402-00005-00
Registers
3–40
Rev 02; February 8, 2002
3.4.6.4 Trigger Cycle Status (TRIGCYC) R-O
This bit reflects the status of the trigger cycle.
TRGCYC
Function
0
No trigger cycle in progress
1
Trigger cycle in progress
3.4.6.5 Skip Field Mode (SKPFLDMD) R/W
This bit forces a triggered acquisition to skip one field after an external trigger cycle. The Programmable Window
Generator (PWG) waits for one field before acquiring the number of fields indicated by the SMODE bit. This mode
is useful with cameras that require a one field delay after a frame reset.
SKPFLDMD
Function
0
Disable skip field mode
1
Enable skip field mode
3.4.6.6 WEN Mode (WENMD) R/W
This bit enables a frame reset mode that uses the camera WEN input for vertical and ignores the vertical sync or
vertical drive (VSYNC, VDrive or VD) output from the camera.
WENMD
Function
0
Disable WEN mode
1
Enable WEN mode
3.4.6.7 Strobe Mode Select (STRBMD) R/W
This bit selects fast strobe or slow strobe mode. The strobe pulse output is always one horizontal line duration.
In Fast Strobe mode, a 1-line strobe output pulse occurs immediately after the external trigger input starts the trigger
cycle, if the trigger does not fire during the “no-strobe” region defined by the STRBDLY register. If the external
trigger does occur during the no-strobe region, the strobe pulse is output at the end of the no-strobe region (strobe
delay counter reaches zero).
In Slow Strobe mode, a 1-line strobe output pulse occurs after the programmed amount of lines defined by the
STRBDLY register, after vertical sync.
STRBMD
Function
0
Fast strobe mode
1
Slow strobe mode
3.4.6.8 Strobe Polarity Select (STRBPOL) R/W
This bit selects the polarity of the strobe output. The strobe output driver is always enabled. If STRBEN disables the
pulse output, the driver assumes the inactive state defined by this bit.
STRBPOL
Function
0
Strobe output active high pulse (low inactive)
1
Strobe output active low pulse (high inactive)
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