National Instruments GPIB-1014 Series User manual

© Copyright 1985, 1997 National Instruments Corporation.
All Rights Reserved.
GPIB-1014
User Manual
March 1997 Edition
Part Number 3 70945A-01

National Instruments Corporate Headquarters
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[phone]
Technical support phone: [phone]
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Singapore 2265886, Spain 91 640 0085, Sweden 08 730 49 70, Switzerland 056 20 51 51,
Taiwan 02 377 1200, U.K. 01635 523545

Limited Warranty
The GPIB-1014 is warranted against defects in materials and workmanship for a period of two years 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.
The media on which you receive National Instruments software are warranted not to fail to execute programming
instructions, due to defects in materials and workmanship, for a period of 90 days from date of shipment, as
evidenced by receipts or other documentation. National Instruments will, at its option, repair or replace software
media that do not execute programming instructions if National Instruments receives notice of such defects during
the warranty period. National Instruments does not warrant that the operation of the software shall be uninterrupted
or error free.
A Return Material Authorization (RMA) number must be obtained from the factory and clearly marked on the
outside of the package before any equipment will be accepted for warranty work. National Instruments will pay the
shipping costs of returning to the owner parts which are covered by warranty.
National Instruments believes that the information in this manual is accurate. The document has been carefully
reviewed for technical accuracy. In the event that technical or typographical errors exist, National Instruments
reserves the right to make changes to subsequent editions of this document without prior notice to holders of this
edition. The reader should consult National Instruments if errors are suspected. In no event shall National
Instruments be liable for any damages arising out of or related to this document or the information contained in it.
EXCEPT AS SPECIFIED HEREIN, NATIONAL INSTRUMENTS MAKES NO WARRANTIES, EXPRESS OR IMPLIED,
AND SPECIFICALLY DISCLAIMS ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR
PURPOSE. CUSTOMER'S RIGHT TO RECOVER DAMAGES CAUSED BY FAULT OR NEGLIGENCE ON THE PART
OF NATIONAL INSTRUMENTS SHALL BE LIMITED TO THE AMOUNT THERETOFORE PAID BY THE CUSTOMER.
NATIONAL INSTRUMENTS WILL NOT BE LIABLE FOR DAMAGES RESULTING FROM LOSS OF DATA, PROFITS,
USE OF PRODUCTS, OR INCIDENTAL OR CONSEQUENTIAL DAMAGES, EVEN IF ADVISED OF THE POSSIBILITY
THEREOF. This limitation of the liability of National Instruments will apply regardless of the form of action,
whether in contract or tort, including negligence. Any action against National Instruments must be brought within
one year after the cause of action accrues. National Instruments shall not be liable for any delay in performance due
to causes beyond its reasonable control. The warranty provided herein does not cover damages, defects,
malfunctions, or service failures caused by owner's failure to follow the National Instruments installation, operation,
or maintenance instructions; owner's modification of the product; owner's abuse, misuse, or negligent acts; and
power failure or surges, fire, flood, accident, actions of third parties, or other events outside reasonable control.
Copyright
Under the copyright laws, this publication may not be reproduced or transmitted in any form, electronic or
mechanical, including photocopying, recording, storing in an information retrieval system, or translating, in whole or
in part, without the prior written consent of National Instruments Corporation.
Trademarks
NI-488M™is a trademark of National Instruments Corporation.
Product and company names listed are trademarks or trade names of their respective companies.

Warning Regarding Medical and Clinical Use
of National Instruments Products
National Instruments products are not designed with components and testing intended to ensure a level of reliability
suitable for use in treatment and diagnosis of humans. Applications of National Instruments products involving
medical or clinical treatment can create a potential for accidental injury caused by product failure, or by errors on the
part of the user or application designer. 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.
National Instruments products are NOT intended to be a substitute for any form of established process, procedure, or
equipment used to monitor or safeguard human health and safety in medical or clinical treatment.

