STW8009_07 Datasheet, PDF (27/66 Pages) STMicroelectronics – Mobile video DENC

Control registers
STw8009/STw8019
Note:
freerun:
(*) 0 = disabled
1 = enabled
This bit is taken into account in ODDEV-only or VSYNC-only based slave modes and is
irrelevant for other synchronization modes.
REGISTER 1
configuration1
Address: 0x0001
Type: R/W
content
blkli
flt1
flt0
sync_ok coki
setup_
main
default
0
1
0
0
0
1
[0]
[0]
blkli: Vertical Blanking Interval selection for active video lines area
(*) 0 = (‘partial blanking’) Only the following lines inside Vertical Interval are blanked
NTSC-M:
lines [1; 9], [263(half); 272] (525-SMPTE)
PAL-M:
lines [523; 6], [260(half); 269] (525-CCIR)
Other PAL: lines [623(half); 5], [311; 318] (625-CCIR)
1 = “full blanking” All lines inside VBI are blanked
NTSC-M:
lines [1; 19], [263(half); 282] (525-SMPTE)
PAL-M:
lines [523; 16], [260(half); 279] (525-CCIR)
Other PAL: lines [623(half); 22], [311; 335] (625-CCIR)
flt[1:0]: U/V Chroma filter bandwidth selection
Table 6. Register 1
flt1 flt0
3dB bandwidth
Typical application
00
01
(*) 1 0
11
f-3dB=1.1MHz
f-3dB=1.3MHz
f-3dB=1.6MHz
f-3dB=1.9MHz
low def NTSC filter
low def PAL filter
high def. NTSC filter (ATSC compliant) & PAL
M/N (ITU-R 624.4 compliant)
high def. PAL filter: Rec 624 - 4 for PAL BDG/I
compliant.
sync_ok: availability of sync signals (analog and digital) in case of input synchronization
loss with no free-run active (i.e. freerun=0)
(*) 0 = no synchro output signals
1 = output synchro signals available on YS, CVBS and, when applicable, HSYNC (if
output port), ODDEV (if output port): i.e same behavior as free-run except that video
outputs are blanked in the active portion of the line.
coki: color killer
(*) 0 = color ON
1 = color suppressed on CVBS output signal (CVBS=YS) but color still present on C
output. For color suppression on chroma DAC ‘C’, see register 5 bit bkdac1.
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