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Section Four
Register Descriptions
© National Instruments Corporation
4-31
GPIB-1014P User Manual
Table 4-5 shows the functions that are executed when the AUXMR Control Code (CNT[2-0]) is
loaded with 000 (binary) and the Command Code (COM[4-0]) is loaded.
Table 4-5. Auxiliary Commands Detailed Description
Command Code
(COM4-COM0)
4 3 2 1 0
Description
0 0 0 0 0
Immediate Execute Pon
This command generates a local pon message that places the
following GPIB interface functions into these idle states:
AIDS
Acceptor Idle State
CIDS
Controller Idle State
LIDS
Listener Idle State
LOCS
Local State
LPIS
Listener Primary Idle State
NPRS
Negative Poll Response State
PPIS
Parallel Poll Idle State
PUCS
Parallel Poll to Unaddressed to Configure State
SIDS
Source Idle State
SIIS
System Control Interface Clear Idle State
SPIS
Serial Poll Idle State
SRIS
System Control Remote Enable Idle State
TIDS
Talker Idle State
TPIS
Talker Primary Idle State
If the command is sent while a pon message is already active (by
either an external reset pulse or the Chip Reset auxiliary command)
the local pon message becomes false.
0 0 0 1 0
Chip Reset
The Chip Reset command resets the TLC in the same way as an
external reset pulse. The System Controller bit is also cleared.
The TLC is reset to the following conditions:
•
The local pon message is set and the interface functions are
placed in their idle states.
•
All bits of the SPMR are cleared.
•
The EOI bit is cleared.
•
All bits of the AUXRA, AUXRB, and AUXRE are cleared.
•
The Parallel Poll Flag and RSC local message are cleared.
•
The contents of the ICR is set to eight (F3 set to 1; F2, F1, and
F0 set to 0).
•
The TRM0 bit and the TRM1 bit are cleared.
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