASSEMBLY LANGUAGE or by using English like INP OUT commands in MS DOS BASIC The User s Manual included with the card provides both BASIC and ASSEMBLY LANGUAGE source code which the designer may use as a basis for develping his own device drivers 1 1 Card Initialization Upon system power up the card s 8255 control register must be loaded w
6. Rev D 15 00 ANC 1055 24 Channel Digital I O Pc Compatible Card Ant ona Corporation Los Angeles CA 1643 v Westwood W Los Angeles 90024 310 473 8995 FAX 310 473 7112 Antona Corporation Copyright Copyright 1992 by Antona Corporation All rights reserved no part of this publication may be reproduced transmitted transcribed stored in a retrieval system or translated into any language or computer language in any form or by any means electronic mechanical magnetic optical chemical manual or otherwise without the prior written permission of the Antona Corporation of Los Angeles California Warranty Antona Corporation products are warranted to be free from defects in materials and workmanship for a period of one 1 year from the date of original shipment to customer This warranty is limited to the replacement or repair of parts not subjected to misuse neglect unauthorized repair alteration except strap options accident or failure due to the effects of static electricity discharge In no event shall Antona corporation be liable to the purchaser for loss of use profit or consequential damages or damages of any kind including but not limited to accidental loss or damage to other equipment arising out of use of Antona Corporation equipment whether or not said equipment was used properly This warranty is in lieu of any other warranty expressed implied or statutory including wi
7. T BX INCREMENT BUFFER ADDRESS CX DECREMENT LOOP COUNTER LOP2 NEXT BYTE OR EXIT DX RESTORE REGISTERS Cx BX AX ALL DONE EXIT TO CALLER 1643 v Westwood Blvd W Los Angeles CA 90024 310 473 8995 FAX 310 473 7112 11 Appendix B Opto 22 Pin Outputs ANC 1055 OPTO 22 OPTO 22 OPTO 22 RELAY 24 22 1 PINS 2 50 ARE GROUND 1643 v Westwood Blvd W Los Angeles 90024 310 473 8995 FAX 310 473 7112 12 Appendix C 8255 Peripheral Controller Chip The following pages provide an overview of the 8255 chip operation Note that the operation options limitations register definitions and input output modes are all covered The IBM TECHNICAL REFERENCE 6025005 is also an excellent source of information on the 8259 Controller Chip Of particular use are the pages showing I O configurations when the appropriate initialization word is output to the 8255 NOTE This Appendix is included with purchase of product 1643 v Westwood Blvd W Los Angeles 90024 310 473 8995 FAX 310 473 7112 13
8. bit set low will the control signals to the peripheral device under control be honored An alternate method is to use logic such that only when the ANC 1055 1643 v Westwood Blvd W Los Angeles CA 90024 310 473 8995 FAX 310 473 7112 7 outputs a low signal on any of the port lines will the peripheral go into operation called negative true logic In all cases the designer is responsible for handling powerfail or other computer problems Once the digital input output card is initialized the user need only format the 8 bit data to output and write it to the port for the write operation Reading is performed by inputting from the ports configured for input operation This process may sound complicated but really is not Examine the sample BASIC and Assembly Language software drivers in Appendix A to get a better feel for the whole operation Note that for AT operation the user should not initialize and then read write to a port in Assembly Language This is because at AT speeds the 8255 requires more time to configure itself then the hardware can handle before the next command arrives Solution place a NOP instruction between initialization commands and reading writing to the 8255 1643 v Westwood Blvd W Los Angeles CA 90024 310 473 8995 FAX 310 473 7112 8 Appendix A Sample Card Programs The following BASIC listing provides a sample software driver for card initialization reading and writing it is a sample only and i
9. c for pinouts The function of the individual bits on Port E are as follows Weight High level 1 enables interrupt input on Port C Bit 0 4 1 2 High level 1 enables interrupt inout on Port A Bit 7 5 notused Master Interrupt Enable Bit 0 to enable 1 to disable 3 If jumper 2 enabled will control direction of data flow to 5645 on Port A 1 for output O for input This port should be set up shortly after power up depending upon the user applications IMPORTANT INTERRUPT INPUTS ARE DETECTED DEPENDING ON HOW THE USER INITIALIZED THE 8255 FOR LOW GOING EDGE OR LOW LEVEL INPUT THE PORT A 7 INTERRUPT IS LOW LEVEL INPUT ONLY 2 0 Card General Hardware Information The ANC 1055 is electrically and mechanically compatible with the IBM Pc XT AT Installation of the card within the mainframe of the Pc should be performed as detailed by any of IBM s Inventory Checklists which explain adding circuit cards to the IBM Pc motherboard The procedure basically consists of 1 Remove the power cord from the base unit 2 Remove the screws on the back of the unit and pull forward the unit cover 3 Remove the metal plate at any unused card slot location 4 Install the ANC 1055 Card set card address before insertion 5 Replace cover screws and power cord last Connect mating 50 pin female ribbon cable connector to ANC 1055 at rear of unit 1643 v Westwood Blvd W Los Angeles 900
10. component headers For long line termination with a 220 ohm resister to 5v and a 330 ohm resister to ground Note that because port C is programmable for 4 bits input output that a buffer may be needed for 1 socket while a terminator header may be needed for the input socket site The port bits are associated with the following sockets Pot 14 Pin Socket B PT BLWR 4 7 PT BUPR PT C LWR PT C UPR 3 0 Software Description The ANC 1055 may be controlled under MS DOS BASIC or 80X86 Assembly Language The most common use is probably with BASIC but in applications where speed of operation is critical Assembly Language may be the only choice Note that a user may write driver software that is CALLed from BASIC or is completely interrupt driven and operates as a background task or serviced when the attached device to the ANC 1055 signals through one of 4 interrupt lines Driver software may be divided into 3 basic tasks initialization reading and writing to the card Initialization should be performed as soon after power up as possible as the 8255 controller chip on the ANC 1055 will be configured a 3 input ports The designer should consider this factor if the ANC 1055 is intended for control application where drive signals could be applied with the card uninitialized A common practice is to have one output bit assigned as a low enabled system enable In this way only after the card has been initialized and the enable
11. d 49 50 Ground Figure 2 1 J1 50 pin ribbon cable I O connector viewed looking into connector 1643 v Westwood Blvd W Los Angeles 90024 310 473 8995 FAX 310 473 7112 6 2 1 1 5 User Selected Port Buffers Terminators There are 4 sockets located near the 50 pin connector which may be populated with a variety of TTL compatible drivers or resister termination networks When shipped the card is populated with 74532 buffers but note that any 74xx series part may be put into these sockets for output buffering 745125 for tri state 74500 for inverted output 74538 for open collector buffering etc Port A has an on board LS245 LS645 to provide input or output buffering The chip is socketed so that the user may replace this part with a 74LS640 through 74LS644 for open collector tri state or inverted output input If any of the three 8 bit ports requires a passive pull up or pull down a resister pack site is provided for each port RP2 for port A RP3 for port C and RP4 for port B The user may select the resister value as appropriate to the application Pin 1 of each resister pack site is connected to 5 volts and pin 10 is connected to ground note RP4 pin 1 is located nearest the F1 fuse and is fused through F1 See schematic For input operation of ports B and C the user may use 14 pin component headers a provide a 1K resister pulled up to 5v either installed in the resister packs or soldered onto the
