PIOD24 Manual - ACCES I/O Products, Inc.
Contents
1. Reading and Loading the Counters If you attempt to read an active counter you will most likely get erroneous data This is partly caused by carries rippling through the counter during the read operation Also the low and high bytes are read sequentially rather than simultaneously and thus it is possible that carries will be propagated from the low to the high byte during the read cycle To circumvent these problems you should perform a counter latch operation in advance of the read cycle To do this load the RW1 and RW2 Counter Control Bits with zeroes This instantly latches the count of the selected counter selected via the SC1 and SCO bits in a 16 bit hold register A subsequent read operation on the selected counter returns the held value Latching is the best way to read an active counter without disturbing the counting process You can only rely on directly read counter data if the counting process is suspended while reading by bringing the gate low or by halting the input pulses For each counter you must specify in advance the type of read or write operation that you intend to perform You have a choice of loading reading a the high byte of the count or b the low byte of the count or c the low byte followed by the high byte Manual MPIOD24 B1a Page 6 9 PIOD24 Manual Counter Programming Examples Using Counter 0 as a Pulse Counter Note that the counters are down counters so when resetting them it s better to lo2. INTO INT2 These bits select the Interrupt Source e o 0 wmmm Ls o9 a eemameng Le a 0 emtee Lua eme La o9 9 eme La o Y cera u O 1 1 o InruptfromBi3ofPot C Clock Source Select These control register bits select the counter clock source for each counter Selection of counter cascading other than as three 16 bit counters will override the counter source selection for the linked counters The clock source bits may be set as follows CKSELO 0 1 CKSEL1 0 1 CKSEL2 0 1 Page 6 8 Counter 0 Clock Source 10 MHz clock External clock applied at pin 28 Counter 1 Clock Source 10 MHz clock 1 MHz clock Counter 2 Clock Source 1 MHz clock External clock applied at pin 31 Manual MPIOD24 B1a Counter Cascading Counters may be linked into 32 or 48 bit depth Counter cascading will override any other counter source selection for counters 1 and 2 CLK1 CLKO Counter Cascading 0 0 3 16 bit counters 0 1 1 16 bit counter Counter 0 and1 32 bit counter Counter 1 cascaded into Counter 2 1 0 1 48 bit counter Counter O cascaded into Counter 1 and Counter 2 1 1 Not Defined Counter Gates The counter gates are tied high through a 10K resistor In this manner the gates are always enabled Counters 0 and 2 may be disabled by bringing the gates to ground at pin 27 Counter Gate 0 and pin 30 Counter Gate 2 Counter Gate 1 has no external access so counter 1 is always enabled
3. Digital Port C Bit 0 17 18 Digital Port C Bit T ae 18 19 Digital Port C Bit 2 hebetes 19 20 Digital Poit C Bil 3 asia eee eis 20 2 Digital Port C Bit 4 snesen ieii 21 22 Digital Port C Bt S iterom 22 23 Digital Port C BWO id 23 24 Digital Port Bit 7 3 iere teens 24 25 Ground Tied to pin 33 25 26 Counter 0 Output 26 27 Counter 0 Gate Inp t 2 una t t e 27 28 Counter O External Clock Input esses 28 29 Counter 2 Output eee N i 29 30 Counter 2 Gate Input e 8000er 30 3 Counter 2 External Clock Input s es 31 32 External Interrupt 0 2 8chsc3s a3 BAeA SARs a8 RR 32 Ground Tied to pin 25 sse 33 No Connections cooooocccnnnocnccnononnnonononanonnnnnnnnnnnnnnnnacnnnnanac nns 34 37 Manual MPIOD24 B1a Page 3 1 PIOD24 Manual Page 3 2 Manual MPIOD24 B1a Chapter 4 Address Selection The PIOD24 base address can be selected anywhere within an I O address range 000 3FF hex providing that the addresses do not overlap with other functions If in doubt refer to the table below for a list of standard address assignments or use the base address locator program FINDBASE provided on CD will assist you to avoid an address conflict The primary and secondary binary synchronous communication ports are supported by the Operating System 0CX OEX 3F0 3F7 3F8 3FF These options cannot be used together addresses overlap Table 4 1 Standard Address A
4. There are no switches or jumpers to set Everything on the PIOD24 card is programmable including address and interrupt level If you have two PCMCIA slots you can plug two PIOD24 in the same Windows based computer DOS or Windows 3 x Installation You must have installed the Card amp Socket Services CSS software that was provided with your PCMCIA capable computer For complete installation instructions refer to readme txt in your PIOD24 software directory DOS Plug N Play or Superclient Installation The SuperClient uses the PIOD24 internal CIS configuration information to configure the card and prepare system for use Consult the SuperClient documentation to determine the installation procedure Windows 95 Installation Windows95 will automatically recognize the installation of the PCMCIA card and provide a list of options to install the card Select the option Driver from disk provided by hardware manufacturer and select the CD provided which will install support for the card Depending on options selected in the Windows95 PCMCIA drivers you may hear a rising two note tone upon successful installation and a new PCMCIA icon in the taskbar tray Page 2 4 Manual MPIOD24 B1a Windows NT 4 0 Installation Windows NT 4 0 is not a Plug and Play operating system so getting the card to work properly requires a few extra steps After physically installing the PIOD24 card into the slot run the Setup exe program included in the software pac
