Vmebus Modules Not Provided; Diagnostic Aids; Data Transfer Features; Gpib-1014P Functional Description - National Instruments Corporation GPIB-1014P User Manual

Section Two

VMEbus Modules Not Provided

Because the GPIB-1014P is not designed to be VMEbus System Controller, it does not have the
following modules:
• Master
• Bus Timer
• Arbiter
• Interrupt Handler
• IACK Daisy Chain Driver
• System Clock Driver
• Serial Clock Driver
• Power Monitor

Diagnostic Aids

The GPIB-1014P is designed to allow stand-alone verification of I/O functions. See Section
Seven, GPIB-1014P Diagnostic and Troubleshooting Test Procedures, for details.

Data Transfer Features

The GPIB-1014P can be used to transfer data to and from the GPIB using programmed I/O.
Typical transfer rates range from 10 to 80 kbytes/sec. Data transfer rates approaching 1 Mbyte/sec
can be obtained with very high performance microprocessors and driver software. The actual
transfer rate for any particular GPIB system is a function of several factors including the
following:
• Response time of the GPIB devices involved
• Microprocessor speed and operating system and application program overhead
• Interrupt service response time

GPIB-1014P Functional Description

In the simplest terms, the GPIB-1014P can be thought of as a bus translator, converting messages
and signals present on the VMEbus into appropriate GPIB messages and signals. Expressed in
GPIB terminology, the GPIB-1014P implements GPIB interface functions for communicating
with other GPIB devices and device functions for communicating with the central processor and
memory. Expressed in VMEbus terminology, the GPIB-1014P is an interface to the outside
world.
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General Description
GPIB-1014P User Manual