AK8817 Datasheet, PDF (35/43 Pages) Asahi Kasei Microsystems – NTSC/PAL Digital Video Encoder

ASAHI KASEI
Control 1 Register (R/W) [Address 0x00]
[AK8817]
Sub Address 0x00
bit 7
bit 6
DAC
BBG
0
0
bit 5
CBG
0
bit 4
bit 3
MASMD
WSS
Default Value
0
0
bit 2
VBID
0
Default Value 0x00
bit 1
bit 0
SCR
VMOD
0
0
Control 1 Register Definition
BIT Register Name
bit 0
VMOD
Video Mode bit
bit 1
SCR
Sub-Carrier Reset bit
bit 2
VBID
VBID Set bit
bit 3
WSS
WSS Set bit
bit 4
MASMD
Master Mode bit
Color Bar Generator
bit 5
CBG
bit
bit 6
BBG
Black Burst Generator
bit
bit 7
DAC
DAC Set bit
R/W
Definition
R/W ^{0: NTSC}
1: PAL
R/W ^{0 : Sub-Carrier Reset}
1 : Sub-Carrier Reset off
R/W ^{0 : VBID OFF}
1 : VBID ON
R/W
0 : WSS OFF
1 : WSS ON
Master Mode bit to set Sync mode when Color Bar signal and
Black Burst signal are generated
0 : operation by an external Sync timing
R/W 1 : operation by an internal self-operating mode ( master
mode )
note ) Master mode bit is still valid in normal data input, but
output video is not synchronized.
0: OFF
R/W 1: ON
when BBG is set, BBG is prioritized.
R/W
0 : OFF
1 : ON
R/W
0 : DAC OFF
1 : DAC ON
MS0413-E-00
35
2005 / Aug