5. cycle will be initiated if the gate input goes high again before the timeout delay has expired i e is re triggerable At the end of the timeout the counter reaches zero and the counter output goes high That output will remain high until re triggered by the gate input Software Triggered Strobe This is similar to Pulse on Terminal Count except that after loading the output goes high and only goes low for one clock period upon timeout Thus a negative strobe pulse is generated a programmed duration after the counter is loaded Hardware Triggered Strobe This is similar to Programmable One Shot except that when the counter is triggered by the gate going high the counter output immediately goes high then goes low for one clock period at timeout producing a negative going strobe pulse The timeout is re triggerable i e a new cycle will commence if the gate goes high before a current cycle has timed out Manual MPIOD24 B1a Page 6 11 PIOD24 Manual Page 6 12 Manual MPIOD24 B1a Customer Comments If you experience any problems with this manual or just want to give us some feedback please email us at manuals accesioproducts com Please detail any errors you find and include your mailing address so that we can send you any manual updates Ya ACCES I O PRODUCTS INC 10623 Roselle Street San Diego CA 92121 Tel 619 550 9559 FAX 619 550 7322 www accesioproducts com
6. should seat in the slot with little pressure Force the PIOD24 card in upside down and you will probably burn out components as well as destroy the key slot Once the card is inserted you may then run the SAMPLEI software to confirm operation of your PIOD24 card Manual MPIOD24 B1a Page 2 5 PIOD24 Manual Page 2 6 Manual MPIOD24 B1a Chapter 3 Cable Connections The PIOD24 requires our CAB PIOD24 cable to provide the transition between the microminiature 32 pin PCMCIA connector and a standard 37 pin D subminiature connector to interface to your project The 37 pin connector is equipped with 4 40 threaded standoffs female screw lock to provide strain relief Pins 34 37 of the cable are not connected PIOD24 Connector CAB PIOD24 Cable Pin Description aro Pin Standard DB 37 Connector 1 Digital Port A Bit 0 sess 1 2 Digital Port A Bit T Lu ueteres 2 3 Digital Port ABELLA es 3 4 Digital Port A Bit 3 arena 4 5 Digital Port A Bit 4 oo eeececeenceeeseeeseneeeeeaeesenaeereaees 5 6 Digital POLA Blin 6 7 Digital Port A Bil 6 55 tette ttt ttt 7 8 Digital Port A Bit 7 esee 8 9 Digital Port B Bit 0 9 10 Digital Port B Bit T unn 10 11 Digital Port B Bit 2 seen 11 12 Digital Port B Bit 3 seen 12 13 Digital Port B Bit 4 ennenen 13 14 Digital Pott B Bit Suances 14 15 Digital Port B BMO oct teet et ee 15 16 Digital Port B Bit7 5 3 85 oerte ees 16 17
7. be used to say hello to an installed modem ACCES32 This directory contains the Windows 95 98 NT driver used to provide access to the hardware registers when writing 32 bit Windows software Several samples are provided in a variety of languages to demonstrate how to use this driver The DLL provides four functions InPortB OutPortB InPort and OutPort to access the hardware This directory also contains the device driver for Windows NT ACCESNT SYS This device driver provides register level hardware access in Windows NT Two methods of using the driver are available through ACCES32 DLL recommended and through the DeviceIOControl handles provided by ACCESNT SYS slightly faster Page 2 2 Manual MPIOD24 B1a SAMPLES Samples for using ACCES32 DLL are provided in this directory Using this DLL not only makes the hardware programming easier MUCH easier but also one source file can be used for both Windows 95 98 and WindowsNT One executable can run under both operating systems and still have full access to the hardware registers The DLL is used exactly like any other DLL so it is compatible with any language capable of using 32 bit DLLs Consult the manuals provided with your language s compiler for information on using DLLs in your specific environment VBACCES This directory contains sixteen bit DLL drivers for use with VisualB ASIC 3 0 and Windows 3 1 only These drivers provide four functions similar to the ACCES32 DLL However thi
