TSL27721 datasheet(32/58 Pages) OSRAM

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Datasheet, Public

Page 31

[v2-00] 2023-Mar-30

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TSL2772 − Principles Of Operation

Command Register

The command registers specifies the address of the target

Figure 31:

Command Register

COMMAND

TYPE

ADD

Field

Bits

Description

COMMAND

Select Command Register. Must write as 1 when addressing COMMAND register.

TYPE

6:5

Selects type of transaction to follow in subsequent data transfers:

FIELD VALUE

DESCRIPTION

Repeated byte protocol transaction

Auto-increment protocol transaction

Reserved — Do not use

Special function — See description below

Transaction type 00 will repeatedly read the same register with each data access.

Transaction type 01 will provide an auto-increment function to read successive

ADD

4:0

Address field/special function field. Depending on the transaction type, see above,

this field either specifies a special function command or selects the specific

control-status-register for following write and read transactions. The field values listed

below apply only to special function commands:

FIELD VALUE

DESCRIPTION

00000

Normal — No action

00101

Proximity interrupt clear

00110

ALS interrupt clear

00111

Proximity and ALS interrupt clear

other

Reserved — Do not write

ALS/Proximity Interrupt Clear clears any pending ALS/Proximity interrupt. This special

function is self clearing.

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