AK8858 Datasheet, PDF (84/96 Pages) Asahi Kasei Microsystems – PS/SD Multi Format Video Decoder

[9.1.22] Saturation / U Tone Control Register (R/W) [Sub Address 0x15]
Saturation adjustment registers setting.
If YPbPr signal input, U tone level adjustment register setting.
[AK8858]
Sub Address: 0x15
bit 7
bit 6
SAT7
SAT6
UTONE7 UTONE6
Default Value
1
0
bit 5
SAT5
UTONE5
0
bit 4
SAT4
UTONE4
0
bit 3
SAT3
UTONE3
0
bit 2
SAT2
UTONE2
0
Default Value: 0x80
bit 1
bit 0
SAT1
SAT0
UTONE1 UTONE0
0
0
Saturation / U TONE Control Register
BIT Register Name
bit 0 SAT0
~~
bit 7 SAT7
Saturation Control
R/W Definition
Register for saturation level adjustment in steps of 1/128
R/W in range 1~255/128 from default value of 0x80
(CVBS or S-video input)
bit 0 UTONE0
~~
bit 7 UTONE7
U Tone Control
Register for U tone level adjustment in steps of 1/128
R/W in range 1~255/128 from default value of 0x80
(YPbPr input)
If component mode, UTONE default value should be changed to following parameter.
UTONE [7:0] =0x70
[9.1.23] V Tone Control Register (R/W) [Sub Address 0x16]
YPbPr signal input, V tone level adjustment register setting.
Sub Address: 0x16
bit 7
bit 6
VTONE7 VTONE6
Default Value
1
0
bit 5
VTONE5
0
bit 4
VTONE4
0
bit 3
VTONE3
0
bit 2
VTONE2
0
Default Value: 0x80
bit 1
VTONE1
bit 0
VTONE0
0
0
V TONE Control Register
BIT Register Name
R/W Definition
bit 0 VTONE0
~
~
bit 7 VTONE7
V Tone Control
Register for V tone level adjustment in steps of 1/128
R/W in range 1~255/128 from default value of 0x80
(YPbPr or RGB input)
If component mode, VTONE default value should be changed to following parameter.
VTONE [7:0] =0x9D
MS1230-E-00
- 84 -
2010/9