National Instruments PC-TIO-10 User Manual

Timing i/o board for the pc

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PC-TIO-10

User Manual

Timing I/O Board for the PC

July 1993 Edition

Part Number 320292-01

Table of Contents

Summary of Contents for National Instruments PC-TIO-10

Page 1 Click here to comment on this document via the National Instruments at http://www.natinst.com/documentation/daq/ PC-TIO-10 User Manual Timing I/O Board for the PC July 1993 Edition Part Number 320292-01 © Copyright 1990, 1994 National Instruments Corporation. All Rights Reserved.
Page 2 National Instruments Corporate Headquarters 6504 Bridge Point Parkway Austin, TX 78730-5039 (512) 794-0100 Technical support fax: (800) 328-2203 (512) 794-5678 Branch Offices: Australia (03) 879 9422, Austria (0662) 435986, Belgium 02/757.00.20, Canada (Ontario) (519) 622-9310, Canada (Québec) (514) 694-8521, Denmark 45 76 26 00, Finland (90) 527 2321, France (1) 48 14 24 24,...
Page 3 Limited Warranty The PC-TIO-10 is warranted against defects in materials and workmanship for a period of one year from the date of shipment, as evidenced by receipts or other documentation. National Instruments will, at its option, repair or replace equipment that proves to be defective during the warranty period. This warranty includes parts and labor.
Page 4 Any use or application of National Instruments products for or involving medical or clinical treatment must be performed by properly trained and qualified medical personnel, and all traditional medical safeguards, equipment, and procedures that are appropriate in the particular situation to prevent serious injury or death should always continue to be used when National Instruments products are being used.
Page 5 This manual is divided into the following chapters and appendixes: • Chapter 1, Introduction, describes the PC-TIO-10, lists the contents of your PC-TIO-10 kit, lists the optional software and equipment for use with the PC-TIO-10, and explains how to unpack the PC-TIO-10 kit. •...
Page 6 Preface • Appendix F, Customer Communication, contains forms for you to complete to facilitate communication with National Instruments concerning our products. • The Index alphabetically lists topics covered in this manual, including the page where the topic can be found.
Page 7 Related Documentation The following documents contain information that you may find helpful as you read this manual: • Am9513A/Am9513 System Timing Controller technical manual • IBM Personal Computer XT Technical Reference manual © National Instruments Corporation PC-TIO-10 User Manual...
Page 8 Preface Customer Communication National Instruments wants to receive your comments on our products and manuals. We are interested in the applications you develop with our products, and we want to help if you have problems with them. To make it easy for you to contact us, this manual contains comment and configuration forms for you to complete.
Page 9: Table Of Contents
Am9513A Command Registers ............. 4-5 Am9513A Status Registers ..............4-6 Register Descriptions for the MC6821 .............. 4-7 MC6821 Data Registers ................. 4-8 MC6821 Control Registers ..............4-9 Programming Considerations for the Am9513A STCs ..........4-10 © National Instruments Corporation PC-TIO-10 User Manual...
Page 10 Interrupt Jumper Setting for Disabling Interrupts ..........2-5 Figure 2-5. Local Interrupt Jumper Setting (Factory Setting) ..........2-5 Figure 2-6. PC-TIO-10 I/O Connector Pin Assignments ............. 2-7 Figure 2-7. Event-Counting Application with External Switch Gating........ 2-10 Figure 2-8. Frequency Measurement Application ..............2-11 Figure 2-9.
Page 11 Tables Table 2-1. PC-TIO-10 Factory-Set Switch and Jumper Settings ........2-1 Table 2-2. Default Settings of National Instruments Products for the PC ......2-4 Table 4-1. PC-TIO-10 Address Map ................... 4-2 Table E-1. Switch Settings with Corresponding Base I/O Address and Base I/O Address Space ....................
Page 12: Chapter 1 Introduction
PC-TIO-10, and explains how to unpack the PC-TIO-10 kit. The PC-TIO-10 is a timing and digital I/O interface for the PC. Two AMD Am9513A STCs are used for the timing interface. With these chips, which feature many different timing and counting modes, the PC-TIO-10 can perform of a wide range of pulse measurement and wave generation functions.
Page 13: What Your Kit Should Contain
• Opto-isolated, solid-state relays and I/O module mounting racks The PC-TIO-10 turns the PC into a timing and digital I/O system controller for applications in laboratory testing, production testing, and industrial process monitoring and control. What Your Kit Should Contain The contents of the PC-TIO-10 kit (part number 776452-01) are listed as follows.
