National Instruments PC-DIO-96 - Manuals

© National Instruments Corporation ix PC-DIO-96 User Manual About This Manual This manual describes the mechanical and electrical aspects of the PC -DIO-96 and containsinformation concerning its operation and programming. The PC -DIO-96 is a 96-bit paralleldigital I/O interface designed around four ...

Preface PC-DIO-96 User Manual x © National Instruments Corporation • The Glossary contains an alphabetical list and description of terms used in this manual,including abbreviations, acronyms, metric prefixes, mnemonics, symbols, and terms. • The Index alphabetically lists the topics in this manual, ...

Preface © National Instruments Corporation xi PC-DIO-96 User Manual National Instruments Documentation The PC-DIO-96 User Manual is one piece of the documentation set for your data acquisition(DAQ) system. You could have any of several types of manuals, depending on the hardware andsoftware in your ...

© National Instruments Corporation 1-1 PC-DIO-24 User Manual Chapter 1Introduction This chapter describes the PC -DIO-96, lists what you need to get started, describes softwareprogramming choices, optional equipment, and custom cables, and explains how to unpack thePC -DIO-96. About the PC -DIO -96 ...

Introduction Chapter 1 PC-DIO-24 User Manual 1-2 © National Instruments Corporation What You Need to Get Started To set up and use your PC -DIO-96, you will need the following: PC -DIO-96 board PC-DIO -96 User Manual One of the following software packages and documentation: NI -DAQ for PC compatible...

Chapter 1 Introduction © National Instruments Corporation 1-3 PC-DIO-24 User Manual NI -DAQ Driver Software The NI-DAQ driver software is included at no charge with all National Instruments DAQhardware. NI-DAQ is not packaged with SCXI or accessory products, except for the SCXI -1200.NI -DAQ has an ...

Introduction Chapter 1 PC-DIO-24 User Manual 1-4 © National Instruments Corporation Register-Level Programming The final option for programming any National Instruments DAQ hardware is to write register-level software. Writing register-level programming software can be very time-consuming andineffic...

Chapter 1 Introduction © National Instruments Corporation 1-5 PC-DIO-24 User Manual The CB -100 is useful for initial prototyping of an application or in situations where PC-DIO-96interconnections are frequently changed. Once a final field wiring scheme has been developed,however, you may want to de...

© National Instruments Corporation 2-1 PC-DIO-96 User Manual Chapter 2Configuration and Installation This chapter describes the PC -DIO-96 jumper configurations, installing the PC-DIO -96 board inyour computer, signal connections to the PC -DIO-96 board, and cabling instructions. Board Configuration...

Configuration and Installation Chapter 2 PC-DIO-96 User Manual 2-2 © National Instruments Corporation W1 U26 Figure 2-1. PC -DIO-96 Parts Locator Diagram Base I/O Address Settings The base I/O address for the PC-DIO -96 is determined by the switches at position U26 (seeFigure 2-1). The switches are ...

Configuration and Installation Chapter 2 PC-DIO-96 User Manual 2-4 © National Instruments Corporation Table 2-2. Switch Settings with Corresponding Base I/O Address and Base I/O Address Space Switch Setting Base I/O Address Base I/O Address A9 A8 A7 A6 A5 (hex) Space Used (hex) 0 0 0 0 0 000 000 - 0...

Chapter 2 Configuration and Installation © National Instruments Corporation 2-5 PC-DIO-96 User Manual Interrupt Level Selection There is one set of jumpers for interrupt selection on the PC -DIO-96 board. W1 is used forselecting the interrupt level. The location of this jumper is shown in Figure 2 -...

Configuration and Installation Chapter 2 PC-DIO-96 User Manual 2-6 © National Instruments Corporation 4. Insert the PC -DIO-96 in an unused 8 -bit, 16-bit, or 32 -bit slot. It may be a tight fit, but donot force the board into place. 5. Screw the mounting bracket of the PC-DIO -96 to the back panel ...

Chapter 2 Configuration and Installation © National Instruments Corporation 2-7 PC-DIO-96 User Manual I/O Connector Pin Description Figure 2-4 shows the pin assignments for the PC -DIO -96 digital I/O connector. 50 100 49 99 48 98 47 97 46 96 45 95 44 94 43 93 42 92 41 91 40 90 39 89 38 88 37 87 36 ...