FCC/DOC Radio Frequency Interference Compliance
This equipment generates and uses radio frequency energy and, if not installed and used in strict accordance with the
instructions in this manual, may cause interference to radio and television reception. This equipment has been tested
and found to comply with the following two regulatory agencies:
Federal Communications Commission
This device complies with Part 15 of the Federal Communications Commission (FCC) Rules for a Class A digital
device. Operation is subject to the following two conditions:
1. This device may not cause harmful interference in commercial environments.
2. This device must accept any interference received, including interference that may cause undesired operation.
Canadian Department of Communications
This device complies with the limits for radio noise emissions from digital apparatus set out in the Radio
Interference Regulations of the Canadian Department of Communications (DOC).
Le présent appareil numérique n’émiet pas de bruits radioélectriques dépassant les limites applicables aux appareils
numériques de classe A prescrites dans le réglement sur le brouillage radioélectrique édicté par le ministére des
communications du Canada.
Instructions to Users
These regulations are designed to provide reasonable protection against harmful interference from the equipment to
radio reception in commercial areas. Operation of this equipment in a residential area is likely to cause harmful
interference, in which case the user will be required to correct the interference at his own expense.
There is no guarantee that interference will not occur in a particular installation. However, the chances of
interference are much less if the equipment is installed and used according to this instruction manual.
If the equipment does cause interference to radio or television reception, which can be determined by turning the
equipment on and off, one or more of the following suggestions may reduce or eliminate the problem.
• Operate the equipment and the receiver on different branches of your AC electrical system.
• Move the equipment away from the receiver with which it is interfering.
• Reorient or relocate the receiver’s antenna.
• Be sure that the equipment is plugged into a grounded outlet and that the grounding has not been defeated with a
cheater plug.
Notice to user: Changes or modifications not expressly approved by National Instruments could void the user’s
authority to operate the equipment under the FCC Rules.
If necessary, consult National Instruments or an experienced radio/television technician for additional suggestions.
The following booklet prepared by the FCC may also be helpful: How to Identify and Resolve Radio-TV
Interference Problems. This booklet is available from the U.S. Government Printing Office, Washington, DC
20402, Stock Number 004-000-00345-4.

© National Instruments Corporation vii GPIB-1014 User Manual
Contents
About This Manual ............................................................................................................xiii
Organization of This Manual ........................................................................................xiii
Conventions Used in This Manual ................................................................................xiv
Related Documentation .................................................................................................xiv
Customer Communication.............................................................................................xv
Chapter 1
Introduction ..........................................................................................................................1-1
What Your Kit Should Contain.....................................................................................1-3
Optional Equipment ......................................................................................................1-3
Unpacking .....................................................................................................................1-4
Chapter 2
General Description ...........................................................................................................2-1
Electrical Characteristics...............................................................................................2-1
VMEbus Characteristics................................................................................................2-2
VMEbus Slave-Addressing ...............................................................................2-2
VMEbus Slave-Data..........................................................................................2-3
VMEbus Master-Direct Memory Access..........................................................2-5
Interrupter..........................................................................................................2-6
Data Transfer Bus (DTB) Requester.................................................................2-7
VMEbus Modules Not Provided ...........................................................2-7
Diagnostic Aids .................................................................................................2-7
Data Transfer Features ..................................................................................................2-7
Programmed I/O Transfers................................................................................2-8
GPIB-1014 Functional Description...............................................................................2-8
Chapter 3
Configuration and Installation ......................................................................................3-1
Configuration................................................................................................................. 3-1
Access Mode .....................................................................................................3-3
Base Address .....................................................................................................3-3
Set Base Address Using Jumper Block W1 ..........................................3-4
Set Base Address Using Compare Address Lines.................................3-4
DMA Address Modifier Code Output...............................................................3-5
Other Configuration Parameters........................................................................3-7
Installation.....................................................................................................................3-7
Verification of System Compatibility ...............................................................3-7
Cabling ..............................................................................................................3-10
Verification Testing...........................................................................................3-10
Chapter 4
Register Bit Descriptions .................................................................................................4-1
Register Map .................................................................................................................4-1
Register Sizes ....................................................................................................4-2

