MB87P2020 Datasheet, PDF (141/356 Pages) Fujitsu Component Limited. – Colour LCD/CRT/TV Controller

vref
field
input data
111
100
011
odd even
Video Interface Controller
Figure 3-3: Reducing data rate by skipping fields (examples)
bit 21 (FRAME):
The FRAME flag controls the storage format of input video in video RAM. If FRAME is set to 1, a complete
frame (even and odd field) will be saved interlocked in each video layer. In case of FRAME=0 every layer
contains one field and interleaced to progressive format conversion can be done in output process (line dou-
bling).
Related registers: VICFCTRL[18:16], VICFCTRL[20], VICFCTRL[22], VICPCTRL[2] or EXTPCTRL[2]
in association with VICVISYN[1:0]
VICSTART[13:0]
frame mode
layer
field1
field2
field mode
layer
Figure 3-4: Frame mode vs. field mode
bit 22:
ODDFST (odd field first) determines the position of the fields in a frame related to time. The following fig-
ure illustrates the issue. This flag has no relevance if VICFCTRL[21]is set to 0.
VIC settings
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