Datasheet, Public

Page 13

[v3-00] 2023-Feb-08

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TSL2591 − Register Description

The device is controlled and monitored by registers accessed

through the I²C serial interface. These registers provide for a

variety of control functions and can be read to determine results

of the ADC conversions. The register set is summarized in

Figure 15.

Figure 15:

Register Description

Note(s):

1. Devices with a primary I2C address of 0x29 also have a secondary I2C address of 0x28 that can be used for read only registers to

quickly read in a single block I2C transaction.

Address

Register Name

R/W

Register Function

Reset

Value

--

COMMAND

W

Specifies Register Address

0x00

0x00

ENABLE

R/W

Enables states and interrupts

0x00

0x01

CONFIG

R/W

ALS gain and integration time configuration

0x00

0x04

AILTL

R/W

ALS interrupt low threshold low byte

0x00

0x05

AILTH

R/W

ALS interrupt low threshold high byte

0x00

0x06

AIHTL

R/W

ALS interrupt high threshold low byte

0x00

0x07

AIHTH

R/W

ALS interrupt high threshold high byte

0x00

0x08

NPAILTL

R/W

No Persist ALS interrupt low threshold low byte

0x00

0x09

NPAILTH

R/W

No Persist ALS interrupt low threshold high byte

0x00

0x0A

NPAIHTL

R/W

No Persist ALS interrupt high threshold low byte

0x00

0x0B

NPAIHTH

R/W

No Persist ALS interrupt high threshold high

byte

0x00

0x0C

PERSIST

R/W

Interrupt persistence filter

0x00

0x11

PID

R

Package ID

--

0x12

ID

R

Device ID

ID

0x13

STATUS

R

Device status

0x00

0x14

C0DATAL

R

CH0 ADC low data byte

0x00

0x15

C0DATAH

R

CH0 ADC high data byte

0x00

0x16

C1DATAL

R

CH1 ADC low data byte

0x00

0x17

C1DATAH

R

CH1 ADC high data byte

0x00

Register Description