TMD37827 datasheet(19/34 Pages) AMSCO

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Datasheet - Mar. 2013 - V2

TMD3782 – 19

The ENABLE register is used primarily to power the device on

and off, and enable functions and interrupts.

Figure TMD3782 – 27:

Enable Register.

Notes:

1. The PON bit must also be set=1 for these functions to operate.

2. WEN=1, PEN=1, AEN=0 is unsupported and will lead to erroneous proximity readings.

765432

Reserved

PIEN

AIEN

WEN

PEN

AEN

PON

Field

Bits

Description (Reset value = 0x00)

Reserved

7:6

Reserved. Write as 0.

PIEN

Proximity Interrupt Enable. When asserted permits proximity interrupts to be

generated, subject to the persist filter.

AIEN

Ambient Light Sensing (ALS) Interrupt Enable. When asserted permits ALS

interrupts to be generated, subject to the persist filter.

WEN (Note 1,2)

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

timer. Writing a 0 disables the wait timer.

PEN (Note 1,2)

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

enables proximity. Writing a 0 disables proximity.

AEN (Note 1,2)

ADC enable. This bit activates the four-channel (RGBC) ADC. Writing a 1

enables the ADC. Writing a 0 disables the ADC.

PON

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. During reads and writes over the I2C interface, this bit

is temporarily overridden and the oscillator is enabled, independent of the

state of PON.

Enable Register (0 x 00)

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