Configuration and Installation Chapter 2 PC-DIO-96 User Manual 2-8 © National Instruments Corporation I/O Connector Signal Connection Descriptions Pin Signal Name Description 1, 3, 5, 7, 9, 11, 13,15 APC<7..0> Bidirectional Data Lines for Port C of PPI A—APC7 is theMSB, APC0 the LSB. 17, 19, 2...

Chapter 2 Configuration and Installation © National Instruments Corporation 2-9 PC-DIO-96 User Manual Warning: During programming, note that each time a port is configured, output ports Aand C are reset to 0, and output port B is undefined. Table 2-3. Port C Signal Assignments Programming Mode Group...

Configuration and Installation Chapter 2 PC-DIO-96 User Manual 2-10 © National Instruments Corporation +5 V APA0 APA1 APA2 APA3 APA4 APA5 APA6 APA7 APB0 APB1 APB2 APB3 APB4 APB5 APB6 APB7 APC0 APC1 APC2 APC3 APC4 APC5 APC6 APC7 GND BPA1 BPA2 BPA4 BPA5 BPA6 BPA7 BPA0 BPA3 BPB0 BPB1 BPB2 BPB3 BPB4 BPB...

Chapter 2 Configuration and Installation © National Instruments Corporation 2-11 PC-DIO-96 User Manual +5 V CPA0 CPA1 CPA2 CPA3 CPA4 CPA5 CPA6 CPA7 CPB0 CPB1 CPB2 CPB3 CPB4 CPB5 CPB6 CPB7 CPC0 CPC1 CPC2 CPC3 CPC4 CPC5 CPC6 CPC7 GND DPA1 DPA2 DPA4 DPA5 DPA6 DPA7 DPA0 DPA3 DPB0 DPB1 DPB2 DPB3 DPB4 DPB...

Configuration and Installation Chapter 2 PC-DIO-96 User Manual 2-12 © National Instruments Corporation Digital I/O Signal Connections Pins 1 through 48 and pins 51 through 98 of the I/O connector are digital I/O signal pins. Thefollowing specifications and ratings apply to the digital I/O lines. Abs...

Chapter 2 Configuration and Installation © National Instruments Corporation 2-13 PC-DIO-96 User Manual GND PC-DIO-96 Board Switch I/O Connector +5 V +5 V LED TTL Signal PPI A Port A APA<3..0> PPI C Port B CPB<7..4> 41 43 45 47 67 71 73 69 50, 100 Figure 2-7. Digital I/O Connections In Fi...

Configuration and Installation Chapter 2 PC-DIO-96 User Manual 2-14 © National Instruments Corporation Timing Specifications This section lists the timing specifications for handshaking with the PC -DIO-96. Thehandshaking lines STB* and IBF synchronize input transfers. The handshaking lines OBF* and...

Chapter 2 Configuration and Installation © National Instruments Corporation 2-15 PC-DIO-96 User Manual Mode 1 Input Timing The following figure illustrates the timing specifications for an input transfer in mode 1. T3 T5 T6 T7 T4 T1 T2 STB* IBF INTR RD* DATA Name Description Minimum Maximum T1 STB* ...

Configuration and Installation Chapter 2 PC-DIO-96 User Manual 2-16 © National Instruments Corporation Mode 1 Output Timing The following figure illustrates the timing specifications for an output transfer in mode 1. T2 T3 WR* OBF* INTR DATA T4 T6 T5 ACK* T1 Name Description Minimum Maximum T1 WR* =...

Chapter 2 Configuration and Installation © National Instruments Corporation 2-17 PC-DIO-96 User Manual Mode 2 Bidirectional Timing The following figure illustrates the timing specifications for bidirectional transfers in mode 2. T2 T1 WR* OBF* INTR ACK* DATA T6 T7 T3 T4 T10 STB* T9 T8 T5 IBF RD* Nam...

Theory of Operation Chapter 3 PC-DIO-96 User Manual 3-2 © National Instruments Corporation Data Transceivers The data transceivers control the sending and receiving of data to and from the PC I/O channel. PC I/O Channel Control Circuitry The base address used by the board is determined by an onboard...

