TCS3408 datasheet(20/53 Pages) OSRAM

20 / 53 page

Datasheet, Public

Page 19

[v2-00] 2023-Feb-01

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TCS3408 − Register Overview

Power, Enable, and Operation

The enable register has fields that power on the device and

enable the functions. To operate the device, first set all

configuration fields for all functions, then set PON = 1, and

finally enable functions. Changing configuration register values

while functions are operating may result in invalid results. PEN,

and AEN require PON to be asserted for each respective

function to operate correctly. When PEN, or AEN are asserted,

the visible bit is only updated when the state machine has

completed the process of enabling the associated function.

Figure 19:

ENABLE

Note(s):

1. Return to the Register Map (0x80).

Addr: 0x80

ENABLE

Bit

Field

Reset

Type

Bit Description

7Reserved

6FDEN

R/W

Flicker Detection Enable. Writing a 1 activates flicker

detection. Writing a 0 disables flicker detection.

5:4

Reserved

3WEN

R/W

Wait Enable. Writing a 1 activates the wait timer. Writing

a 0 disables the wait timer.

2Reserved

1AEN

R/W

ALS Enable. Writing a 1 enables ALS/Color. Writing a 0

disables ALS/Color.

0PON

R/W

Power ON. When asserted, the internal oscillator is

activated, allowing timers and ADC channels to operate.

Writing a 0 disables the oscillator and clears PEN, and AEN.

Only set this bit after all other registers have been

initialized by the host.

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