Chapter 3
Register Map and Descriptions
©
National Instruments Corporation
3-5
Misc Command Register
The Misc Command Register contains one bit that controls the PCI E Series analog trigger
source. The contents of this register are cleared upon power up and after a reset condition.
Address:
Base a 0F (hex)
Type:
Write-only
Word Size:
8-bit
Bit Map:
Bit
Name
Description
7
Int/Ext Trig
Internal/External Analog Trigger—This bit controls the
analog trigger source. If this bit is set, the output of the
PGIA2 is selected as the trigger source. If this bit is
cleared, the TRIG1 signal from the I/O connector is
selected as the trigger source.
6–0
Reserved
Reserved—Always write 0 to these bits.
7
6
5
4
3
2
1
0
Int/Ext Trig
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved