Page 28

ams Datasheet

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[v1-00] 2016-Mar-22

TSL2771 − Register Set

Enable Register (0x00)

The ENABLE register is used to power the device ON/OFF, enable

functions, and interrupts.

Figure 29:

Enable Register

Note(s):

1. See Power Management section for more information.

2. A minimum interval of 2.72 ms must pass after PON is asserted before either a proximity or ALS can be initiated. This required time

is enforced by the hardware in cases where the firmware does not provide it.

76

5

4

3

2

1

0

Reserved

PIEN

AIEN

WEN

PEN

AEN

PON

Field

Bits

Description

Reserved

7:6

Reserved. Write as 0.

PIEN

5

Proximity interrupt mask. When asserted, permits proximity interrupts to be generated.

AIEN

4

ALS interrupt mask. When asserted, permits ALS interrupts to be generated.

WEN

3

Wait Enable. This bit activates the wait feature. Writing a 1 activates the wait timer.

Writing a 0 disables the wait timer.

PEN

2

Proximity enable. This bit activates the proximity function. Writing a 1 enables

proximity. Writing a 0 disables proximity.

AEN

1

ALS Enable. This bit actives the two channel ADC. Writing a 1 activates the ALS. Writing

a 0 disables the ALS.

PON(1)(2)

0

Power ON. This bit activates the internal oscillator to permit the timers and ADC

channels to operate. Writing a 1 activates the oscillator. Writing a 0 disables the

oscillator.