Chapter 3 Theory of Operation © National Instruments Corporation 3-3 PC-DIO-96 User Manual handshaking circuitry; however, either of these two lines can be configured for input and used asexternal interrupts. An interrupt occurs on the low-to-high transition of the signal line. Refer toChapter 4, Re...

© National Instruments Corporation 4-1 PC-DIO-96 User Manual Chapter 4Register-Level Programming This chapter describes in detail the address and function of each of the PC -DIO-96 control andstatus registers. This chapter also includes important information about register-levelprogramming the PC -D...

Register-Level Programming Chapter 4 PC-DIO-96 User Manual 4-2 © National Instruments Corporation Register Map The following table lists the address map for the PC -DIO-96. Table 4-1. PC -DIO-96 Address Map Register Name Offset Address Size Type (Hex) 82C55A Register Group PPI A PORTA Register 00 8-...

Chapter 4 Register-Level Programming © National Instruments Corporation 4-3 PC-DIO-96 User Manual Register Descriptions The register descriptions for the devices on the PC -DIO-96, including the 82C55A, the 8253, andeach of the interrupt control registers, are given on the pages that follow. Registe...

Register-Level Programming Chapter 4 PC-DIO-96 User Manual 4-4 © National Instruments Corporation Warning: During programming, note that each time a port is configured, output ports Aand C are reset to 0, and output port B is undefined. Table 4-2 shows the control words for setting or resetting each...

Chapter 4 Register-Level Programming © National Instruments Corporation 4-5 PC-DIO-96 User Manual Register Description for the Interrupt Control Registers There are two interrupt control registers on the PC -DIO-96. One of these registers has individualenable bits for the two interrupt lines from ea...

Register-Level Programming Chapter 4 PC-DIO-96 User Manual 4-6 © National Instruments Corporation Interrupt Control Register 1 D7 D6 D5 D4 D3 D2 D1 D0 DIRQ1 DIRQ0 CIRQ1 CIRQ0 BIRQ1 BIRQ0 AIRQ1 AIRQ0 Bit Name Description 7 DIRQ1 PPI D Interrupt Request for Port B—If this bit and the INTEN bitin Inter...

Chapter 4 Register-Level Programming © National Instruments Corporation 4-7 PC-DIO-96 User Manual Bit Name Description (continued) 1 AIRQ1 PPI A Interrupt Request for Port B—If this bit and the INTEN bitin Interrupt Control Register 2 are both set, PPI A sends aninterrupt, INTRB, to the host compute...

Register-Level Programming Chapter 4 PC-DIO-96 User Manual 4-8 © National Instruments Corporation Interrupt Control Register 2 D7 D6 D5 D4 D3 D2 D1 D0 X X X X X INTEN CTRIRQ CTR1 Bit Name Description 7–3 X Don’t Care Bit. 2 INTEN Global Interrupt Enable Bit—If this bit is set, the PC-DIO -96 caninte...

Chapter 4 Register-Level Programming © National Instruments Corporation 4-9 PC-DIO-96 User Manual Programming Considerations for the 82C55A Modes of Operation for the 82C55A The three basic modes of operation for the 82C55A are as follows: • Mode 0—Basic I/O • Mode 1—Strobed I/O • Mode 2—Bidirection...

Register-Level Programming Chapter 4 PC-DIO-96 User Manual 4-10 © National Instruments Corporation Mode 2 This mode can be used for communication over a bidirectional 8 -bit bus. Handshaking signalsare used in a manner similar to mode 1. Mode 2 is available for use in group A only (port A andthe upp...

Register-Level Programming Chapter 4 PC-DIO-96 User Manual 4-12 © National Instruments Corporation porta = BASE_ADDRESS + APORTAoffset;portb = BASE_ADDRESS + APORTBoffset;portc = BASE_ADDRESS + APORTCoffset;cnfg = BASE_ADDRESS + ACNFGoffset; /* EXAMPLE 1*/ outp(cnfg,0x80); /* Ports A, B, and C are o...

