ak8825 AKM Semiconductor, Inc., ak8825 Datasheet - Page 43

• Manufacturer Part Number: ak8825
• Description: Hd/sd Multi Format Video Encoder With 3ch Dac
• Manufacturer: AKM Semiconductor, Inc.

■ WSS
SD/HD V-Blanking Control Register
Sub Address 0x12
HD Block Control Register
Sub Address 0x07
WSS Data Up-date Timing
Rev-E-00
of this function is controlled by WSSEN-bit of SD/HD V-Blanking Control Register (R/W) [Sub Address 0x12] at Composite
Video Encoder mode, HDWSS-bit of HD Block Control Register (R/W)[Sub Address 0x07] .
Setting data is set to SD WSS Data 1/2 Register(R/W) [Sub Address 0x18 / 0x19] at composite Video Encoder mode, and HD
WSS Data 1/2 Register (R/W) [Sub Address 0x08/0x09] at Component Video Encoder mode.
WSS Data1: Composite Video Encoder mode SubAddress 0x18 / Component Video Encoder mode 0x08
WSS Data2: Composite Video Encoder mode SubAddress 0x19 / Component Video Encoder mode 0x09
The AK8825 supports to encode WSS (ITU-R. Bt1119), IEC62375 which distinguish the Aspect Ratio etc. Turning “ON/OFF”
Reserved
HDWSS
VSYNC
bit 7
bit 7
DATA
I
2
C SDA
HDCFLT1
Reserved
bit 6
bit 6
HDCFLT0
Reserved
bit 5
bit 5
WSS Data1
HDYFLT1
Reserved
bit 4
bit 4
Set Control Register
OLD DATA
Fig. 34
43
HDYFLT0
WSS Data2
bit 3
SDWSS
bit 3
Reserved
SDHDCC284
bit 2
bit 2
COLSNCEN
SDHDCC21
bit 1
bit 1
Default Value 0x00
default Value 0x00
NEW DATA
HDVRATIO
SDVBID
bit 0
bit 0
2008/03
[AK8825]