Page 14: Optional Software
NI-DAQ software package for controlling the PC-TIO-10 is included with the board. Using NI-DAQ is quicker and easier than and as flexible as using the low-level programming described in Chapter 4, Programming.
Page 15: Unpacking
Chapter 1 Unpacking Your PC-TIO-10 board is shipped in an antistatic package to prevent electrostatic damage to the board. Several components on the board can be damaged by electrostatic discharge. To avoid such damage in handling the board, take the following precautions: •...
Page 16: Configuration And Installation
The DIP switch and jumpers are shown in the parts locator diagram in Figure 2-1. The PC-TIO-10 is configured at the factory to a base I/O address of hex 1A0, to interrupt level 5, and to local interrupt setting No Connect and No Connect. These settings (shown in Table 2-1) are suitable for most systems.
Page 17: Base I/O Address Settings
Figure 2-1. PC-TIO-10 Parts Locator Diagram Base I/O Address Settings The base I/O address for the PC-TIO-10 is determined by the switches at position U12 (see Figure 2-1). The switches are set at the factory for the I/O address hex 1A0. With this default setting, the PC-TIO-10 uses the I/O address space hex 1A0 through 1A7.
Page 18: Figure 2-2. Example Base I/O Address Switch Settings
0FF are reserved for system use. Base I/O values hex 100 through 3FF are available on the I/O channel. A2, A1, and A0 are used by the PC-TIO-10 to decode accesses to the onboard registers. On the U12 DIP switches, press the side marked OFF to select a binary value of 1 for the corresponding address bit.
Page 19: Interrupt Level Selection
* These settings are software configurable and are disabled at startup time. Interrupt Level Selection There are two sets of jumpers for interrupt selection on the PC-TIO-10 board. W1 is used for selecting the interrupt level, while W2 is used for local selection of two of the counter outputs as interrupt sources.
Page 20: Local Interrupt Selection
Figure 2-4. Interrupt Jumper Setting for Disabling Interrupts Local Interrupt Selection In addition to the jumpers for selecting the interrupt level used by the PC-TIO-10, a set of jumpers, W2, is used to locally connect two of the counter outputs to the interrupt generation circuitry.
Page 21: Installation
Remove the top cover or access port to the I/O channel. Remove the expansion slot cover on the back panel of the computer. Insert the PC-TIO-10 in an unused 8-bit, 16-bit, or 32-bit slot. It may be a tight fit, but do not force the board into place.
Page 22: Figure 2-6. Pc-Tio-10 I/O Connector Pin Assignments
29 30 FOUT2 EXTIRQ1 31 32 EXTIRQ2 33 34 +5 V 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 Figure 2-6. PC-TIO-10 I/O Connector Pin Assignments © National Instruments Corporation PC-TIO-10 User Manual...
Page 23: Signal Connection Descriptions
These are the frequency outputs of the two Am9513A devices. 31-32 EXTIRQ<1..2> These are the interrupt inputs for the PC-TIO-10. This pin is connected to the computer's ground signal. +5 V This pin is connected to the computer's +5 VDC power supply.
Page 24: Timing Signal Connections
Am9513A SOURCE inputs. The counter value can then be read to determine the number of edges that have occurred. Counter operation can be gated on and off during event counting. © National Instruments Corporation PC-TIO-10 User Manual...
Page 25: Figure 2-7. Event-Counting Application With External Switch Gating
Figure 2-8 shows the connections for a frequency measurement application. A second counter can also be used to generate the gate signal in this application. PC-TIO-10 User Manual 2-10 © National Instruments Corporation...
Page 26: Figure 2-8. Frequency Measurement Application
Am9513A Digital Input Specifications (referenced to GND): Minimum Maximum Input logic high voltage 2.0 V 5.25 V Input logic low voltage 0.0 V 0.8 V -10 µA 10 µA Input current (0 < V in < 5.25 V) © National Instruments Corporation 2-11 PC-TIO-10 User Manual...
Page 27: Figure 2-9. Timing Signal Relationships
Am9513A SOURCE or GATE input pins. In addition to the signals applied to the SOURCE and GATE inputs, the Am9513A generates five internal timebase clocks from the clock signal supplied by the PC-TIO-10. The five internal PC-TIO-10 User Manual 2-12 ©...
Page 28: Digital I/O Signal Connections
(2.0 < V in < 5.25 V) – Input current, Port B 10 µA (0.4 < V in < 2.4 V) – Input current, EXTIRQ1 and EXTIRQ2 2.5 µA (0 < V in < 5.25 V) – © National Instruments Corporation 2-13 PC-TIO-10 User Manual...
