PEDL87V21071-01
OKI Semiconductor
ML87V21071
2.3.10 Noise Level Read Registers (read only)
SUB_ADDRESS = 58h(R): Luminance noise average value level read register
DATA_BIT
BIT7
BIT6
BIT5
BIT4
BIT3
YAVRO
3
BIT2
BIT1
1
BIT0
0
Register name
YDTO1
6
5
4
2
SUB_ADDRESS = 59h(R): Chrominance noise average value level read register
DATA_BIT
BIT7
BIT6
BIT5
BIT4
BIT3
CAVRO
3
BIT2
BIT1
1
BIT0
0
Register name
CDTO1
6
5
4
2
SUB_ADDRESS = 5Ah(R): Luminance noise maximum value level read register
DATA_BIT
BIT7
BIT6
BIT5
BIT4
BIT3
3
BIT2
YMAXO
2
BIT1
1
BIT0
0
Register name
YDTO2
0
0
4
SUB_ADDRESS = 5Bh(R): Chrominance noise maximum value level read register
DATA_BIT
BIT7
BIT6
BIT5
BIT4
BIT3
3
BIT2
CMAXO
2
BIT1
1
BIT0
0
Register name
CDTO2
0
0
4
SUB_ADDRESS = 5Ch(R): Luminance base noise average value level read register
DATA_BIT
BIT7
BIT6
BIT5
BIT4
BIT3
YBAVRO
3
BIT2
2
BIT1
1
BIT0
0
Register name
YBDTO
6
5
4
SUB_ADDRESS = 5Dh(R): Chrominance base noise average value level read register
DATA_BIT
BIT7
BIT6
BIT5
BIT4
BIT3
CBAVRO
3
BIT2
2
BIT1
1
BIT0
0
Register name
CBDTO
6
5
4
YAVRO[6:0] Read value range: 000_0000 to 111_1111
Luminance noise level of 8 frames average (YNAMS = 0), or of 1 frame (YNAMS = 1), of noise
absolute value average of lines detected at NRDTON = 1
Updated every frame. 7Fh is read out if the noise level exceeds 7Fh.
YAVRO[6:4] is an integral part and YAVRO[3:0] is a decimal part.
CAVRO[6:0] Read value range: 000_0000 to 111_1111
Chrominance noise level of 8 frames average (CNAMS = 0), or of 1 frame (CNAMS = 1), of noise
absolute value average of lines detected at NRDTON = 1
Updated every frame. 7Fh is read out if the noise level exceeds 7Fh.
CAVRO[6:4] is an integral part and CAVRO[3:0] is a decimal part.
YDTO1 Read value range: 0 to 1
Luminance Noise Detection Flag
At NRDTON = 1, YDTO1 is set to “1” if YAVRO[6:0] > YAVR1[5:0] state continues in 4 frames.
CDTO1 Read value range: 0 to 1
Chrominance noise detection flag.
At NRDTON = 1, CDTO1 is set to “1” if CAVRO[6:0] > CAVR1[5:0] state continues in 4 frames.
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