AK8825 Datasheet, PDF (128/162 Pages) Asahi Kasei Microsystems – HD/SD Multi Format Video Encoder with 3ch DAC

HD Mode Register (R/W) [Sub Address 0x00]
[Component Video Encoder]
Register to set the AK8825 mode at Component Video Encoder mode
Sub Address 0x00
bit 7
bit 6
HDCBG
HDBBG
0
0
bit 5
HDSETUP
0
bit 4
bit 3
HDEAVDEC HDCEA861
Default Value
0
0
bit 2
HDMODE1
0
[AK8825]
default Value 0x00
bit 1
bit 0
HDMODE0 HDRFRSH
0
0
HD Mode Register (R/W) [Sub Address 0x00]
BIT Register Name
bit 0 HDRFRSH
Refresh Rate bit
bit1 HDMODE0
~
~
bit2 HDMODE1
Mode Set bit
bit3 HDCEA861
H/V timing std bit
bit 4 HDEAVDEC
bit 5 HDSETUP
bit 6
HDBBG
EAV Decode bit
HD Setup-bit
HD Black Burst bit
bit 7
HDCBG
HD Color Bar bit
R/W
Definition
to select refresh rate
R/W _{0 : 60Hz}
1 : 50Hz
to select input / output signals
[HDMODE1:HDMODE0]
R/W ^{00 : 525i/625i}
01 : 525p/625p
10 : 1080i
11 : 720p
to appoint relation when to synchronize with HSYNC / VSYNC
R/W
0: Data capture is done by the AK8825 timing.
1: it is done by the compatible timing specified in CEA 861B.
When EAVDEC: 1, this bit is ignored.
to select the AK8825 Sync mode
R/W 0 : to be synchronized with HSYNC / VSYNC signals
1 : to be synchronized with EAV
to set on / off of 7.5 % set-up
R/W 0: no set-up process is done.
1: set-up process is done.
to output Black Burst Signal ( SYNC Signal Output only )
R/W 0 : normal output
1: Black Burst Signal Output is enabled.
to output Color Bar Signal
R/W
0 : normal output
1: Color Bar Signal is output.
When HDBB bit is set, HDBB is prioritized.
Rev-E-00
128
2008/03