8. card on the internal ISA bus Manual MPIOD24 B1a Page 1 1 PIOD24 Manual Calibration and Service No calibration is required for PCMCIA devices and especially for the all digital PIOD24 The case may not be opened and there are no parts inside which you can service There are no socketed components Opening the PIOD24 case will void your warranty If your unit requires service please return it to ACCES Please call ACCES for an RMA number before returning the card for service even if under warranty Utility Software We include programs on CD to support the card and to help you develop your application program s The card supports I O bus addresses from 000 to 3FF hex and a program called FINDBASE helps you find an open base address to use with the card The TSR client program has two required command line parameters entered in hexadecimal format the base I O address and the interrupt request IRQ number Optionally a verbose switch will turn on a detailed report of the communication between the TSR and the PCMCIA card for diagnostic troubleshooting A value of zero for the IRQ number will configure the card not to use any interrupts Syntax PIOD24 Base Address in Hex IRQ number in Hex verbose For example PIOD24 300 OA verbose Would configure the PIOD24 card at a base address of 300 hex and IRQ at 10 decimal If invalid values are used with the TSR program then the following error message is displayed The command
9. line parameters were incorrect syntax piod24 lt port address gt lt IRQ gt example piod24 1205 example piod24 300 0A If no values are used with the TSR program then the program reads the CIS information from the PIOD24 and attempts to automatically configure address and IRQ Page 1 2 Manual MPIOD24 B1a Specifications Features e 24 channels of unbuffered digital input output Four and Eight bit groups independently selectable for I O e Mode 1 and 2 Bi directional and strobed I O data transfers supported Interrupt and Interrupt disable capability e External and internal interrupt and counter source capacity e Three 16 bit counter timers Digital Inputs Outputs Logic High 2 0 to 7 0 VDC e Logic Low 0 3 to 0 8 VDC Input Load Hi 13 2 microamperes Input Load Lo 250 microamperes e Max Drive 5 LSTTL Loads Counters Number Three e Type 16 bit 65535 counts e Frequency 10 MHz Max Internal or external source e Output High 2 4 V Min 250 mA e Output Low 2 0 V Min 7 3 Max Interrupt Level 2 6 7 10 15 set by CFG configuration file e Enable Programmable e Trigger External or Internal Environmental e Operating Temperature Range 0 C to 60 C e Storage Temperature Range 50 C to 120 C Humidity 596 to 9596 non condensing e Power Required 5 VDC 47 mA Typical 65 mA Max e Size Type II PCMCIA card slot Manual MPIOD24 B1a Page 1 3 PIOD24 Manual Re
10. square wave mode Counter 0 can also be used to measure pulse width or half period of a periodic signal The signal should be applied to the gate input of Counter 0 and a known frequency applied to the Counter 0 clock input During the interval when the gate input is low Counter 0 is loaded with a full count of 65 535 When the gate input goes high the counter begins decrementing until the gate input goes back low at the end of the pulse The counter is then read and the change in counts is a linear function of the duration of the gate input signal If Counter 0 receives 10 microsecond duration clock pulses 100 KHz the maximum pulse duration that can be measured is 65 535 10 5 655 milliseconds Page 6 10 Manual MPIOD24 B1a Generating Time Delays There are four methods of using Counter 0 to generate programmable time delays Pulse on Terminal Count After loading the counter output goes low Counting is enabled when the gate goes high The counter output will remain low until the count reaches zero at which time the counter output goes high The output will remain high until the counter is reloaded by a programmed command If the gate goes low during countdown counting will be disabled as long as the gate input is low Programmable One shot The counter need only be loaded once The time delay is initiated when the gate input goes high At this point the counter output goes low If the gate input goes low counting continues but a new
11. ACCES I O PRODUCTS INC 10623 Roselle Street San Diego CA 92121 TEL 858 550 9559 FAX 858 550 7322 MODEL PIOD24 USER MANUAL FILE MPIOD24 B1a Notice The information in this document is provided for reference only ACCES does not assume any liability arising out of the application or use of the information or products described herein This document may contain or reference information and products protected by copyrights or patents and does not convey any license under the patent rights of ACCES nor the rights of others IBM PC PC XT and PC AT are registered trademarks of the International Business Machines Corporation Printed in USA Copyright 2001 by ACCES I O Products Inc 10623 Roselle Street San Diego CA 92121 All rights reserved U S Patent No s 4 603 320 and 4 972 470 Page iii Warranty Prior to shipment ACCES equipment is thoroughly inspected and tested to applicable specifications However should equipment failure occur ACCES assures its customers that prompt service and support will be available All equipment originally manufactured by ACCES which is found to be defective will be repaired or replaced subject to the following considerations Terms and Conditions If a unit is suspected of failure contact ACCES Customer Service department Be prepared to give the unit model number serial number and a description of the failure symptom s We may suggest some simple tests to confirm the failure We wi
