Software Trigger Register; Trigger Control Register - HP E1418A User Manual

Software Trigger
Register
Address
Base + 0C
16
Trigger Control
Register
Bit
Address
READ
Base + 0E
16
WRITE
Appendix B
The Software Trigger Register provides a means to trigger the module when
software trigger has been selected as the trigger source in the Trigger
Control Register.
Bit 15 14 13 12
WRITE
Software Trigger: When software trigger is selected as the trigger source
in the Trigger Control Register, any write to this register generates the
trigger (the value written is not important).
The Trigger Control Register selects the sources, destinations, and modes
used to synchronize channels programmed for triggered operation.
15 14 13 12
Trig Unused
Syst En
Trig Syst En: Writing a one (1) to this field enables the trigger system.
Writing a zero (0) disables the trigger system.
Trigger Out: This field selects which VXIbus trigger line will be driven when
the trigger mode is set to Output. The trigger lines selected are shown below.
Trigger Mode: This field selects the operating mode for trigger-enabled
channels.
11 10 09 08 07
Software Trigger
11 10 09 08 07
Trigger Out
Line Out Selected
TTLTRIG0*
TTLTRIG1*
TTLTRIG2*
TTLTRIG3*
TTLTRIG4*
TTLTRIG5*
TTLTRIG6*
TTLTRIG7*
Trigger Mode
SYNC
OUTPUT
HP E1418A Register-Based Programming
06 05 04 03 02 01
06 05 04 03 02 01
Trigger Trigger Source
Mode
Bits
08 07 06
0 0 0
0 0 1
0 1 0
0 1 1
1 0 0
1 0 1
1 1 0
1 1 1
Bits
05 04
0 0
1 1
00
00
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