TSL2521 datasheet(34/81 Pages) OSRAM

34 / 81 page

Datasheet, Public

Page 33

[v3-00] 2022-Dec-21

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TSL2521 − Register Overview

STATUS4 Register

Figure 38:

STATUS4

Note(s):

1. Return to the Register Map (0x9F).

STATUS5 Register

Figure 39:

STATUS5

Addr: 0x9F

STATUS4

Bit

Field

Reset

Type

Bit Description

7:4

Reserved

MOD_SAMPLE_

TRIGGER_ERROR

Indicates that measured data is corrupted. For a

valid measurement, this bit must not be asserted.

This error condition does not trigger an interrupt,

however AEN and FDEN will be cleared and SINT_

MEASURMENT_SEQUENCER will be set. Writing “1”

clears this bit.

MOD_TRIGGER_

ERROR

Indicates that WTIME is too short for the

programmed configuration (SAMPLE_TIME, ALS_

NR_SAMPLES. This error condition does not trigger

an interrupt. Writing “1” clears this bit.

SAI_ACTIVE

Sleep After Interrupt Active. Indicates that the

device is in sleep due to an interrupt. To exit sleep

mode, clear this bit by writing ‘1’ to CLEAR_SAI_

ACTIVE.

0INIT_BUSY

Initialization Busy. Indicates that the device is

initializing. This bit will remain 1 for about 300μs

after power on. Do not interact with the device until

initialization is complete (e.g. via I²C).

Addr: 0xA0

STATUS5

Bit

Field

Reset

Type

Bit Description

7:2

Reserved

SINT_MEASUREMENT_

SEQUENCER

0R/W

Indicates a measurement sequencer system interrupt in

case MOD_SAMPLE_TRIGGER_ERROR occurs or after

each sequencer step/round depending on the status of

MEASUREMENT_SEQUENCER_SIENT_PER_STEP. In

parallel SIEN_MEASUREMENT_SEQUENCER must be set.

Writing ‘1’ to this bit clears this interrupt.

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