ADP8860ACPZ-R7 datasheet(47/52 Pages) AD

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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.

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