Contents
GPIB-1014 User Manual viii © National Instruments Corporation
Register Description..........................................................................................4-2
Register Description Format .................................................................4-3
Interface Registers.........................................................................................................4-3
Data In Register (DIR) ......................................................................................4-6
Command/Data Out Register (CDOR)..............................................................4-7
Interrupt Status Register 1 (ISR1).....................................................................4-8
Interrupt Mask Register 1 (IMR1).....................................................................4-8
Interrupt Status Register 2 (ISR2).....................................................................4-14
Interrupt Mask Register 2 (IMR2).....................................................................4-14
Serial Poll Status Register (SPSR) ....................................................................4-19
Serial Poll Mode Register (SPMR) ...................................................................4-19
Address Status Register (ADSR) ......................................................................4-20
Address Mode Register (ADMR)......................................................................4-22
Command Pass Through Register (CPTR) .......................................................4-25
Auxiliary Mode Register (AUXMR) ................................................................4-27
Hidden Registers ...............................................................................................4-33
Internal Counter Register (ICR)............................................................4-34
Parallel Poll Register (PPR) ..................................................................4-35
Auxiliary Register A (AUXRA)............................................................4-37
Auxiliary Register B (AUXRB)............................................................4-39
Auxiliary Register E (AUXRE) ............................................................4-41
Address Register 0 (ADR0) ..............................................................................4-42
Address Register (ADR) ...................................................................................4-43
Address Register 1 (ADR1) ..............................................................................4-44
End of String Register (EOSR) .........................................................................4-45
DMA Registers..............................................................................................................4-46
Address Registers..............................................................................................4-48
Transfer Count Registers...................................................................................4-48
Function Code Registers ...................................................................................4-50
Device Control Register ....................................................................................4-51
Operation Control Register ...............................................................................4-53
Sequence Control Register ................................................................................4-55
Channel Control Register ..................................................................................4-56
Channel Status Register..................................................................................... 4-58
Channel Error Register......................................................................................4-60
Channel Priority Register ..................................................................................4-61
Interrupt Vector Registers .................................................................................4-62
General Control Register...................................................................................4-63
Configuration Registers.....................................................................................4-64
Configuration Register 1 (CFG1)..........................................................4-64
Configuration Register 2 (CFG2)..........................................................4-66
Chapter 5
Programming Considerations ........................................................................................5-1
Initialization...................................................................................................................5-1
The GPIB-1014 as GPIB Controller .............................................................................5-3
Becoming Controller-In-Charge (CIC) and Active Controller .........................5-3
Sending Remote Multiline Messages (Commands) ..........................................5-4
Going from Active to Standby Controller.........................................................5-4

Contents
© National Instruments Corporation ix GPIB-1014 User Manual
Going from Standby to Active Controller.........................................................5-4
Going from Active to Idle Controller................................................................5-5
The GPIB-1014 as GPIB Talker and Listener...............................................................5-6
Programmed Implementation of Talker and Listener .......................................5-6
Addressed Implementation of the Talker and Listener .....................................5-6
Address Mode 1.....................................................................................5-6
Address Mode 2.....................................................................................5-6
Address Mode 3.....................................................................................5-7
Sending/Receiving Messages........................................................................................5-8
Using Direct Memory Access ...........................................................................5-8
DMA Transfers without the Carry Cycle..............................................5-10
DMA Transfers with the Carry Cycle ...................................................5-13
Polling During DMAs ...........................................................................5-17
Sending END or EOS............................................................................5-17
Terminating the Transfer and Checking the Result...............................5-17
Terminating on END or EOS ................................................................5-19
Using Programmed I/O .....................................................................................5-19
Sending and Receiving Data .................................................................5-19
Sending END or EOS............................................................................5-20
Terminating on END or EOS ................................................................5-20
Interrupts .......................................................................................................................5-20
Serial Polls.....................................................................................................................5-22
Conducting a Serial Poll....................................................................................5-22
Responding to a Serial Poll ...............................................................................5-22
Parallel Polls..................................................................................................................5-22
Conducting a Parallel Poll.................................................................................5-23
Responding to a Parallel Poll ............................................................................5-24
Chapter 6
Theory of Operation ..........................................................................................................6-1
VMEbus Interface .........................................................................................................6-1
Data Lines..........................................................................................................6-1
Slave Read and Write Transfers............................................................6-1
DMA Transfers......................................................................................6-1
Control Signals..................................................................................................6-2
Address..............................................................................................................6-2
Control Equations of Transceivers....................................................................6-3
Address Decoding .........................................................................................................6-3
Clock and Reset Circuitry .............................................................................................6-4
Configuration Registers.................................................................................................6-5
Configuration Register 1 ...................................................................................6-5
Configuration Register 2 ...................................................................................6-6
Timing State Machine ...................................................................................................6-6
Slave Cycles ......................................................................................................6-6
DMA Cycles......................................................................................................6-7
DMA Gating and Control..............................................................................................6-7
Interrupter......................................................................................................................6-9
DTB Requester and Controller......................................................................................6-9
GPIB Synchronization and Interrupt Control................................................................6-12

