AD9398
Rev. 0 | Page 17 of 44
Hex Address
Read/Write
or Read
Only
Bits
Default
Value
Register Name
Description
[5]
**0*****
Low Freq Mode
Sets audio PLL to low frequency mode. Low frequency
mode should only be set for pixel clocks <80 MHz.
[4]
***0****
Low Freq Override
Allows the previous bit to be used to set low frequency
mode rather than the internal auto-detect.
[3]
****0***
Up Conversion Mode
0 = repeat Cr and Cb values.
1 = interpolate Cr and Cb values.
[2]
*****0**
CrCb Filter Enable
Enables the FIR filter for 4:2:2 CrCb output.
[1]
******0*
CSC_Enable
Enables the color space converter (CSC). The default
settings for the CSC provide HDTV-to-RGB conversion.
Sets the fixed point position of the CSC coefficients,
including the A4, B4, C4 offsets.
0x35
Read/Write
[6:5]
*01* ****
CSC_Mode
00 = ±1.0, 4096 to +4095.
01 = ±2.0, 8192 to +8190.
1× = ±4.0, 16384 to +16380.
[4:0]
***01100
CSC_Coeff_A1 MSB
MSB, Register 0x36.
0x36
Read/Write
[7:0]
01010010
CSC_Coeff_A1 LSB
Color space converter (CSC) coefficient for equation:
ROUT = (A1 × RIN) + (A2 × GIN) + (A3 × BIN) + A4
GOUT = (B1 × RIN) + (B2 × GIN) + (B3 × BIN) + B4
B
OUT
= (C1 × RIN) + (C2 × GIN) + (C3 × BIN) + C4
0x37
Read/Write
[4:0]
***01000
CSC_Coeff_A2 MSB
MSB, Register 0x38.
0x38
Read/Write
[7:0]
00000000
CSC_Coeff_A2 LSB
CSC coefficient for equation:
ROUT = (A1 × RIN) + (A2 × GIN) + (A3 × BIN) + A4
GOUT = (B1 × RIN) + (B2 × GIN) + (B3 × BIN) + B4
B
OUT
= (C1 × RIN) + (C2 × GIN) + (C3 × BIN) + C4
0x39
Read/Write
[4:0]
***00000
CSC_Coeff_A3 MSB
MSB, Register 0x3A.
0x3A
Read/Write
[7:0]
00000000
CSC_Coeff_A3 LSB
CSC coefficient for equation:
ROUT = (A1 × RIN) + (A2 × GIN) + (A3 × BIN) + A4
GOUT = (B1 × RIN) + (B2 × GIN) + (B3 × BIN) + B4
B
OUT
= (C1 × RIN) + (C2 × GIN) + (C3 × BIN) + C4
0x3B
Read/Write
[4:0]
***11001
CSC_Coeff_A4 MSB
MSB, Register 0x3C.
0x3C
Read/Write
[7:0]
11010111
CSC_Coeff_A4
CSC coefficient for equation:
ROUT = (A1 × RIN) + (A2 × GIN) + (A3 × BIN) + A4
GOUT = (B1 × RIN) + (B2 × GIN) + (B3 × BIN) + B4
B
OUT
= (C1 × RIN) + (C2 × GIN) + (C3 × BIN) + C4
0x3D
Read/Write
[4:0]
***11100
CSC_Coeff_B1 MSB
MSB, Register 0x3E.
0x3E
Read/Write
[7:0]
01010100
CSC_Coeff_B1 LSB
CSC coefficient for equation:
ROUT = (A1 × RIN) + (A2 × GIN) + (A3 × BIN) + A4
GOUT = (B1 × RIN) + (B2 × GIN) + (B3 × BIN) + B4
B
OUT
= (C1 × RIN) + (C2 × GIN) + (C3 × BIN) + C4
0x3F
Read/Write
[4:0]
***01000
CSC_Coeff_B2 MSB
MSB, Register 0x40.
0x40
Read/Write
[7:0]
00000000
CSC_Coeff_B2 LSB
CSC coefficient for equation:
ROUT = (A1 × RIN) + (A2 × GIN) + (A3 × BIN) + A4
GOUT = (B1 × RIN) + (B2 × GIN) + (B3 × BIN) + B4
B
OUT
= (C1 × RIN) + (C2 × GIN) + (C3 × BIN) + C4
0x41
Read/Write
[4:0]
***11110
CSC_Coeff_B3 MSB
MSB, Register 0x42.
0x42
Read/Write
[7:0]
10001001
CSC_Coeff_B3 LSB
CSC coefficient for equation:
ROUT = (A1 × RIN) + (A2 × GIN) + (A3 × BIN) + A4
GOUT = (B1 × RIN) + (B2 × GIN) + (B3 × BIN) + B4
B
OUT
= (C1 × RIN) + (C2 × GIN) + (C3 × BIN) + C4
0x43
Read/Write
[4:0]
***00010
CSC_Coeff_B4 MSB
MSB, Register 0x44.