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Chapter 5 Counter Signal Routing and Clock Generation
Using RTSI as Outputs
RTSI <0..7> are bidirectional terminals. As an output, you can drive any of the following signals
to any RTSI terminal:
• DI Start Trigger (di/StartTrigger)
• DI Sample Clock (di/SampleClock)
• DI Pause Trigger (di/PauseTrigger)
• DI Reference Trigger (di/ReferenceTrigger)
• DO Start Trigger (do/StartTrigger)
• DO Sample Clock
*
(do/SampleClock)
• DO Pause Trigger (do/PauseTrigger)
• 10 MHz Reference Clock
• Counter n Source, Gate, Z, Internal Output
• Change Detection Event
• FREQ OUT
• PFI <0..39>
Note Signals with a
*
are inverted before being driven on the RTSI terminals.
Using RTSI Terminals as Timing Input Signals
You can use RTSI terminals to route external timing signals to many different NI 6612
functions. Each RTSI terminal can be routed to any of the following signals:
• Counter input signals for all counters—Source, Gate, Aux, HW_Arm, A, B, or Z
• DI Sample Clock (di/SampleClock)
• DI Start Trigger (di/StartTrigger)
• DI Pause Trigger (di/PauseTrigger)
RTSI 3 26
RTSI 2 24
RTSI 1 22
RTSI 0 20
Not Connected. Do not connect signals to
these terminals.
1 to 18
D GND 19, 21, 23, 25, 27, 29, 31, 33
Table 5-4. RTSI Signals (Continued)
RTSI Bus Signal Terminal
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