Contents
GPIB-1014 User Manual x © National Instruments Corporation
68450 DMAC................................................................................................................6-14
DMAC Channel Operation................................................................................6-15
Initialization and Transfer Phases .........................................................6-15
Device (TLC)/DMAC Communication.....................................6-15
DMA Requests ........................................................................6-16
Data Transfers ...........................................................................6-16
Operands and Addressing..........................................................6-17
Address Register Operation.......................................................6-17
Transfer Count Register Operation ...........................................6-17
Initiation and Control of Channel Operation.........................................6-18
Initiating the Operation .............................................................6-18
The Continue Mode of Operation .............................................6-18
Halt ............................................................................................6-18
Software Abort ..........................................................................6-18
Interrupt Enable.........................................................................6-19
Block Termination.................................................................................6-19
Multiple Block Operations ........................................................6-19
Continued Operations................................................................6-19
Array Chaining Operations .......................................................6-19
Linked Chaining Operations .....................................................6-20
Error Conditions........................................................................6-21
GPIB Interface...............................................................................................................6-23
Test and Troubleshooting..............................................................................................6-24
DMA Stand-Alone Testing ...............................................................................6-24
GPIB Interface Testing......................................................................................6-24
Chapter 7
Diagnostic and Troubleshooting Test Procedures ..................................................7-1
Interpreting Test Procedures .........................................................................................7-1
GPIB-1014 Hardware Installation Tests .......................................................................7-2
Appendix A
Hardware Specifications ..................................................................................................A-1
Appendix B
Parts List and Schematic Diagrams .............................................................................B-1
Appendix C
Sample Programs ...............................................................................................................C-1
Appendix D
Multiline Interface Messages .........................................................................................D-1
Appendix E
Operation of the GPIB ......................................................................................................E-1
Types of Messages ........................................................................................................E-1
Talkers, Listeners, and Controllers................................................................................E-1
The Controller-In-Charge and System Controller.........................................................E-2
GPIB Signals and Lines ................................................................................................E-2

Contents
© National Instruments Corporation xi GPIB-1014 User Manual
Data Lines..........................................................................................................E-2
Handshake Lines ...............................................................................................E-2
NRFD (not ready for data) ....................................................................E-2
NDAC (not data accepted) ....................................................................E-3
DAV (data valid)...................................................................................E-3
Interface Management Lines.............................................................................E-3
ATN (attention) .....................................................................................E-3
IFC (interface clear) ..............................................................................E-3
REN (remote enable).............................................................................E-3
SRQ (service request)............................................................................E-3
EOI (end or identify) .............................................................................E-3
Physical and Electrical Characteristics..........................................................................E-4
Configuration Requirements .........................................................................................E-6
Related Documents........................................................................................................E-7
Appendix F
Mnemonics Key ...................................................................................................................F-1
Appendix G
Customer Communication ..............................................................................................G-1
Glossary ..................................................................................................................... Glossary-1
Index ..................................................................................................................................Index-1
Figures
Figure 1-1. GPIB-1014 Interface Board .............................................................................1-2
Figure 2-1. GPIB-1014 with a VMEbus Computer............................................................2-9
Figure 2-2. GPIB-1014 in a Multiprocessor Application ...................................................2-10
Figure 2-3. GPIB-1014 Block Diagram..............................................................................2-11
Figure 3-1. Parts Locator Diagram .....................................................................................3-2
Figure 3-2. Access Mode After RESET .............................................................................3-3
Figure 3-3. Configuration for GPIB-1014 Base Address 2000 (hex).................................3-4
Figure 3-4. Default Settings of AM Code Jumpers W3, W4, and W5 ...............................3-5
Figure 4-1. Interface Registers............................................................................................4-4
Figure 4-2. Writing to the Hidden Registers.......................................................................4-5
Figure 4-3. DMA Register Memory Map...........................................................................4-47
Figure 5-1. DMA Transfer without Carry Cycle ................................................................5-10
Figure 5-2. DMA Transfer with Carry Cycle .....................................................................5-13
Figure 6-1. DTB Requester and Controller Flip-Flop Operations......................................6-10
Figure 6-2. Array Format for Array Chaining Modes ........................................................6-20