Register-Level Programming Chapter 4 PC-DIO-96 User Manual 4-14 © National Instruments Corporation At the digital I/O connector, port C has the following pin assignments when in mode 1 input.Notice that the status of STBA* and the status of STBB* are not included in the port C statusword. PC7 PC6 PC...

Chapter 4 Register-Level Programming © National Instruments Corporation 4-15 PC-DIO-96 User Manual Mode 1—Strobed Output The control word written to the CNFG Register to configure port A for output in mode 1 isshown as follows. Bits PC4 and PC5 of port C can be used as extra input or output lines. D...

Register-Level Programming Chapter 4 PC-DIO-96 User Manual 4-16 © National Instruments Corporation Bit Name Description (continued) 2 INTEB Interrupt Enable Bit for Port B—Setting this bit enables interruptsfrom port B of the 82C55A. This bit is controlled bysetting/resetting PC2. 1 OBFB* Output Buf...

Chapter 4 Register-Level Programming © National Instruments Corporation 4-17 PC-DIO-96 User Manual outp(cnfg,0xA0); /* Port A is an output in mode 1.*/ while (!(inp(portc) & 0x80)); /* Wait until OBFA* is set, indicating that the data last written to port Ahas been read.*/ outp(porta,0x12); /* W...

Chapter 4 Register-Level Programming © National Instruments Corporation 4-19 PC-DIO-96 User Manual Mode 2 Programming Example The following example shows how to configure PPI A for mode 2 input and output and how touse the handshaking signals to control data flow. This code is strictly an example an...

Chapter 4 Register-Level Programming © National Instruments Corporation 4-21 PC-DIO-96 User Manual outp(cnfg,0x84); /* Port B is an output in mode 1. */ outp(cnfg,0x05); /* Set PC2 to enable interrupts from 82C55A. */ outp(ireg1,0x02); /* Set AIRQ1 to enable PPI A, port B interrupts. */ outp(ireg2,0...

Register-Level Programming Chapter 4 PC-DIO-96 User Manual 4-22 © National Instruments Corporation Interrupt Programming Example for the 8253 An in-depth example of handling interrupts generated by the 8253 is presented as follows. Themain program is presented in C, while sample interrupt routines a...

Register-Level Programming Chapter 4 PC-DIO-96 User Manual 4-28 © National Instruments Corporation ; acknowledge the interrupt ih_0: mov ax,seg _DATA mov ds,ax mov al,eoi ; Signify end of interrupt cmp slave_ack,0 ; See if we need to acknowledge slave je short ih_1 ; Jump if not out acks,al ; Send s...

© National Instruments Corporation A-1 PC-DIO-96 User Manual Appendix ASpecifications This appendix lists the specifications of the PC-DIO-96. These specifications are typical at 25 ° C, unless otherwise stated. The operating temperature range is 0 ° to 70 ° C. Digital I/O Number of channels ..........

Specifications Appendix A PC-DIO-96 User Manual A-2 © National Instruments Corporation Pins 1–48, 51–98 ...................................................... Level Min Max Output high voltage (I out = -2.5 mA) 3.7 V 5.0 V Output low voltage (I out = 2.5 mA) 0.0 V 0.4 V Output current (V OL = 0.5 V)...

© National Instruments Corporation D- 1 PC-DIO-96 User Manual Appendix DCustomer Communication ___________________________________________________ For your convenience, this appendix contains forms to help you gather the information necessaryto help us solve technical problems you might have as well...

Technical Support Form ___________________________________________________ Photocopy this form and update it each time you make changes to your software or hardware, and use the completedcopy of this form as a reference for your current configuration. Completing this form accurately before contactin...

Documentation Comment Form ___________________________________________________ National Instruments encourages you to comment on the documentation supplied with our products. Thisinformation helps us provide quality products to meet your needs. Title: PC-DIO-96 User Manual Edition Date: September 19...

© National Instruments Corporation Glossary-1 PC-DIO-96 User Manual Glossary ___________________________________________________ Prefix Meaning Value n- nano- 10-9 µ - micro- 10-6 m- milli- 10-3 k- kilo- 10 3 M- mega- 10 6 ° degrees Ω ohms % percent A amperes AMD Advanced Micro Devices AWG American ...