Datasheet

2−23
2.20.12 Hue Control Register
(does not apply to SECAM)
Address 0Bh
Default 00h
7 6 5 4 3 2 1 0
Hue control
Hue control:
0111 1111 = +180 degrees
0000 0000 = 0 degrees (default)
1000 0000 = −180 degrees
2.20.13 Contrast Control Register
Address 0Ch
Default 80h
7 6 5 4 3 2 1 0
Contrast control
Contrast control:
1111 1111 = 255 (maximum contrast)
1000 0000 = 128 (default)
0000 0000 = 0 (minimum contrast)
2.20.14 Outputs and Data Rates Select Register
Address 0Dh
Default 47h
7 6 5 4 3 2 1 0
Reserved
YCbCr output code
range
CbCr code format YCbCr data path bypass YCbCr output format
YCbCr output code range:
0 = ITU-R BT.601 coding range (Y ranges from 16 to 235. U and V range from 16 to 240)
1 = Extended coding range (Y, U, and V range from 1 to 254) (default)
CbCr code format:
0 = Offset binary code (2s complement + 128) (default)
1 = Straight binary code (2s complement)
YCbCr data path bypass:
00 = Normal operation (default)
01 = Decimation filter output connects directly to the YCbCr output pins. This data is similar to the digitized
composite data, but the HBLANK area is replaced with ITU-R BT.656 digital blanking.
10 = Digitized composite (or digitized S-video luma). A/D output connects directly to the YCbCr output pins.
11 = Reserved