Page 29: Figure 2-10. Digital I/O Connections
Digital input applications include receiving TTL signals and sensing external device states such as the state of the switch in Figure 2-10. Digital output applications include sending TTL signals and driving external devices such as the LED shown in Figure 2-10. PC-TIO-10 User Manual 2-14 © National Instruments Corporation...
Page 30: Power Connections
Warning: Under no circumstances should this +5-V power pin be connected directly to ground or to any other voltage source on the PC-TIO-10 or any other device. Doing so may damage the PC-TIO-10 and the PC. National Instruments is not liable for damage resulting from such a connection.
Page 31: Chapter 3 Theory Of Operation
Chapter 3 Theory of Operation This chapter explains the basic operation of the PC-TIO-10 circuitry. The block diagram in Figure 3-1 illustrates the key functional components of the PC-TIO-10 board. 1-MHz and 5-MHz Clocks GATE Data SOURCE Am9513A Transceiver STC A...
Page 32: Data Transceivers
Interrupt Control Circuitry The interrupt level used by the PC-TIO-10 is selected by the onboard jumper W1. Interrupts can be generated from two different sources, EXTIRQ1 and EXTIRQ2, each of which has programmable-edge polarity and individual enable, clear, and disable commands. A second set of jumpers, W2, locally connects two of the counter outputs to the interrupt circuitry.
Page 33: Timing And Digital I/O Connector
+5 V through a protection fuse (F1). This +5 V supply is often required to operate I/O module mounting racks. Pin 33 is connected to ground. See Chapter 2, Configuration and Installation, for additional information. © National Instruments Corporation PC-TIO-10 User Manual...
Page 34: Chapter 4 Programming
Chapter 4 Programming This chapter describes in detail the address and function of each of the PC-TIO-10 control and status registers. This chapter also includes important information about programming the PC-TIO-10. The PC-TIO-10 is a timing and digital I/O board designed around two Am9513A integrated circuits and one MC6821 integrated circuit.
Page 35: Register Map
Read-and-write Port B Control Register 8-bit Read-and-write Register Descriptions The register descriptions for the devices on the PC-TIO-10, including the Am9513A STCs and the MC6821 PIA, are given on the pages that follow. PC-TIO-10 User Manual © National Instruments Corporation...
Page 36: Register Descriptions For The Am9513A Stcs
Counters 1, 2, 3, 4, and 5 map to Counters 1, 2, 3, 4, and 5 of STC A, respectively; Counters 6, 7, 8, 9, and 10 map to Counters 1, 2, 3, 4, and 5 of STC B, respectively. © National Instruments Corporation PC-TIO-10 User Manual...
Page 37: Am9513A Data Registers
These eight bits are the least significant byte to be loaded into or read from the Am9513A Internal Register currently selected. These eight bits should be accessed before the eight bits of the most significant byte are accessed. PC-TIO-10 User Manual © National Instruments Corporation...
Page 38: Am9513A Command Registers
8-bit register, 8-bit port Bit Map: Name Description C<7..0> These eight bits are loaded into the Am9513A Command Register. See Appendix C, Am9513A Data Sheet, for detailed bit descriptions of the Am9513A Command Registers. © National Instruments Corporation PC-TIO-10 User Manual...
Page 39: Am9513A Status Registers
Flop. If this bit is set, the next byte to be written to or read from the Data Port is the least significant byte; if this bit is clear, the next byte to be written to or read from the Data Port is the most significant byte. PC-TIO-10 User Manual © National Instruments Corporation...
Page 40: Register Descriptions For The Mc6821
The MC6821 PIA has four registers–Port A and Port B both have a Data Register and a Control Register. The bit maps and signal definitions for each of these registers are as follows. For more information on the various registers, refer to Appendix D, Motorola MC6821 Data Sheet. © National Instruments Corporation PC-TIO-10 User Manual...
Page 41: Mc6821 Data Registers
Direction Register is being accessed, writing a zero to a bit makes the corresponding I/O line an input, while writing a one to a bit makes the corresponding I/O line an output. Reading the Data Direction Register returns the current configuration. PC-TIO-10 User Manual © National Instruments Corporation...
Page 42: Mc6821 Control Registers
The MC6821 Control Registers control the overall operation of the MC6821 and the selection of the two internal registers that are accessed through each of the MC6821 Data Registers. Some of the bits in the Control Registers are not used because of the design of the PC-TIO-10. These bits should be set as follows.
