ADP5501

Rev. 0 | Page 24 of 28

Table 21. Register 0x0E, Level 2 (Office) Comparator Hysteresis (L2_HYS)

Bit

Name

R/W

Description

6 to 0

L2_HYS

R/W

Sets the hysteresis value for Comparator L2_CMPR. If ambient light levels increase above L2_TRIP + L2_HYS,

L2_OUT is cleared. Each code is equal to 4 μA (typical). Full scale is 1000 μA (typical).

Table 22. Register 0x0F, Level 3 (Dark) Comparator Trip Point (L3_TRIP)

Bit

Name

R/W

Description

6 to 0

L3_TRIP

R/W

Sets the trip value for Comparator L3_CMPR. If ambient light levels fall below this trip point, L3_OUT is

set. Each code is equal to 0.5 μA (typical). Full scale is 127 μA (typical).

Table 23. Register 0x10, Level 3 (Dark) Comparator Hysteresis (L3_HYS)

Bit

Name

R/W

Description

6 to 0

L3_HYS

R/W

Sets the hysteresis value for Comparator L3_CMPR. If ambient light levels increase above L3_TRIP + L3_HYS,

L3_OUT is cleared. Each code is equal to 0.5 μA (typical). Full scale is 127 μA (typical).

Table 24. Register 0x11, LED Control (LED_SINK_CONTROL)

Bit

Name

R/W

Description

7 to 4

Not used

3

LED_LAW

R/W

LED current sink fade-on/fade-off transfer characteristic.

0 = linear.

1 = square.

2

LED2_EN

R/W

0 = LED2 sink is disabled.

1 = LED2 sink is enabled.

1

LED1_EN

R/W

0 = LED1 sink is disabled.

1 = LED1 sink is enabled.

0

LED0_EN

R/W

0 = LED0 sink is disabled.

1 = LED0 sink is enabled.

Table 25. Register 0x12, LED On and Off Timers (LED_TIME)

Bit

Name

R/W

Description

7 to 6

LED_ONT

R/W

Sets the LED on time when used in conjunction with the LEDx_OFFT timer to perform LED blinking. All

three LED sinks share this common timer.

00 = 0.2 sec.

01 = 0.6 sec.

10 = 0.8 sec.

11 = 1.2 sec.

5 to 4

LED2_OFFT

R/W

Sets the LED2 off time when used in conjunction with the LED_ONT timer to perform LED blinking. LED2

stays on continuously if the timer is disabled.

00 = LED2 timer is disabled.

01 = 0.6 sec.

10 = 0.8 sec.

11 = 1.2 sec.

3 to 2

LED1_OFFT

R/W

Sets the LED1 off time when used in conjunction with the LED_ONT timer to perform LED blinking. LED1

stays on continuously if the timer is disabled.

00 = LED1 timer is disabled.

01 = 0.6 sec.

10 = 0.8 sec.

11 = 1.2 sec.

1 to 0

LED0_OFFT

R/W

Sets the LED0 off time when used in conjunction with the LED _ONT timer to perform LED blinking.

LED0 stays on continuously if the timer is disabled.

00 = LED0 timer is disabled.

01 = 0.6 sec.

10 = 0.8 sec.

11 = 1.2 sec.