Datasheet

ADP8860
Rev. 0 | Page 47 of 52
Comparator Level 3 Threshold (L3_TRP)—Register 0x1F
Table 72. L3_TRP Bit Map
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
L3_TRP
Table 73. Bit Descriptions for the L3_TRP Register
Bit Name Bit No. Description
L3_TRP 7:0 Comparator Level 3 threshold. If the comparator input is below L3_TRP, the comparator trips and the
backlight enters Level 3 (dark) mode. The following lists the code settings for photosensor current:
0000000 = 0 μA.
0000001 = 0.54 μA.
0000010 = 1.08 μA.
0000011 = 1.62 μA.
1111111 = 137.7 μA.
Comparator Level 3 Hysteresis (L3_HYS)—Register 0x20
Table 74. L3_HYS Comparator Level 3 Hysteresis Bit Map
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
L3_HYS
Table 75. Bit Descriptions for the L3_HYS Register
Bit Name Bit No. Description
L3_HYS 7:0 Comparator Level 3 hysteresis. If the comparator input is above L3_TRP + L3_HYS, the comparator trips
and the backlight enters Level 2 (office) mode. The following lists the code settings for photosensor
current hysteresis:
0000000 = 0 μA.
0000001 = 0.54 μA.
0000010 = 1.08 μA.
0000011 = 1.62 μA.
1111111 = 137.7 μA.
First Phototransistor Register: Low Byte (PH1LEVL)—Register 0x21
Table 76. PH1LEVL Bit Map
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
PH1LEV_LOW
Table 77. Bit Descriptions for the PH1LEVL Register
Bit Name Bit No. Description
PH1LEV_LOW 7:0 13-bit conversion value for the first light sensor—low byte (Bit 7 to Bit 0). The value is updated every
80 ms (when the light sensor is enabled). This is a read-only register.