Cirrus Logic CS1631 User Manual
Page 51
CS1630/31
DS954F3
51
6.45 Channel 1 Color Calibration 3A (CH1_CAL3A)
–
Address 119
6.46 Channel 2 Color Calibration 3A (CH2_CAL3A)
–
Address 120
6.47 CRC Memory Tag 3A (CRC_MTAG3A)
–
Address 121
CRC Memory Tag 3A register used by the color control system. To activate the use of this register the SET_3A
bit must be programmed to ‘1’ (see "Channel 1 Color Calibration 3A (CH1_CAL3A) – Address 119" on page 51).
The CRC value is obtained by computing the CRC value for the registers at address 119 and 120.
7
6
5
4
3
2
1
0
SET_3A
-
CH1_CAL3A5 CH1_CAL3A4 CH1_CAL3A3 CH1_CAL3A2 CH1_CAL3A1 CH1_CAL3A0
Number
Name
Description
[7]
SET_3A
Configures the color control system to use the color calibration values in
memory tag 3A.
0 = Disables the use of memory tag 3A
1 = Enables the use of memory tag 3A
[6]
-
Reserved
[5:0]
CH1_CAL3A[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_CAL3A[5:0]31. The calibration current gain is given by:
7
6
5
4
3
2
1
0
-
-
CH2_CAL3A5 CH2_CAL3A4 CH2_CAL3A3 CH2_CAL3A2 CH2_CAL3A1 CH2_CAL3A0
Number
Name
Description
[7:6]
-
Reserved
[5:0]
CH2_CAL3A[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_CAL3A[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_CAL3A[5:0] 0.00488
+
1
CH2_CAL3A[5:0] 0.00488
+