Keithley IE-488 User manual

IE-488
Keithley MetraByte Corporation

*****

IE-488 Manual
Part Number: 24820
Revision A
Last Edit: June, 1984
Copyright @1984
KEITHLEY METAASYTEIASYSTIDAC
440 Myles Standish Boulevard
Taunton. Massachusetts 02780
Telephone [phone]
FAX [phone]

WARRANTY INFORMATION
All products manufactured by Keithley MetraByte are warranted against defective materials
and worksmanship for a period of one year from the date of delivery to the original
purchaser. Any product that is found to be defective wlthin the warranty period will. at the
option of Keithley MetraByte, be repaired or replaced. This warranty does not apply to
products damaged by improper use.

WARNING
Keithley MetraByte assumes no liability for damages consequent to the
u8e of this product. This product is not designed with components of a
level of reliability suitable for use in life support or crltical applications.
Information furnished by Keithley MetraEiyte is believed to be accurate and reliable.
However, the Keithley MetraByte Corporation assumes no responsibility for the use of such
information nor for any infringements of patents or other rights of third parties that may
result from its use. No license is granted by implication or otherwise under any patent
rights of Keithley MetraByte Corporation.
Keithley MetraByte/Asyst/DAC is also referred to here-in as Keith& MetmByte.
BasicTM is a trademark of Dartmouth College.
IBM@ is a registered trademark of International Business Machines Corporation.
PC, XT. AT, PS/2. and Micro Channel Architecture@ (MCA) are trademarks of
International Business Machines Corporation.
Microsoft@ is a registered trademark of Microsoft Corporation.
Turbo C@is a registered trademark of Borland International.

TABLE OF CONTENTS
CHAPTER 1
1.0 IEEE-488 GENERAL DESCRIPTION
1.1 IEEE-488 SYSTEM BUS OPERATIONS
CHAPTER 2
2.0 HARDWAREINSTALLATION
CHAPTER 3
3.0 MODESOF OPERATION
3.1 IMAGE SPECIFIERS
3.2 IMAGE TERMINATORS
3.3 FLAG RETURN CODES
CHAPTER 4
4.0 USER COMMANDS
ABORT 15
CLEAR 16
CONFIG 17
ENTER 18
EOI 19
LOCAL 20
LOCKOUT 21
OUTPUT 22
PARPOL 23
PASCTL 24
PPCONF 25
PPUNCF 26
REMOTE 27
REQUEST 28
RXCTL 29
STATUS 30
SYSCON 31
TRIGGER 32
3
4
9
11
12
13
14
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TABLE OF CONTENTS
CHAPTER 5
5.0 8086/8088 ASSEMBLY LANGUAGECALL FORMAT
5.1 ROM/RAM MEMORYMAP
5.2 STACK SEGMENTMAP
5.3 RETURN FLAG CODES
APPENDIX A DMA (Direct Memory Access) DATA TRANSFERS 36
APPENDIX B RUNNING COMPILED PROGRAMS 38
APPENDIX C MAIN IEEE488 (GPIB) BUS CONNECTIONS 40
APPENDIX D C88-01 CONNECTORCABLE 41
APPENDIX E INSTALLING IE-488 BOARD # 2 42
APPENDIX F EXAMPLE OF PROGRAMMING 43
REFERENCES 46
33
35
35
35
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GPIB IEEE488 MANUAL
1.0 GPIB IEEE488 INTERFACE CARD GENERAL DESCRIPTION
MetraByte's IE-488 General Interface (GPIB) I/O expansion board
for the IBM-PC computer is designed to plug directly into one I/O
slot inside the IBM-PC.The IE-488 has a built in 12 KbyteROM
interpreter which handles all the required initialization and
protocol functions required to use the IEEE488 Interface. No disk
files with driver routines are needed and the interpreter allows
all commands to be programmed in conventional high level IEEE488
command syntax e.g. REMOTE, ENTER etc. The IE-488 complies with
the IEEE November 1978 standard. The Interpreter is a relocatable
16 Kbyte block of code which may be entered via a BASIC CALL
statement or via DOS interrupt commands using assembly language
programming. All commands are string coded for ease of use. The
GPIB will handle up to 14 other talker/listener devices. The
controller maybe the IBM or any other of the 14 devices, any one
of which control may also be transferred to or from. The IE488
interpreter includes a group of subroutines which may be used to
to condition the data before data transfer when using assembly
language programs. The IE488 interpreter is capable of
implementing all twelve of the interface messages which are as
follows:-
1. The Data Message ---------------- The actual data information
sent from the talker device
to one or more listening
devices on the GPIB.
2. The Trigger Message ------------- This messaoe causes the
listener device(s) to
perform a device dependent
action when addressed.
3. TheClear Message ---------------
4. The Remote Message --------------
5. The Local Message ---------------
6. The Local Lockout Message -------
This message causes the
addressed device or all the
devices on the GBIB to
return to their predefined
state.
Causes the addressed device
or devices to switch from
front panel to remote prog-
ram control.
Causes the Remote Message
to be cleared from the
addressed device(s).
Prevents an operator from
manually returning to local
via front panel controls.
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GPIB IEEE488 MANUAL
7. Clear Lockout (Local Message) ---
8. Service Request Message - - - - - - - - -
9. Status Byte Message -------------
10. The Status Bit Message ---------
11. The Pass Control Message -------
12. The Abort Message --------------
GENERAL
Clears all devices on the
GPIB and sets in local mode.
Any device may send this at
any time to request service
from the controller. This
is cleared by sending the
device's Status Byte Msg.
if the device no longer
requires service.
A data byte that represents
the status of one device
on the bus. Bit 6 is set if
the device sent a Service
Request Message, and the
remaining bits are unique,
to the selected device.
A byte which represents the
operational conditions of a
group of devices on the
bus. Each bit represents a
device on the bus. This is
typical response to a Para-
llel Poll operation.
This allows transfer of the
bus management duties to
another device on the bus.
The System controller takes
unconditional control of
the bus from the active
controller. The
message
terminates communications
with the bus and sends a
Clear All message.
********* IEEE488 GPIB FUNCTION CLASSIFICATION TABLE ************
T6 -- Basic Talker, Serial Poll, Unaddressed if MLA
TEO -- No extended talker function
II4 -- Basic Listener, Unaddressed if MTA
LEO -- No extended listener function
SHl -- Complete Source Handshake capability
AH1 -- Complete Acceptor Handshake capability
SRl -- Complete Service Request capability
PPl -- Parallel Poll Remote configuration capability
RLl -- Complete Remote / Local capability
DC1
-- Complete Device Clear capability
DTl -- Complete Device Trigger capability
Cl,C2,C3,C4,CS - CONTROLLERstates
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