AK8825 Datasheet, PDF (137/162 Pages) Asahi Kasei Microsystems – HD/SD Multi Format Video Encoder with 3ch DAC

I/O Data Format Register (R/W) [Sub Address 0x0B]
[Common Register for all Function block]
to set input / output configuration
Sub Address 0x0B
bit 7
bit 6
HDSDMASE YC2RGB
0
0
bit 5
Reserved
0
bit 4
bit 3
DTFMT CONVMOD1
Default Value
0
0
bit 2
CONVMOD0
0
[AK8825]
default Value 0x00
bit 1
bit 0
INPFMT1
INPFMT0
0
0
BIT Register Name
R/W
Definition
to set input data bit width format
bit 0
~
bit 1
INPFMT0
~
INPFMT1
Input Data Format bit
[INPFMT1: INPFMT0]
R/W
00: 8bit data input
01: 16bit data input
10: 18bit data input
11: prohibited to set
to select encoding block
CONVMOD[1:0]=
00: to select Composite Video Encoder Block
Component Video Encoder Block becomes sleep mode
bit 2
~
bit 3
CONVMOD0
~
CONVMOD1
Convert Module Select
bit
R/W
automatically.
01: to select Component Video Encoder Block
Composite Video Encoder Block becomes sleep mode
automatically.
10: to select High Speed DAC Block
Composite Video Encoder Block and Component Video
Encoder Block becomes sleep mode automatically.
11: Prohibited to set
to set Input data format
bit 4
DTFMT
Data Format bit
R/W 0: YCbCr data
1: RGB data
bit 5 Reserved Reserved bit
R/W Reserved, write “0 “.
to set YCbCr to RGB data conversion
bit 6 YC2RGB YCbCr to RGB bit
R/W
This mode only work at CONVMOD[1:0]=01.
0: no conversion
1: YCbCr to RGB conversion is worked
to set self-sync mode* in case of HDBBG-bit / HDCBG-bit /
bit 7
HDSDMASE
HD/SD Master mode
Enable bit
R/W
SDBBG-bit / SDCBG-bit is set.
self-sync mode: working without HD/VD and EAV timing signal
0: no self-sync mode.
1: self-sync mode
Rev-E-00
137
2008/03