Chroma 2238 - Sync Signal Parameters

Video Pattern Generator 2238 User’s Manual
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 Vborder: The part is not included in general standard signals. It is only symmetrically and
slightly included in some special display types before and after the time of display to
show more picture section.
 Vf-porch: V front porch is a period of time from the end of Vdisplay to the start of Vsync.
Sync Signal Parameters
 H SYNC OUT: It specifies the horizontal sync signal output logic for the timing.
 V SYNC OUT: It specifies the vertical sync signal output logic for the timing.
 X STNC OUT: It specifies the composite sync signal output logic for the timing.
0 = ON(+)
1 = ON(-)
2 = OFF-LOW
0V
0V
0V
3 = OFF-HIGH
4 = 3D SYNC
0V
 XS SELECT: It specifies the HS&VS logic composition of XS signal for the timing.
Selection
Description
0
VSYNC WIDTH
HS
VS
HS + VS
HS EXOR VS
SERR
NON-INTERLACED
SERR
INTERLACED
1
2
3
4
● XS SELECT: It specifies the XS signal for the timing when the XS SELECT is set to 3D
SYNC.
Selection
Description
0
1