12. ad them with a full count value of 65 535 In order to read the number of input pulses that have been applied read back the counter as shown in the following paragraph and subtract that reading from the original loaded value outportb BASEADDRESS 7 0x30 counter 0 mode 0 outportb BASEADDRESS 4 0xff counter 0 low load byte outportb BASEADDRESS 4 0xff counter O high load byte Reading Counter 0 outportb BASEADDRESS 7 0x30 counter 0 latch command read in both bytes of the latched value and combine into an integer value inportb BASEADDRESS 4 inportb BASEADDRESS 4 256 Generating Square Waves of Programmed Frequency Frequency of output is a direct function of the frequency of the clock input and of the count loaded into the counter The minimum count or divisor is 2 and the maximum is 65535 Calculating what divisor to use for a specific output frequency is straightforward If for example you desire a 2000 Hz output and your clock source is 10 MHz divide it by 2000 and find that the count loaded into counter 0 should be 5000 Measuring Frequency and Period The two previous sections show how to count pulses and generate output frequencies It is also possible to measure frequency by raising the gate input of Counter 0 for a known time interval and counting the number of clock pulses accumulated for that interval The gating signal can be derived from Counters 1 and 2 operating in a
13. ation The easiest way to make a backup copy is to use the DOS DISKCOPY utility In a single drive system the command is den id ei al a al You will need to swap disks as requested by the system In a two disk system the command is cada I I T This will copy the contents of the master disk in drive A to the backup disk in drive B Manual MPIOD24 B1a Page 2 1 PIOD24 Manual To copy the files on the master diskette to your hard disk perform the following steps a Place the master diskette into a floppy drive b Change the active drive to the drive that has the diskette installed For example if the diskette is in drive A type HAIZ c Type 2J2 2J2J2J2J2 2J and follow the on screen prompts Directories Created on the Hard Disk The installation process will create several directories on your hard disk If you accept the installation defaults the following structure will exist CARDNAME Root or base directory containing the SETUP EXE setup program used to help you configure jumpers and calibrate the card DOS PSAMPLES A subdirectory of CARDNAME that contains Pascal samples DOS CSAMPLES A subdirectory of CARDNAME that contains C samples Win32 language Subdirectories containing samples for Win95 98 and NT WinRisc exe A Windows dumb terminal type communication program designed for RS422 485 operation Used primarily with Remote Data Acquisition Pods and our RS422 485 serial communication product line Can
14. dard expansion slot was recognized and the second release added hardware support for I O devices The PIOD24 is one of a family of PCMCIA devices offered that extend the ports and functionality of PC systems This expansion port may be referred on your computer system as either a PCMCIA or PC CARD port Software Compatibility Drivers and example programs are supplied with the PIOD24 in a variety of programming languages and operating systems including DOS 16 bit and 32 bit Windows Windows 3 x vs Windows 95 and Windows NT Many packaged application programs support similar cards but to use the full functionality requires a customized driver Please call ACCES to acquire the appropriate driver or DLL for your program Card and Socket Services PCMCIA Card and Socket services must be loaded on the host computer system before using the PIOD24 card and is typically supplied by the PCMCIA slot provider the laptop or adaptor manufacturer to provide the software interface to the card slot drive In addition our TSR memory resident program described below is required to configure the card once it is recognized by the card and socket services The Card and Socket services handle the PCMCIA slot software interface with your operating system when a new card is inserted or removed or when power is applied or upon shut down Once the PCMCIA Card and Socket Services recognizes the PIOD24 card it will then appear to your application software like a
