Measurement-computing Digital488/80A Instrukcja Użytkownika Pobierz pdf (Strona 66)

K - End-Or-Identify

SYNTAX

Kn Define mode n of EOI, where n = 0 or 1.

K0 (Default) EOI enabled; assert EOI on last byte transferred.

K1 EOI disabled; do not assert EOI on last byte transferred.

K? Returns the current EOI selection.

DESCRIPTION

The End-Or-Identify (

EOI) line is one of five bus management lines on the IEEE 488 bus. It is used by a Talker to

indicate the end of a multiple byte transfer sequence. Using the End-Or-Identify (K) command, the controller can

enable or disable the

EOI mode by programming the Digital488/80A from the bus. In mode K0, the EOI line is

asserted by the Digital488/80A on the last byte of every bus output string. In mode K1, the EOI function is disabled

(except when using the binary Data Formats F4 and F5).

EXAMPLE

PRINT#1,"OUTPUT08;K1X"

Line 1: Disable EOI assertion on last byte.

PRINT#1,"OUTPUT08;K?"

Line 2: Request EOI selection from Digital488/80A.

PRINT#1,"ENTER08"

INPUT#2,A$,

PRINT A$

Line 5: Display shows: K1

60 Digital488/80A Commands

967695 Digital488/80A User's Manual

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Measurement-computing Digital488/80A Instrukcja Użytkownika Strona 66