Contents
GPIB-1014 User Manual xii © National Instruments Corporation
Figure 6-3. Array Format for Linked Chaining Modes ......................................................6-21
Figure E-1. The GPIB Connector and Signal Assignments................................................E-4
Figure E-2. Linear Configuration........................................................................................E-5
Figure E-3. Star Configuration............................................................................................E-6
Tables
Table 2-1. GPIB-1014 Signals............................................................................................2-1
Table 2-2. µPD7210 Internal GPIB Interface Registers.....................................................2-3
Table 2-3. 68450 Internal DMA Registers .........................................................................2-4
Table 2-4. GPIB-1014 Configuration Registers .................................................................2-5
Table 2-5. GPIB-1014 IEEE 488 Interface Capabilities.....................................................2-13
Table 2-6. GPIB-1014 IEEE 1014 Interrupter Compliance Levels....................................2-15
Table 3-1. Programming Values for Default Settings of W3, W4, and W5.......................3-6
Table 3-2. Setting the Address Modifier Code Bits (AM5-AM0)......................................3-6
Table 3-3. GPIB-1014 Pin Assignment on VMEbus Connector P1...................................3-8
Table 3-4. GPIB-1014 Pin Assignment on VMEbus Connector P2...................................3-9
Table 4-1. GPIB-1014 Register Map..................................................................................4-1
Table 4-2. Clues to Understanding Mnemonics .................................................................4-3
Table 4-3. Multiline GPIB Commands Recognized by the µPD7210................................4-25
Table 4-4. Auxiliary Command Summary .........................................................................4-28
Table 4-5. Auxiliary Commands: Detail Description.........................................................4-29
Table 4-6. Examples for Configuring the PPR...................................................................4-36
Table 4-7. DMAC DMA Channel Register Set..................................................................4-46
Table 6-1. Control Equations of Transceivers....................................................................6-3
Table A-1. Electrical Characteristics...................................................................................A-1
Table A-2. Environmental Characteristics ..........................................................................A-1
Table A-3. Physical Characteristics.....................................................................................A-2

© National Instruments Corporation xiii GPIB-1014 User Manual
About This Manual
The GPIB-1014 User Manual describes the mechanical and electrical aspects of the GPIB-1014,
the data transfer features, and contains information concerning its operation and programming.
Organization of This Manual
The GPIB-1014 User Manual is organized as follows:
• Chapter 1, Introduction, describes the GPIB-1014, lists the contents and optional equipment
for your GPIB-1014 kit, and explains how to unpack the GPIB-1014 kit.
• Chapter 2, General Description, contains the electrical specifications for the GPIB-1014, the
data transfer features, and describes the characteristics of key interface board components.
• Chapter 3, Configuration and Installation, describes the steps needed to configure and install
the GPIB-1014 hardware.
• Chapter 4, Register Bit Descriptions, contains a description of the register map, a list of
interface registers, and a description of the DMA registers.
• Chapter 5, Programming Considerations, explains the initialization process,
sending/receiving messages, and the serial/parallel poll process.
• Chapter 6, Theory of Operation, contains a functional overview of the GPIB-1014 board and
explains the operation of each functional block making up the GPIB-1014.
• Chapter 7, Diagnostic and Troubleshooting Test Procedures, contains test procedures for
determining if the GPIB-1014 is installed and operating correctly.
• Appendix A, Hardware Specifications, specifies the electrical, environmental, and physical
characteristics of the GPIB-1014 board and the condition under which it should be operated.
• Appendix B, Parts List and Schematic Diagrams, contains the parts list and schematic
diagrams for the GPIB-1014.
• Appendix C, Sample Programs, contains listings of routines in 68000 assembly language
code that implement the essential elements of the major utility functions.
• Appendix D, Multiline Interface Messages, lists the multiline interface messages and
describes the mnemonics and messages that correspond to the interface functions. These
functions include initializing the bus, addressing and unaddressing devices, and setting
device modes for local or remote programming. The multiline interface messages are
IEEE 488-defined commands that are sent and received with ATN TRUE.
• Appendix E, Operation of the GPIB, describes the operation of the GPIB.