15. ein a There are two 8 bit ports A and B and two 4 bit ports C Hi and C Lo b Any port can be configured as an input or an output c Outputs are latched d Inputs are not latched Mode 1 is used for strobed input output In this mode Port A and Port B use the lines of Port C to generate and accept control signals associated with data transfer Mode 2 is used for bi directional eight bit bus applications Manual MPIOD24 B1a Page 6 1 PIOD24 Manual The control register at base address 3 is a write only 8 bit register It is used to set the mode and direction of the ports At Power Up or Reset all I O lines are set as inputs The PPI should be configured during initializing by writing to the control register even if the ports are only going to be used as inputs Bit assignments in the control register are as follows po rene tet cow bi mes reme os omar po Mode seein re Mote Mode 0 ol D1 D2 D3 D4 D7 PnC CECT Ee eg ST TT 1777 EEE EA Mode Set Flag 1 Active Table 6 2 8255 Control Register Bit Assignments Note In Mode 0 do not use the control register byte for the individual bit control feature The hardware uses the I O bits to control buffer direction on this card The control register should only be used for setting up input and output of the ports and enabling the buffer Programming Example The following example in BASIC is provided as a guide to assist you in developing y
16. gulatory Compliance e FCC Part 15 Level A Designed to meet e CE Certification not completed at print time e Please check with us for certification status Page 1 4 IRQ AND PCMCIA BUS 8255 DIGITAL 1 0 CHIP EXTERNAL OUTPUT CONNECTOR Figure 1 1 PIOD24 Block Diagram Manual MPIOD24 B1a Chapter 2 Installation The software provided with this card is contained on either one CD or multiple diskettes and must be installed onto your hard disk prior to use To do this perform the following steps as appropriate for your software format and operating system Substitute the appropriate drive letter for your CD ROM or disk drive where you see d or a respectively in the examples below CD Installation DOS WIN3 x 1 Place the CD into your CD ROM drive 2 Type 2712 to change the active drive to the CD ROM drive 3 Type Jal to run the install program 4 Follow the on screen prompts to install the software for this card WIN95 98 NT a Place the CD into your CD ROM drive b The CD should automatically run the install program after 30 seconds If the install program does not run click START RUN and type d install click OK or press Y e Follow the on screen prompts to install the software for this card 3 5 Inch Diskette Installation As with any software package you should make backup copies for everyday use and store your original master diskettes in a safe loc
17. independent 16 bit presettable down counters Each counter can be programmed to any count as low as 1 or 2 and up to 65 535 in binary format depending on the mode chosen Manual MPIOD24 B1a Page 6 3 PIOD24 Manual Operational Modes The 82C54 modes of operation are described in the following paragraphs to familiarize you with the versatility and power of this device For those interested in more detailed information a full description of the 82C54 programmable interval timer can be found in the Intel or equivalent manufacturers data sheets The following conventions apply for use in describing operation of the 82C54 Clock A positive pulse into the counter s clock input Trigger A rising edge input to the counter s gate input Counter Loading Programming of a binary count into the counter Mode 0 Pulse on Terminal Count After the counter is loaded the output is set low and will remain low until the counter decrements to zero The output then goes high and remains high until a new count is loaded into the counter A trigger enables the counter to start decrementing Mode 1 Retriggerable One shot The output goes low on the clock pulse following a trigger to begin the one shot pulse and goes high when the counter reaches zero Additional triggers result in reloading the count and starting the cycle over If a trigger occurs before the counter decrements to zero a new count is loaded Thus this forms a re triggerable one shot In m
