AK8851 Datasheet, PDF (66/80 Pages) Asahi Kasei Microsystems – NTSC/PAL/SECAM Digital Video Decoder

ASAHI KASEI
Contrast Control Register (R/W) [Sub Address 0x0E]
Register to set Contrast adjustment.
Default value ( 0x80 ) corresponds to un-adjusted condition.
Sub Address 0x0E
bit 7
bit 6
CONT7
CONT6
1
0
bit 5
CONT5
0
bit 4
bit 3
CONT4
CONT3
Default Value
0
0
bit 2
CONT2
0
[AK8851]
Default Value : 0x80
bit 1
bit 0
CONT1
CONT0
0
0
Contrast Control Register Definition
BIT Register Name
bit 0
CONT0
~
~
Contrast Control
bit 7
CONT7
R/W Definition
Contrast adjustment range is 0 to 2 by 1/256 steps.
R/W
Brightness Control Register (R/W) [Sub Address 0x0F]
Register to set Brightness adjustment.
Default value ( 0x00 ) corresponds to un-adjusted condition.
Sub Address 0x0F
Default Value : 0x80
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
BR7
BR6
BR5
BR4
BR3
BR2
BR1
BR0
Default Value
0
0
0
0
0
0
0
0
Brightness Control Register Definition
BIT Register Name
bit 0
BR0
~
~
Brightness Control
bit 7
BR7
R/W Definition
Brightness level is defined following formula
R/W Setting is done with 2’s Complement value.
MS0244-E-03
66
Confidential
2005 / 07