ak8825 AKM Semiconductor, Inc., ak8825 Datasheet - Page 141

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

SD Block Control Register (R/W) [Sub Address 0x11]
[Composite Video Encoder Block]
to set Output signals
Sub Address 0x11
SDVM3 – SDVM0 settings for each Standard are as follows.
Rev-E-00
bit 0
bit 3
bit 4
bit 5
bit 6
bit 7
BIT
~
SDBBG
bit 7
NTSC
PAL-B,D,G,H,I
PAL-M
PAL-60
NTSC-4.43
0
Register Name
SDSETUP
SDCBG
SDVM0
SDVM3
SDBBG
SCR
~
SDCBG
bit 6
0
Video Mode 0 Register
~
Video Mode 3 Register
Sub Carrier Reset bit
SD Setup-bit
SD
Generator Control bit
SD
Generator Control bit
SDVM3:SDVM0
Black
SDSETUP
Color
0000
1111
0101
0111
0011
bit 5
0
Burst
Bar
R/W
R/W
R/W
R/W
R/W
R/W
SCR
bit 4
1
Default Value
[ SDVM1 : SDVM0 ] – bit
00 : 3.57954545 MHz
01 : 3.57561188 MHz
10 : 3.5820558 MHz
11 : 4.43361875 MHz
[ SDVM3 : SDVM2 ] – bit
00 : 525 / 60
01: 525 / 60 PAL (PAL-M etc...)
10 : reserved
11 : 625 / 50 PAL ( PAL-B, D, G, H, I, N )
to set enable / disable reset of Sub-carrier for each color sequence
0: no sub-carrier reset is done.
1: sub-carrier reset is enabled.
NTSC: reset at every 2 Frames.
PAL: reset at every 4 Frames.
to set the Set-Up
0 : no set-up
1: 7.5 % set-up is added.
Even when the set-up is turned on, set-up (Pedestal) is not added
while Blanking Line is being output.
setting bit of On-Chip Color Bar
0: input data is encoded.
1: On-Chip Color Bar is output.
When SDBBG bit is set, SDBBG is prioritized.
Black Burst Generator bit
to output Black Burst signal
0: input data is encoded.
1: Black Burst signal is output.
Even when SDCBG bit is set, SDBBG is prioritized.
141
SDVM3
bit 3
0
SDVM2
bit 2
0
Definition
SDVM1
bit 1
0
Default Value 0x10
SDVM0
bit 0
2008/03
0
[AK8825]