10
Status Structure
• Overview — Provides an operational overview of the status structure for the
Model 6487.
• Clearing registers and queues — Covers the actions that clear (reset) registers and
queues.
• Programming and reading registers — Explains how to program enable registers
and read any register in the status structure.
• Status byte and service request (SRQ) — Explains how to program the status
byte to generate service requests (SRQs). Shows how to use the serial poll
sequence to detect SRQs.
• Status register sets — Provides bit identification and command information for
the four status register sets: standard event status, operation event status, measure-
ment event status, and questionable event status.
• Queues — Provides details and command information on the output queue and
error queue.
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