12. d examines the proper bits to determine the source of the interrupt The user must set up the IBM Pc s interrupt controller chip 8259 in addition to providing the appropriate interrupt hadling software 1 3 I O Port Function ANC 1055 has a variety of I O modes All of the modes can be directly controlled under MS DOS BASIC ir 8088 ASSEMBLY LANGUAGE Appendix C is a detailed specification of the 8255 Peripheral Controller Chip covering the various modes Basically the user outputs a single control byte to control port D which configures port A B and C to the desired mode There are 3 main modes of operation allowing bidirectional I O on port A dedicated on ports A B and C with port C being capable of 4 bits each of input or output The last mode offers strobed Input Output operation to latch input data and generate an interrupt or status line to the 8088 1 3 1 I O Port Addressing The following table details the address and function performed for I O port operation CAR BIT WEIGHT HEX VALUE COMMENT DPO 98 7654 3210 ASSHIPPED RT 1643 v Westwood Blvd W Los Angeles CA 90024 310 473 8995 FAX 310 473 7112 2 note that the X s are user selected bits set on the 8 bit switch on the ANC 1055 card The output input bits are directed to the 50 pin ribbon connector located at the right side of the ANC 1055 card a ground and 5v connection are also provided at the connector See hardware connector section or schemati
13. ith the desired system configuration A sample initialization program is included as Appendix A of this manual The general procedure for initialization of the card is as follows 1 Initialization of the peripheral controller 8255 chip 2 Initialization of the Control Latch to enable interrupt generation and data direction flow of Port A if used 3 If interrupts are used enabling the selected bit on the 8259A interrupt chip s mask register located on the motherboard of the Pc to honor the selected interrupt vector see IBM Technical Reference 4 Transfer control to start execution of user stored BASIC or 8088 ASSEMBLY LANGUAGE program 1643 v Westwood Blvd W Los Angeles CA 90024 310 473 8995 FAX 310 473 7112 1 1 2 Interrupt Operation The general procedure for using interrupts is as follows 1 Enable interrupts un der software control 2 When interrupt is requested save all registers 3 Input status to determine source of interrupt read 8255 to determine interrupt source if needed 4 Do interrupt service routine 5 Restore all registers re enable software interrupts and return to main program The ANC 1055 can provide up to 4 interrupt inputs directed to any one of 5 user selected interrupt vector locations This means that the user can enable under software control 0 to 4 individual interrupt sources directed to a single interrupt vector location The user then inputs port C and port A of the 8255 an
14. ort A bit 7 JP1 and port C bit O User should not be concerned with disconnecting these jumpers unless a PAL not GAL is in the U2 socket 2 1 1 2 Port A Direction Jumper 2 This 3 pin jumper allows the user to select the source of direction control for port A If the jumper shorts posts W and Y then bit 3 of the Port E control latch controls direction as shipped Port A must be configured for input normally and set to output in response to the state of port C bit 6 level If Y and Z jumper posts are shorted then the state of Port C bit 6 will control direction Note that if Port C is an input port then either an external drive signal connected to the port C bit 6 pin or the Port E bit 3 latch can control the direction of data flow Lastly the user can install jumpers in both V to Z and W to 1643 v Westwood Blvd W Los Angeles CA 90024 310 473 8995 FAX 310 473 7112 4 Y so that the Port E bit 3 signal can control direction and drive the Port C bit 6 when port C is used in input mode 2 1 1 3 Interrupt Vector Select Jumper 4 There are 5 vectors that can be chosen for the card to jump to when an interrupt is generated The schematic and the table below show what interrupt is generated VECTOR PIN REV B PIN REV A The version B silk screen artwork for the ANC 1055 has been changed so that the single digit associated with the interrupt pin identifies the IRQ line on the 5 bus 1643
