TSL26721 datasheet(26/47 Pages) OSRAM

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ams Datasheet

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[v1-01] 2019-Nov-20

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TSL2672 − Principles Of Operation

Command Register

The command register specifies the address of the target

special function commands.

Figure 28:

Command Register

CMD

TYPE

ADDR/SF

Field

Bits

Description

CMD

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 register

bytes.

ADDR/SF

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-data register for subsequent read and write transactions. The field values

listed below apply only to special function commands:

FIELD VALUE

DESCRIPTION

00100

Interrupt set — forces an interrupt

00101

Proximity interrupt clear

other

Reserved — Do not write

The interrupt set special function command sets the interrupt bits in the status register

(0x13). For the interrupt to be visible on the INT pin, the proximity interrupt enable bit

(PIEN) in the enable register (0x00) must be asserted.

The interrupt set special function must be cleared with an interrupt clear special function.

The proximity interrupt clear special function clears any pending interrupt and is self

clearing.

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