18. kage This program will create an entry in the PCMCIA Database allowing Windows NT 4 0 to recognize the PIOD24 After running Setup exe the system must be rebooted for the changes to take effect The device should then show up in the PC Card PCMCIA Control Panel where its resource assignments can be found Although manual modification of the Registry should not be necessary the steps necessary to duplicate the actions performed by Setup exe are documented here for informational purposes After starting Regedit navigate to the following key HKEY_LOCAL_MACHINE System CurrentControlSet Services Pcmcia Database Add a new subkey named ACCES I O Products then add a new subkey to the ACCES I O Products key you just created named PIOD24 In the PIOD24 key add a new string with the name Driver and the value piod24 This completes the modifications necessary for Windows NT 4 0 to recognize the PIOD24 card The system must then be rebooted for the changes to take effect Caution The PIOD24 must be oriented with the label side up or side A in PCMCIA terms The standard PCMCIA case is keyed to prevent improper insertion but may be broken off if excessive force is used during installation Do Not Force the PIOD24 Card into the Slot Install the card with the label facing up or towards side A which is usually towards the keyboard but you should check with your systems owners manual When correctly oriented the PIOD24 card
19. ll assign a Return Material Authorization RMA number which must appear on the outer label of the return package All units components should be properly packed for handling and returned with freight prepaid to the ACCES designated Service Center and will be returned to the customer s user s site freight prepaid and invoiced Coverage First Three Years Returned unit part will be repaired and or replaced at ACCES option with no charge for labor or parts not excluded by warranty Warranty commences with equipment shipment Following Years Throughout your equipment s lifetime ACCES stands ready to provide on site or in plant service at reasonable rates similar to those of other manufacturers in the industry Equipment Not Manufactured by ACCES Equipment provided but not manufactured by ACCES is warranted and will be repaired according to the terms and conditions of the respective equipment manufacturer s warranty General Under this Warranty liability of ACCES is limited to replacing repairing or issuing credit at ACCES discretion for any products which are proved to be defective during the warranty period In no case is ACCES liable for consequential or special damage arriving from use or misuse of our product The customer is responsible for all charges caused by modifications or additions to ACCES equipment not approved in writing by ACCES or if in ACCES opinion the equipment has been subjected to abnormal use Abnormal use for purp
20. ode 1 a low output pulse is provided with a period equal to the counter count down time Mode 2 Rate Generator This mode provides a divide by N capability where N is the count loaded into the counter When triggered the counter output goes low for one clock period after N counts reloads the initial count and the cycle starts over This mode is periodic the same sequence is repeated indefinitely until the gate input is brought low This mode also works well as an alternative to mode 0 for event counting Mode 3 Square Wave Generator This mode operates periodically like mode 2 The output is high for half of the count and low for the other half If the count is even then the output is a symmetrical square wave If the count is odd then the output is high for N 1 2 counts and low for N 1 2 counts Periodic triggering or frequency synthesis are two possible applications for this mode Note that in this mode to achieve the square wave the counter decrements by two for the total loaded count then reloads and decrements by two for the second part of the wave form Mode 4 Software Triggered Strobe This mode sets the output high and when the count is loaded the counter begins to count down When the counter reaches zero the output will go low for one input period The counter must be reloaded to repeat the cycle A low gate input will inhibit the counter Page 6 4 Manual MPIOD24 B1a Mode 5 Hardware Triggered Strobe In this mode the c
21. om drivers for specific needs Samples are provided to demonstrate the use of the generic driver Note that the use of IRQs in near real time data acquisition programs requires multi threaded application programming techniques and must be considered an intermediate to advanced programming topic Delphi C Builder and Visual C samples are provided Manual MPIOD24 B1a Page 2 3 PIOD24 Manual Findbase exe DOS utility to determine an available base address for ISA bus non Plug n Play cards Run this program once before the hardware is installed in the computer to determine an available address to give the card Once the address has been determined run the setup program provided with the hardware to see instructions on setting the address switch and various option selections Poly exe A generic utility to convert a table of data into an nth order polynomial Useful for calculating linearization polynomial coefficients for thermocouples and other non linear sensors Risc bat A batch file demonstrating the command line parameters of RISCTerm exe RISCTerm exe A dumb terminal type communication program designed for RS422 485 operation Used primarily with Remote Data Acquisition Pods and our RS422 485 serial communication product line Can be used to say hello to an installed modem RISCTerm stands for Really Incredibly Simple Communications TERMinal Installing the Card The PIOD24 card can be installed in any PCMCIA Type II card slot
