Cirrus Logic CS1631 User Manual
Page 52
CS1630/31
52
DS954F3
6.48 Channel 1 Color Calibration 3B (CH1_CAL3B)
–
Address 122
6.49 Channel 2 Color Calibration 3B (CH2_CAL3B)
–
Address 123
6.50 CRC Memory Tag 3B(CRC_MTAG3B)
–
Address 124
CRC Memory Tag 3B register used by the color control system. To activate the use of this register the SET_3B
bit must be programmed to ‘1’ (see "Channel 1 Color Calibration 3B (CH1_CAL3B) – Address 122" on page 52).
The CRC value is obtained by computing the CRC value for the registers at address 122 and 123.
7
6
5
4
3
2
1
0
SET_3B
-
CH1_CAL3B5 CH1_CAL3B4 CH1_CAL3B3 CH1_CAL3B2 CH1_CAL3B1 CH1_CAL3B0
Number
Name
Description
[7]
SET_3B
Configures the color control system to use the color calibration values in
memory tag 3B.
0 = Disables the use of memory tag 3B
1 = Enables the use of memory tag 3B (Takes priority over SET_3A=1)
[6]
-
Reserved
[5:0]
CH1_CAL3B[5:0]
Channel 1 color control system calibration value that scales the current of
channel 1 within ±15%. The value is a two’s complement integer in the range
of -32
CH1_CAL3B[5:0]31. The calibration current gain is given by:
7
6
5
4
3
2
1
0
-
-
CH2_CAL3B5 CH2_CAL3B4 CH2_CAL3B3 CH2_CAL3B2 CH2_CAL3B1 CH2_CAL3B0
Number
Name
Description
[7:6]
-
Reserved
[5:0]
CH2_CAL3B[5:0]
Channel 2 color control system calibration value that scales the current of
channel 2 within ±15%. The value is a two’s complement integer in the range
of -32
CH2_CAL3B[5:0]31. The calibration current gain is given by:
7
6
5
4
3
2
1
0
2
7
2
6
2
5
2
4
2
3
2
2
2
1
2
0
1
CH1_CAL3B[5:0] 0.00488
+
1
CH2_CAL3B[5:0] 0.00488
+