Datasheet

Data Sheet ADP8861
Rev. B | Page 31 of 40
Backlight Dim Current Register (BLDM)—Register 0x0A
Table 29. BLDM Bit Map
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Reserved BL_DC
Table 30. Bit Descriptions for the BLDM Register
Bit Name Bit No. Description
N/A 7 Reserved.
BL_DC [6:0]
Backlight dim current. The backlight is set to the dim current value after a dim timeout or if the DIM_EN
flag is set by the user (see Table 28 for a complete list of values).
DAC Linear Law (mA) Square Law (mA)
0000000 0 0.000
0000001 0.236 0.002
0000010 0.472 0.007
0000011 0.709 0.017
…
…
…
1111111 30 30
INDEPENDENT SINK REGISTER DESCRIPTIONS
Independent Sink Current Fade Control Register (ISCFR)—Register 0x0F
Table 31. ISCFR Bit Map
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Reserved SC_LAW
Table 32. Bit Descriptions for the ISCFR
Bit Name Bit No. Description
N/A [7:2] Reserved
SC_LAW [1:0] Independent sink current fade transfer law
00 = linear law DAC, linear time steps
01 = square law DAC, linear time steps
10 = square law DAC, nonlinear time steps (Cubic 10)
11 = square law DAC, nonlinear time steps (Cubic 11)
Independent Sink Current Control (ISCC)—Register 0x10
Table 33. ISCC Bit Map
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Reserved SC7_EN SC6_EN SC5_EN SC4_EN SC3_EN SC2_EN SC1_EN
Table 34. Bit Descriptions for the ISCC Register
Bit Name Bit No. Description
N/A 7 Reserved
SC7_EN 6 This enable acts upon LED7
1 = SC7 is turned on
0 = SC7 is turned off
SC6_EN 5 This enable acts upon LED6
1 = SC6 is turned on
0 = SC6 is turned off
SC5_EN 4 This enable acts upon LED5
1 = SC5 is turned on
0 = SC5 is turned off