AK8859VQ Datasheet, PDF (59/73 Pages) Asahi Kasei Microsystems – NTSC/PAL/SECAM Digital Video Decoder

[AK8859VQ]
[9.1.14.] Sub Address 0x0D “Contrast Control Register (R/W)”
Contrast adjustment setting register.
Sub Address: 0x0D
bit 7
bit 6
Reserved
CONT6
Default Value
0
1
bit 5
CONT5
0
bit 4
CONT4
0
bit 3
CONT3
0
bit 2
CONT2
0
Default Value: 0x40
bit 1
bit 0
CONT1 CONT0
0
0
Contrast Control Register Definition
Bit ^Register
R/W
Name
Definition
Contrast adjustment setting
[If CONTSEL-bit =[0]]
YOUT = (CONT / 64) x ( YIN - 128) +128
bit 0 CONT0
~
~
bit 6 CONT6
Contrast
Control
[If CONTSEL-bit =[1]]
YOUT = (CONT / 64) X YIN
R/W
YOUT: Contrast obtained by the calculation
YIN: Contrast before the calculation
CONT: Contrast gain factor (register setting value)
bit 7 Reserved
Reserved
Register for contrast adjustment in steps of 1/64 in range {0~
(127 / 64)}.
Default value is 0x40.
R/W Reserved
MS1178-E-00
AKM Confidential
- 59 -
2010/04