ADLINK PCI-9846 - Manual (Page 58)

48 Operation Theory
3.7.2 SSI_TRIG1
As an output, the SSI_TRIG1 signal reflects the trigger event sig-
nal in an acquisition sequence. You can use the function
SSI_SourceConn() to output the SSI_TRIG1 signal.
As an input, the PCI/PXI-9816/26/46 accepts the SSI_TRIG1 sig-
nal to be the trigger event source. The signal is configured in the
rising edge-detection mode. When selecting the trigger sources of
the PCI/PXI-9816/26/46, you can select TRSRC_SSI_1 to set
SSI_TRIG1 as the source of trigger event.
Figure 3-21: SSI_TRIG1 Input and Output Timing Characteristics
SSI_TRIG1
(Output)
Two
Two = 3-4 TIMEBASE Clocks
SSI_TRIG1
(Input)
Twi
Twi = 20 ns minimum