ADP8863ACPZ-R7 datasheet(46/48 Pages) AD

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ADP8863

Rev. 0 | Page 46 of 48

Comparator Level 3 Threshold (L3_TRP)—Register 0x1F

Table 73. L3_TRP Bit Map

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

L3_TRP

Table 74. 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:

00000000 = 0 μA

00000001 = 0.54 μA

00000010 = 1.08 μA

00000011 = 1.62 μA

…

11111111 = 137.7 μA

Comparator Level 3 Hysteresis (L3_HYS)—Register 0x20

Table 75. L3_HYS Bit Map

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

L3_HYS

Table 76. 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:

00000000 = 0 μA

00000001 = 0.54 μA

00000010 = 1.08 μA

00000011 = 1.62 μA

…

11111111 = 137.7 μA

First Phototransistor Register: Low Byte (PH1LEVL)—Register 0x21

Table 77. PH1LEVL Bit Map

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

PH1LEV_LOW

Table 78. Bit Descriptions for the PH1LEVL Register

Bit Name

Bit No.

Description

PH1LEV_LOW

[7:0]

Lower eight bits of the 13-bit conversion value for the first light sensor (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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