About This Manual
GPIB-1014 User Manual xiv © National Instruments Corporation
• Appendix F, Mnemonics Key, contains a mnemonics key that defines the mnemonics
(abbreviations) used throughout this manual for functions, remote messages, local messages,
states, bits, registers, integrated circuits, system functions, and VMEbus operations and
signals.
• Appendix G, Customer Communication, contains forms for you to complete to facilitate
communication with National Instruments concerning our products.
• The Glossary contains an alphabetical list and description of terms used in this manual,
including abbreviations, acronyms, metric prefixes, and symbols.
• The Index contains an alphabetical list of key terms and topics used in this manual, including
the pages where each one can be found.
Conventions Used in This Manual
The following conventions are used to distinguish elements of text throughout this manual:
italic Italic text denotes emphasis, a cross reference, or an introduction to a key
concept.
IEEE 488 IEEE 488 is used throughout this manual to refer to the ANSI/IEEE
Standard 488.1-1987, which defines the GPIB.
IEEE 1014 IEEE 1014 is used throughout this manual to refer to the ANSI/IEEE
Standard 1014-1987, which defines the GPIB.
Related Documentation
The following documents contain information that you may find helpful as you read this manual:
• ANSI/IEEE Standard 488.1-1987, IEEE Standard Digital Interface for Programmable
Instrumentation.
• ANSI/IEEE Standard 1014-1987, IEEE Standard for a Versatile Backplane Bus: VMEbus.
•
µ PD7210 GPIB-IFC User Manual, NEC Electronics U.S.A., Inc., One Natick Executive
Park, Natick, MA 01760.
• µ PD7210 Intelligent GPIB Interface Controller Engineering Data Sheet, NEC Electronics
U.S.A., Inc., Microcomputer Division.
•How to Interface a Microcomputer System to a GPIB, (& The NEC µPD7210 TLC), NEC
Electronics U.S.A., Inc.

About This Manual
© National Instruments Corporation xv GPIB-1014 User Manual
•Motorola Semiconductor Technical Data MC68450 Advance Information Direct Memory
Access Controller (DMAC)
•Hitachi Microcomputer System HD68450 DMAC (Direct Memory Access Controller)
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. These forms are in Appendix G, Customer
Communication, at the end of this manual.

© National Instruments Corporation 1-1 GPIB-1014 User Manual
Chapter 1
Introduction
This chapter describes the GPIB-1014, lists the contents and oiptional equipment for your
GPIB-1014 kit, and explains how to unpack the GPIB-1014 kit.
The GPIB-1014 is a high-performance IEEE 488 interface for the VMEbus. This interface
permits IEEE 488 compatible engineering, scientific, or medical instruments to be controlled
from a VMEbus-based computer. The GPIB-1014 has the following features:
• Complete IEEE 488 Talker/Listener/Controller (TLC) capability using the NEC µPD7210
GPIB TLC chip
• DMA transfers
- Data rates up to 500 kbytes/sec
- Unlimited data block lengths
- Full 24-bit addressing
- GPIB synchronization detection
- General purpose DMA capability
• Complete software control through programmable configuration parameters
- One out of four Bus Request/Grant lines
- One out of seven Interrupt Request lines
- Supervisor or User access
- Red/Green SYSFAIL LED indicator
- Local Master Reset
• VME laboratories certified
• IEEE 1014 (VMEbus) standard compliance
• Comprehensive software support

Introduction Chapter 1
GPIB-1014 User Manual 1-2 © National Instruments Corporation
Figure 1-1 shows the GPIB-1014 interface board.
Figure 1-1. GPIB-1014 Interface Board
Art not available in PDF version of document.