Page 43: Programming Considerations For The Am9513A Stcs
Programming Example for the Am9513A STCs The code below lists a sample function that can be used to reset the Am9513A STCs on the PC-TIO-10. In addition, the code lists a sample function that can be used to generate a variable duty-cycle square-wave.
Page 44 ((counter < 1) || (counter > 10) || (timebase > 15) || (high_time < 1L) || (high_time > 65536L) || (low_time < 1L) || (low_time > 65536L)) return range_err; set up the register addresses © National Instruments Corporation 4-11 PC-TIO-10 User Manual...
Page 45 3L selects a low time of 3 µsec a total of 10 µsec/cycle gives a 100 kHz wave 7 clocks high out of 10 clocks gives a 70% duty cycle square_wave(tio_ba, 8, 0x000b, 7L, 3L); PC-TIO-10 User Manual 4-12 © National Instruments Corporation...
Page 46: Interrupt Programming Example For The Mc6821
Programming Interrupt Programming Example for the MC6821 The PC-TIO-10 is configured so that EXTIRQ1 on the I/O connector is connected to CA1 on the MC6821, EXTIRQ2 on the I/O connector is connected to CB1 on the MC6821, and CA2 and CB2 of the MC6821 are disabled.
Page 47 32-bit return address. The code can be modified to use 16-bit addresses by changing and decrementing all references to the base page near register, , by two in only. Do not modify install_isr() remove_isr() isr_handler() PC-TIO-10 User Manual 4-14 © National Instruments Corporation...
Page 48 ; install_isr ; bp reg at [bp+0] ; ret addr ofs at [bp+2] ; ret addr seg at [bp+4] ; level at [bp+6] ; isr_block ofs at [bp+8] ; isr_block seg at [bp+10] © National Instruments Corporation 4-15 PC-TIO-10 User Manual...
Page 49 ; install the handler in the system ; mask interrupt level in the interrupt controller register and store ; the original setting of the mask bit for the selected interrupt level PC-TIO-10 User Manual 4-16 © National Instruments Corporation...
Page 50 [bp+4] _remove_isr proc far push ax push bx push cx push dx push ds push es ax,seg _DATA ds,ax ; see if our vector is installed--if not, do not remove the vector © National Instruments Corporation 4-17 PC-TIO-10 User Manual...
Page 51 ; ds:dx points to new handler ; install the old vector ; restore saved registers ri_exit: _remove_isr endp ; isr_handler _isr_handler proc far push ax push ds ; service interrupt PC-TIO-10 User Manual 4-18 © National Instruments Corporation...
Page 52 ; see if we need to acknowledge slave short ih_1 ; jump if not acks,al ; send slave acknowledge ; delay--wait for data transfer ih_1: ackm,al ; send master acknowledge ; restore saved registers iret _isr_handler endp _TEXT ends © National Instruments Corporation 4-19 PC-TIO-10 User Manual...
Page 53: Appendix A Specifications
Appendix A Specifications This appendix lists the specifications of the PC-TIO-10. These specifications are typical at 25° C, unless otherwise stated. The operating temperature range is 0° to 70° C. I/O Connector Electrical Specifications I/O Signal Ratings Absolute maximum voltage rating -0.3 to +7.0 V with respect to GND...
Page 54: Operating Environment
Maximum power 1.4 A at 5 VDC (±5%) Note: These power usage figures do not include the power used by external devices that are connected to the fused supply present on the I/O connector. PC-TIO-10 User Manual © National Instruments Corporation...
Page 55: Figure B-1. Pc-Tio-10 I/O Connector
Appendix B I/O Connector This appendix describes the pinout and signal names for the I/O connector on the PC-TIO-10. Figure B-1 shows the PC-TIO-10 I/O connector. SOURCE1 GATE1 OUT1 SOURCE2 GATE2 OUT2 SOURCE3 GATE3 OUT3 9 10 SOURCE4 GATE4 11 12...
Page 56: Appendix Camd Am9513A Data Sheet
AMD Am9513A Data Sheet This appendix contains the manufacturer data sheet for the AMD Am9513A integrated circuit (Advanced Micro Devices, Inc.). This circuit is used on the PC-TIO-10 board. * Copyright © Advanced Micro Devices, Inc. 1989. Reprinted with permission of copyright owner.
Page 95: Motorola Mc6821 Data Sheet
Motorola MC6821 Data Sheet This appendix contains the manufacturer data sheet for the Motorola MC6821 integrated circuit (Motorola, Inc.). This circuit is used on the PC-TIO-10 board. * Copyright © Motorola, Inc. 1988. Reprinted with permission of copyright owner. All rights reserved.
Page 107: Appendix E Switch Settings
0C8 - 0CF 0D0 - 0D7 Note: Base I/O address values 000 through 0FF hex are reserved for system use. Base I/O address values 100 through 3FF hex are available on the I/O channel. (continues) © National Instruments Corporation PC-TIO-10 User Manual...
