Assert – Measurement Computing Analyzer488 User Manual

Page 115

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Section 4

Serial Controller

4.21

ASSERT

The ASSERT command asserts one or more bus management and/or data lines

when the Analyzer488 is in the Low Level Controller Mode. Individual lines or ALL
lines may be specified. Data is specified after the keyword DATA in Binary, Decimal,
Hexadecimal, or ASCII format

The ASSERT command will only assert data lines while the Analyzer488 is in

the Talk State. If ASSERT is issued while the Analyzer488 is in Listen State, the
specified management lines and data lines will be asserted when the Analyzer488 is
changed to the Talk State (by issuing the TALK command).

Lines remain asserted until they are unasserted, the Analyzer488 is reset, or the

CONTROLLER OFF

command is used to put in the Analyzer488 into the High Level

controller Mode.

The query option, ASSERT?, returns the management and data lines that have

been asserted.

TYPE

Low Level Controller command

SYNTAX

ASSERT {[line][ALL][DATA<data>]}

line

is one or more of SRQ, ATN, REN, EOI, or IFC

data

may be specified in Binary (%01001010) (all eight digits

must be specified), Decimal (122), Hexadecimal (&H3F) (both
digits must be specified), or ASCII ('A).

RESPONSE

None

MODE

Low Level Controller

BUS STATES

Bus states are defined by the usage of the commands.

QUERY

The string: ASSERT, followed by the management and data lines

RESPONSE

that were asserted.

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