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Section 8 IEEE 488 Primer
8.9
8.7.8 Selected Device Clear (SDC)
This causes a single device to be initialized to a pre-defined or power up
state. (
&H04
)
8.7.9 Serial Poll Disable (SPD)
The SPD command disables all devices from sending their Serial Poll
status byte. (
&H19
)
8.7.10 Serial Poll Enable (SPE)
A device which is Addressed to Talk will output its Serial Poll status
byte after SPE is sent and ATN is unasserted. (
&H18
)
8.7.11 Group Execute Trigger (GET)
This command usually signals a group of devices to begin executing a
triggered action. This allows actions of different devices to begin
simultaneously. (
&H08
)
8.7.12 Take Control (TCT)
This command passes bus control responsibilities from the current
Controller to another device which has the ability to control. (
&H09
)
8.7.13 Secondary Command Group (SCG)
These are any one of the 32 possible commands (0 to 31) in this group.
They must immediately follow a talk or listen address. (
&H60
to
&H7F
)
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