22. oses of this warranty is defined as any use to which the equipment is exposed other than that use specified or intended as evidenced by purchase or sales representation Other than the above no other warranty expressed or implied shall apply to any and all such equipment furnished or sold by ACCES Page iv Table of Contents NOTICE en ct a ta ie a te ena ea cae ers oes Roe iii Warranty Sct ba Dirt Siok oe Duende Di Cine iv Chapter 1 Introduction ars rer exe E moa es 1 1 Software Compatibility c s kM ce tai ave Cee he eh o a t eos 1 1 Card and Socket SerVvicas cocos Une au Salsa aa daa de de bead REG ae dea e es 1 1 Calibration and SO WISE x t Meee IAEA A Ras 1 2 Utility Software aisa EE E 1 2 Specifications a he rptu b rct A eee ae edu D ire 1 3 Chapter 2 Installation iu 0 00 0 0 0 na ee ee ee a Rn a n 2 1 CD Installation ius et ER er Re Eur 2 1 3 5 Inch Diskette Installation 00020 ee 2 1 Directories Created on the Hard Disk 0000 ee 2 2 Installing the Card a cts Os MEL TE 2 4 Chapter 3 Cable Connections 0 0c eee eee eee eee 3 1 Chapter 4 Address Selection 0 20 ce ee eee eee eee 4 1 Chapter 5 Software i iccc tei esos s ra 5 1 Chapter 6 Programming 0000 e eee eee eee eee 6 1 Developing Your Application Software 0 0 seen rennen ee 6 1 Digital VO POM wut thee ias Gee ae Bene Bea ete See a 6 1 Programming EXampls i ien I um E E 6 2 Prog
23. ounter will start counting after the rising edge of the trigger input and will go low for one clock period when the terminal count is reached The counter is retriggerable The output will not go low until the full count after the rising edge of the trigger Counter Timer Registers Base 4 Write Read Counter 0 When writing this register is used to load a counter value into the counter The transfer is either a single or double byte transfer depending on the control byte written to the counter control register at Base Address 7 If a double byte transfer is used then the least significant byte of the 16 bit value is written first followed by the most significant byte When reading the current count of the counter is read The type of transfer is also set by the control byte Base 5 Write Read Counter 1 See description for Base 4 Write Read Base 6 Write Read Counter 2 See description for Base 4 Write Read Base 7 Write Counter Control Register The control byte specifies the counter to be programmed the counter mode the type of read write operation and the modulus The control byte format is as follows Counter Control Byte ar Is Ts fo fs SC0 SC1 These bits select the counter modified by the counter control byte lo 0 ProgramcounterO Do 1 Program Gomer 1 EEE Te Manual MPIOD24 B1a Page 6 5 PIOD24 Manual RWO0 RW1 These bits select the read write mode of the selected counter Co
24. our working software In this example the card address is 2DO hex operation is in Mode 0 and the I O lines are to be set up as follows Port A Input Port C Hi Input Port B Output Port C Lo Output Page 6 2 Manual MPIOD24 B1a Configure bits of the control register as follows Dl DO 0 0 l N D7 D D5 D4 D3 D2 1 0 0 1 1 0 ON Nn Port C Lo Output Port B Output Mode 0 Port C Hi Input Port A Input Mode 0 l l l l l Active Mode Set This corresponds to 98 hex If the card address is 2DO hex use the BASIC OUT command to write to the control register as follows BASE 0x2C0 OUTPORTB BASEA 3 0x98 To read the inputs at Port A and the upper nybble of Port C X INPORTB BASE Read Port A Y INPORTB BASE 2 amp OxFO Read Port C Hi To set outputs high 1 at Port B and the lower nybble of Port C OUTPORTB BASE 1 0xFF Turn on all Port B bits OUTPORTB BASE 2 OxF Turn on all bits of Port C lower nybble Programmable Interval Timer The PIOD24 contains a type 82C54 programmable counter timer which allows you to implement such functions as a Real Time Clock Event Counter Digital One Shot Programmable Rate Generator Square Wave Generator Binary Rate Multiplier Complex Wave Generator and or a Motor Controller The 82C54 is a flexible but powerful device that consists of three
25. rammable Interval Timer nnana aana 6 3 Operational MOd S amerita its een ee dee 6 4 Counter Timer Registers 1o eee on P E Hr 6 5 Counter Source EHRE er dc reta ct UP cem Dele o OU eas Oy tentis 6 7 Clock Source Select ceu coc deu lest c dM LM EAM AD MAII 6 8 Counter Cascading x uns acne e ken Rome ee nae kite dana ed Ane e Re Dale 6 9 BOUNIEr Gatese ud use im EE EE NOR P MEER Bio Eq Ee i s PO qu E Ru 6 9 Reading and Loading the Counters 000 eee 6 9 Counter Programming Examples oooocccoccoo eee 6 10 Page v Figure 1 1 Table 4 1 Table 6 1 Table 6 2 Page vi List of Figures PIOD24 Block Diagram waere dena dh gas ede meen List of Tables Standard Address Assignments for PC and PC XT Computers PIOD24 Register Address Selection 0 0 ccc tees 6 1 8255 Control Register Bit Assignments Chapter 1 Introduction Features Type II PCMCIA Card Plug N Play Windows 95 98 Installation 24 Bit Digital I O port Four and eight bit groups independently selectable for digital I O Mode 1 and 2 Bi directional and strobed data transfers supported Three 16 bit 10MHz counters Software setup including FINDBASE and TSR setup program 37 pin D sub Male Connector via cable adaptors Supports external counter clocks gates and outputs and internal control Introducing PCMCIA PCMCIA started as a way to add extra memory to laptop and portable computers As the market grew the absence of a stan
