AK8857VQ Datasheet, PDF (83/105 Pages) Asahi Kasei Microsystems – Dual Channel Digital Video Decoder

[AK8857VQ]
Image Control Register (R/W) [Sub Address 0x08] (Common register)
Sharpness control, Luminance bandwidth filter control, Sepia color output setting and VBI interval
setting register.
R/W block is depends on REGSEL setting of Sub-Address “0x00”.
Sub Address 0x08
bit 7
bit 6
VBIIMGCTL SEPIA
Default Value
0
0
bit 5
LUMFIL1
0
bit 4
LUMFIL0
0
bit 3
SHCORE1
0
bit 2
SHCORE0
0
Default Value : 0x00
bit 1
bit 0
SHARP1 SHARP0
0
0
Image Control Register Definition
Bit Register Name
bit 0 SHARP0
~
~
bit 1 SHARP1
Sharpness Control
bit 2 SHCORE0
~
~
bit 3 SHCORE1
Sharpness Coring
bit 4 LUMFIL0
~
~
bit 5 LUMFIL1
Luminance Filter
bit 6 SEPIA
Sepia Output
bit 7 VBIIMGCTL
VBI Image Control
R/W Definition
Sharpness control (filter effect) setting
[ SHARP1 : SHARP0 ]
[00] : No filtering
R/W
[01] : Min effect
[10] : Middle effect
[11] : Max effect
Setting for level of coring after passage through
sharpness filter
Enabled except with [SHARP1:SHARP0]
register setting of [00]
R/W ^{[ SHCORE1 : SHCORE0 ]}
[00] : No coring
[01] : ±1LSB
[10] : ±2LSB
[11] : ±3LSB
Setting for luminance band limit filter
[ LUMFIL1 : LUMFIL0 ]
[00] : No filtering
R/W
[01] : Narrow
[10] : Mid
[11] : Wide
Setting (ON/OFF) for sepia coloring of decode
results *
R/W
[0]: Normal output
[1]: Sepia output
Setting (ON/OFF) for image adjustment during
brightness and contrast adjustment VBI*
R/W _{[0]: Image adjustment inactive during VBI}
[1]: Image adjustment active during VBI
* DOA register of Sub-address “0x10” and DOB register of Sub-address “0x28” setting takes priority
regardless to above SEPIA register setting.
MS1189-E-01
-83-
2010/12