Page 108 1F8 - 1FF 200 - 207 Note: Base I/O address values 000 through 0FF hex are reserved for system use. Base I/O address values 100 through 3FF hex are available on the I/O channel. (continues) PC-TIO-10 User Manual © National Instruments Corporation...
Page 109 320 - 327 328 - 32F Note: Base I/O address values 000 through 0FF hex are reserved for system use. Base I/O address values 100 through 3FF hex are available on the I/O channel. (continues) © National Instruments Corporation PC-TIO-10 User Manual...
Page 110 3F0 - 3F7 3F8 - 3FF Note: Base I/O address values 000 through 0FF hex are reserved for system use. Base I/O address values 100 through 3FF hex are available on the I/O channel. PC-TIO-10 User Manual © National Instruments Corporation...
Page 111: Customer Communication
Filling out a copy of the Technical Support Form before contacting National Instruments helps us help you better and faster. National Instruments provides comprehensive technical assistance around the world. In the U.S. and Canada, applications engineers are available Monday through Friday from 8:00 a.m. to 6:00 p.m.
Page 112 National Instruments for technical support helps our applications engineers answer your questions more efficiently. If you are using any National Instruments hardware or software products related to this problem, include the configuration forms from their user manuals. Include additional pages if necessary.
Page 113 Completing this form accurately before contacting National Instruments for technical support helps our applications engineers answer your questions more efficiently.
Page 114 Click here to comment on this document via the National Instruments at http://www.natinst.com/documentation/daq/ Documentation Comment Form ___________________________________________________ National Instruments encourages you to comment on the documentation supplied with our products. This information helps us provide quality products to meet your needs. Title: PC-TIO-10 User Manual Edition Date:...
Page 115: Index
C-3 to C-5 output control, C-26 to C-28 output control logic, C-27 overview, 3-2 pin description, C-6 prefetch circuit, C-10 specifications, C-33 to C-38 status register, C-10 to C-11 TC (terminal count), C-28 © National Instruments Corporation Index-1 PC-TIO-10 User Manual...
Page 116 D<7..0> bit, 4-4, 4-8 D<15..8> bit, 4-4 data transceivers, 3-2 digital I/O signal connections, 2-13 to 2-14 illustration of, 2-14 specifications and ratings, 2-13 to 2-14 timing and digital I/O connector, 3-3 PC-TIO-10 User Manual Index-2 © National Instruments Corporation...
Page 117 I/O signal ratings. See specifications and ratings. input signal specifications, A-1 installation cabling, 2-16 procedure for, 2-6 unpacking the PC-TIO-10, 1-4 INTEN bit, 4-9 interrupt level default settings for National Instrument products, 2-4 jumpers for interrupt level selection, 2-4 to 2-5...
Page 118 D-8 to D-9 peripheral timing characteristics, D-5 to D-7 pin assignments, D-12 port A-B hardware characteristics, D-9 power considerations, D-3 programming example, 4-13 to 4-19 specifications and ratings, D-3 to D-7 NI-DAQ software, 1-3 PC-TIO-10 User Manual Index-4 © National Instruments Corporation...
Page 119 Index operating environment specifications, A-2 operation of PC-TIO-10. See theory of operation. optional equipment, 1-3 optional software, 1-3 OUT<5..1> bit, 4-6 OUT1 through OUT10 signals, 2-8, 2-11 to 2-13 output signal specifications, A-1 to A-2 PC I/O channel control circuitry, 3-2 PC-TIO-10.
Page 120 See jumpers and switches. technical support, vii theory of operation Am9513A system timing controller, 3-2 block diagram, 3-1 data transceivers, 3-2 interrupt control circuitry, 3-2 MC6821 Peripheral Interface Adapter, 3-2 PC-TIO-10 User Manual Index-6 © National Instruments Corporation...
Page 121 2-9 pulse-width measurements, 2-10 specifications and ratings, 2-11 to 2-12 time-lapse measurements, 2-10 timing and digital I/O connector, 3-3 timing signal relationships, 2-12 unpacking the PC-TIO-10, 1-4 unused bits (X), 4-6 © National Instruments Corporation Index-7 PC-TIO-10 User Manual...

National Instruments PC-TIO-10 User Manual

Chapter 1 Introduction

Chapter 2 Configuration and Installation

Chapter 3 Theory of Operation

Chapter 4 Programming

Appendix A Specifications

Appendix B I/O Connector

Appendix Camd Am9513A Data Sheet

Appendix D

Motorola MC6821 Data Sheet

Appendix E Switch Settings

Appendix F

Customer Communication

Index

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Summary of Contents for National Instruments PC-TIO-10

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