15. s not intended for resale by the purchaser or end user nor is it supported in any way by the Antona Corporation It is supplied only as a basis for the purchaser of the ANC 1055 to get an idea of the capabilities and features of the card 10 REM 20 REM SET ANC 1055 UP FOR 24 OUTPUT BITS 30 REM THEN OUTPUT ALL POSSIBLE BITS PATTERNS 40 REM TO EACH PORT A B AND C 50 REM CARD SET TO ADDR 300H AS SHIPPED 55 REM 60 A amp H300 1 C A 2 D A 3 E A 4 70 REM 80 REM SET PORTS TO OUTPUT BUFFER ON PORT A TO OUTPUT 90 REM 100 OUT D amp HBC OUT 0 110 REM 120 REM DO BINARY UP COUNT AND OUTPUT TO EACH PORT 130 REM 140 FOR X 0 255 150 OUT A X OUT B X OUT 160 NEXT X 170 GOTO 140 180 END 1000 REM 1010 REM A N T CORPORATION REV 1 1 1020 REM 1030 REM SAMPLE ANC 1055 INITIALIZATION READ AND WRITE 1040 REM SUBROUTINES 1050 REM THE FOLLOWING MS DOS BASIC PROGRAM LISTING 1060 REM PROVIDES 3 SIMPLE PROGRAMS WHICH READ IN AND 1070 REM WRITE OUT THE SAME BUFFER OF 1024 BYTES THESE 1080 REM ROUTINES MAY BE USED AS SUBROUTINES FROM A MAIN 1090 REM PROGRAM WHICH INTERFACES WITH THE ANC 1055 CARD 1100 REM 2000 DIM BUF 1024 2010 REM 2020 REM INITIALIZE ANC 1055 CARD 2030 REM 2040 A amp H300 1 C A 2 D A 3 4 2050 OUT D amp HBC OUT 0 2060 DUM INP A 2070 RETURN 2080 REM 2090 REM READ IN A BUFFER OF 1024 CHARACTERS 2100 REM 2110 FOR X 0 TO 1023 2120 IF INP C AND amp
16. thout limitation any implied warranty or merchantibility or fitness for a particular purpose No amendment of this warranty may be effected except in writing by an officer of the Antona Corporation All repair services shall be performed at the Antona Corporation plant in Los Angeles CA THE PURCHASER MUST OBTAIN A RETURN AUTHORIZATION FROM THE ANTONA CORPORATION PRIOR TO RETURNING ANY PIECE OF EQUIPMENT Shipment to the Antona Corporation will be at the expense of the of the purchaser Return shipment will be at the expense of the Antona Corporation for all warranty repairs 1643 v Westwood Blvd W Los Angeles CA 90024 310 473 8995 FAX 310 473 7112 Table of Contents TO OVE RV TE W sek cvscevctscctencisccdevcsevcsssssovscevetexceesccescdovccescsswucedcsevcsesccecccescdesccescessscedcsevesesccescgescdesccescoasececesewesesecescsedcsewecs 1 NIE CARD INITIALIZATION m 1 12 INTERRUPT OPERATION estere eterne etse Te ere E E i WA TI Ei EESTI IUS E RICE 2 I 3 I O PORT EUNE HON ce 2 1 31 TOPOR ADDRESS N Gack etenim hii ua Q AO a Sul Q Na 2 2 0 CARD GENERAL HARDWARE INFORMATION 3 2 CARD HARDWARE OPTIONS nest ee ette D E eU seh e A tee ox e vay exem ax eode te UR ve ea etes 4 221 0
17. v Westwood Blvd W Los Angeles 90024 310 473 8995 FAX 310 473 7112 5 2 1 1 4 Ribbon Cable Connections J1 The 50 pin I O ribbon cable connector located on the ANC 1055 provides output connection for all 24 lines There is a ground line provided between each signal line and a 5v output line for signal pull up if required The figure below details the port and bit assigned to each pin Port A Bit 0 1 2 Ground Port Bit 1 3 4 Ground Port Bit 2 5 o 6 Ground Port A Bit 3 7 o 8 Ground Port Bit 4 9 10 Ground Port Bit 5 11 12 Ground Port Bit 6 13 o 14 Ground Port A Bit 7 15 16 Ground Port Bit 0 17 18 Ground Port Bit 1 19 o 20 Ground Port Bit 2 21 22 Ground Port Bit 3 23 24 Ground Port Bit 4 25 26 Ground Port Bit 5 27 28 Ground Port Bit 6 29 30 Ground Port Bit 7 31 o 32 Ground Port Bit 0 33 34 Ground Port Bit 1 35 o 36 Ground Port Bit 2 37 38 Ground Port Bit 3 39 40 Ground Port Bit 4 41 42 Ground Port Bit 5 43 44 Ground Port B Bit 6 45 46 Ground Port Bit 7 47 48 Ground 5 Volts fuse
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