Chapter 1 Introduction
© National Instruments Corporation 1-3 GPIB-1014 User Manual
The GPIB-1014 interface kit includes hardware and programming examples to implement the
GPIB functions. Optional cables are supplied for interconnection with other devices on the
GPIB.
What Your Kit Should Contain
Your GPIB-1014 kit should contain the following components:
Kit Component Part Number
One of these GPIB-1014 boards:
• GPIB-1014-1 776059-01
• GPIB-1014-2 776060-01
• GPIB-1014-EH (EH=Ejector Handles) 776059-51
• GPIB-1014-1S (no P2 signals) 776059-21
• GPIB-1014-1S-EH (no P2 signals; EH=Ejector Handles) 776059-61
One GPIB-1014 User Manual 320030-01
Optional Equipment
Equipment Part Number
Single-Connector Scrambler Interface Card 180170-01
Dual-Connector Scrambler Interface Card 180170-02
Scrambler Card to P2 Cable Assembly 180173-01
Single-Shielded Cables:
GPIB Type X1 Cable - 1 m 763001-01
GPIB Type X1 Cable - 2 m 763001-02
GPIB Type X1 Cable - 4 m 763001-03
GPIB Monitor/Analyzer:
GPIB-400 776074-01
GPIB-410 776104-01

Introduction Chapter 1
GPIB-1014 User Manual 1-4 © National Instruments Corporation
Unpacking
Follow these steps when unpacking your GPIB-1014.
1. Verify that the pieces contained in the package you received match the kit parts list given
earlier in this chapter. Do not remove the board from its plastic bag at this point.
2. Your GPIB-1014 board is shipped packaged in an antistatic plastic bag 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, touch the plastic bag to
a metal part of your VMEbus computer chassis before removing the board from the bag.
3. Remove the board from the bag and inspect the board for loose components or any other sign
of damage. Notify National Instruments if the board appears damaged in any way. Do not
install a damaged board into your computer.

© National Instruments Corporation 2-1 GPIB-1014 User Manual
Chapter 2
General Description
This chapter contains the electrical specifications for the GPIB-1014, the data transfer features,
and describes the characteristics of key interface board components.
Electrical Characteristics
All integrated circuit drivers and receivers used on the GPIB-1014 meet the requirements of the
VMEbus specification and the IEEE 1014 standard. Table 2-1 contains a list of the VMEbus
signals used by the GPIB-1014 and the electrical loading presented by the circuitry on the
interface board (in terms of device types and their part numbers).
Note: The asterisk (*) after the bus signal indicates that the signal is active low.
Table 2-1. GPIB-1014 Signals
Driver Device Receiver Device
Bus Signals Part Number Part Number
D00-D15 F245 F245
A23-A16 AS573 –
A15-A09 AS573 LS2521
A8 AS573 F1241
A07-A01 F245 F245
AM5-AM3, AM0 F241 LS2521
AM2 F241 LS240
DS0*, DS1*, AS*, WRITE* F241 F1241
LWORD* F241 LS2521
IACK* F241 F1241
SYSCLK – LS240
BG0IN*-BG3IN* – LS241
BG0OUT*-BG3OUT* F241 –
DTACK* AS756 LS240
(continues)

General Description Chapter 2
GPIB-1014 User Manual 2-2 © National Instruments Corporation
Table 2-1. GPIB-1014 Signals (continued)
Driver Device Receiver Device
Bus Signals Part Number Part Number
BR0*-BR3* AS756 LS241
BBSY* AS756 LS240
IACKIN* – LS240
IACKOUT* F1241 –
IRQ1*-IRQ7* 74145 –
BERR* – F1241
SYSFAIL* AS756 –
SYSRESET* – LS240
All GPIB transceivers meet the requirements of the IEEE 488 standard. The components used
are as follows:
Transceivers Component Designation
Data Transceivers DS75160AN
Control Transceivers DS75162AN
Note: The GPIB-1014 requires regulated +5 VDC power from the VMEbus. Current load is
typically 1.6 A (2.0 A maximum).
VMEbus Characteristics
The following paragraphs describe each of the VMEbus modules on the GPIB-1014: slave,
master, interrupter, and requester. Table 2-5 at the end of this chapter summarizes the
capabilities of these modules.
VMEbus Slave-Addressing
The GPIB-1014 occupies 512 bytes (256 words) in the A16 (short) I/O space. As a VMEbus
slave, it only responds when the address modifier (AM) lines specify a short supervisory access
(AM code = 2D) or a short nonprivileged access (AM code = 29). The board responds to short
16-bit addresses. The GPIB-1014 compares address lines A15 through A9 with its base address