26. s DLL is only compatible with 16 bit executables Migration from 16 bit to 32 bit is simplified because of the similarity between VBACCES and ACCES32 PCI This directory contains PCI bus specific programs and information If you are not using a PCI card this directory will not be installed SOURCE A utility program is provided with source code you can use to determine allocated resources at run time from your own programs in DOS PCIFind exe A utility for DOS and Windows to determine what base addresses and IRQs are allocated to installed PCI cards This program runs two versions depending on the operating system Windows 95 98 NT displays a GUI interface and modifies the registry When run from DOS or Windows3 x a text interface is used For information about the format of the registry key consult the card specific samples provided with the hardware In Windows NT NTioPCI SYS runs each time the computer is booted thereby refreshing the registry as PCI hardware is added or removed In Windows 95 98 NT PCIFind EXE places itself in the boot sequence of the OS to refresh the registry on each power up This program also provides some COM configuration when used with PCI COM ports Specifically it will configure compatible COM cards for IRQ sharing and multiple port issues WIN32IRQ This directory provides a generic interface for IRQ handling in Windows 95 98 NT Source code is provided for the driver greatly simplifying the creation of cust
27. ssignments for PC and PC XT Computers Manual MPIOD24 B1a Page 4 1 PIOD24 Manual Page 4 2 Manual MPIOD24 B1a Chapter 5 Software There are sample programs provided with the PIOD24 Digital I O Card in C Pascal QuickBASIC and several Windows languages DOS samples are located in the DOS directory and Windows samples are located in the WIN32 directory Manual MPIOD24 B1a Page 5 1 PIOD24 Manual Page 5 2 Manual MPIOD24 B1a Chapter 6 Programming Developing Your Application Software Once the Card amp Socket Services CSS and Client Drivers are installed the PIOD24 card may be controlled by writing to and reading from the control registers Port Addresses and Functions All I O accesses may be performed as bytes The registers in eight bit format are presented here Base Address 4 82C54 Counter 0 Load Counter 0 Read back Base Address 5 82C54 Counter 1 Load Counter 1 Read back Base Address 6 82C54 Counter 2 Load Counter 2 Read back Base Address 7 82C54 Counter Control Write Only Base Address 8 Interrupt amp Clock Source Write Only Table 6 1 PIOD24 Register Address Selection Digital I O Port The PIOD24 card supports operating mode 0 of the 82C55 PPI However it can be factory modified to accommodate either mode 1 or 2 Before attempting to use either of those modes check to assure that the card was ordered with the appropriate modification included Mode 0 is the most frequently used mode of operation wher
28. unter Read Write Function o fo Counter Latch Command o oro remnmmersne MEN Read Write MS Byte Read Write LS Byte then MS Byte MO0 M2 These bits set the operational mode of the selected counter BCD Set the selected counter to count in Binary Coded Decimal or straight Binary BCD 1 selects BCD mode BCD 0 selects straight binary coding Base 8 Write Interrupt and Clock Source Control Because of the limited number of pins on the 32 pin connector all signals from all three counters are not available externally This is compensated for by the ability to chain counters and control the count source Bit 0 and 3 of port C are the outputs of the 82C55 programmed in Mode 1 or Mode 2 These two modes provide an interrupt control of closely coupled parallel interfaces To program an 82C55 for Mode 1 or 2 you will need to consult the 82C55 data sheet Page 6 6 Manual MPIOD24 B1a Counter Source Control The counters on the PIDO24 have quite a bit of programmability Due to the architecture of the board there is additional counter source and chaining flexibility beyond the standard functions of the 82C54 The diagram shows schematically the programmable options EXCLK2 PIN 31 EXCLKO PIN 28 5 5 5 GATE2 PIN 30 GATEO PIN 27 OUT2 PIN 29 Manual MPIOD24 B1a Page 6 7 PIOD24 Manual The Interrupt and Clock Source Control byte format is as follows C9 Is Is fo Ts
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