AK8826 Datasheet, PDF (144/157 Pages) Asahi Kasei Microsystems – HD/SD Multi Format Video Encoder with 3ch DAC

Closed Caption Data 1 Register (R/W) [Sub Address 0x26]
Closed Caption Data 2 Register (R/W) [Sub Address 0x27]
[AK8826VN]
[Component Video Encoder/ Composite Video Encoder Block]
to set Closed Caption Data
Sub Address 0x26
bit 7
bit 6
CC7
CC6
0
0
bit 5
CC5
0
bit 4
bit 3
CC4
CC3
Default Value
0
0
bit 2
CC2
0
default Value 0x00
bit 1
bit 0
CC1
CC0
0
0
Sub Address 0x27
bit 7
bit 6
CC15
CC14
0
0
bit 5
CC13
0
bit 4
bit 3
CC12
CC11
Default Value
0
0
bit 2
CC10
0
default Value 0x00
bit 1
bit 0
CC9
CC8
0
0
Note) Closed Caption Data is written in order of 0x26 and then 0x27.
When the second byte (0x27) of Closed Caption Data is written, the AK8826 interprets that Data has been up-dated and it
encodes the Data on the next Video Line.
Null Codes are automatically output on those, not-data-updated lines.
It is assumed that Parity bit of each Byte Data is added by the Host side.
MS0972-E-01
144
2008/12