National Instruments 653X User Manual page 115

RTSI and PXI Bus Triggers
If you configure a signal to be received from the RTSI bus, do not attach it to an
Note
external source. Also, do not configure the 653X device to generate that signal internally.
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The seven RTSI lines on the RTSI bus provide a very flexible
interconnection scheme for any device sharing the RTSI or PXI-trigger bus.
Any control signal on the device can connect to a RTSI or PXI-trigger bus
line. You can drive output control signals onto the bus and receive input
control signals from the bus. Figure D-6 shows the signal connection
scheme.
Trigger
7
Figure D-6. RTSI Bus Signal Connection
Appendix D
20 MHz Timebase
D-11
Hardware Considerations
DAQ-DIO
REQ<1..2>
2
ACK<1..2>
(STARTTRIG<1..2>)
2
STOPTRIG<1..2>
2
PCLK<1..2>
2
Switch
653X User Manual