CS1630 Datasheet, PDF (53/56 Pages) Cirrus Logic – 2-Channel TRIAC Dimmable LED Driver IC

CS1630/31
6.51 Channel 1 Color Calibration 3C (CH1_CAL3C) – Address 125
7
SET_3C
6
5
4
3
2
1
0
-
CH1_CAL3C5 CH1_CAL3C4 CH1_CAL3C3 CH1_CAL3C2 CH1_CAL3C1 CH1_CAL3C0
Number
Name
Description
Configures the color control system to use the color calibration values in
[7]
SET_3C
memory tag 3C.
0 = Disables the use of memory tag 3C
1 = Enables the use of memory tag 3C (Takes priority over SET_3B=1)
[ 6]
-
Reserved
[ 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
CH1_CAL3C[5:0] of -32CH1_CAL3C[5:0]31. The calibration current gain is given by:
1 + CH1_CAL3C[5:0]  0.00488
6.52 Channel 2 Color Calibration 3C (CH2_CAL3C) – Address 126
7
6
5
4
3
2
1
0
-
-
CH2_CAL3C5 CH2_CAL3C4 CH2_CAL3C3 CH2_CAL3C2 CH2_CAL3C1 CH2_CAL3C0
Number
Name
Description
[ 7:6 ]
-
Reserved
[ 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
CH2_CAL3C[5:0] of -32CH2_CAL3C[5:0]31. The calibration current gain is given by:
1 + CH2_CAL3C[5:0]  0.00488
6.53 CRC Memory Tag 3C (CRC_MTAG3C) – Address 127
7
6
5
4
3
2
1
0
2⁷
2⁶
2⁵
2⁴
2³
2²
2¹
2⁰
CRC Memory Tag 3C register used by the color control system. To activate the use of this register, the SET_3C
bit must be programmed to ‘1’ (see "Channel 1 Color Calibration 3C (CH1_CAL3C) – Address 125" on page 53).
The CRC value is obtained by computing the CRC value for the registers at address 125 and 126.
DS954F2
53