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AS7038RB

Functional Description

Datasheet

• PUBLIC

DS000726

• v2-00 • 2021-Jun-02

126

│ 33

LEDSTATUS Register (Address 0xa3)

Figure 24:

LEDSTATUS Register

Addr: 0xa3

LEDSTATUS

Bit

Bit Name

Default

Access

Bit Description

7:4

Not used

led4_supply_low

If this bit is asserted, LED4 voltage has been too

low.

led3_supply_low

If this bit is asserted, LED3 voltage has been too

low.

led2_supply_low

If this bit is asserted, LED2 voltage has been too

low.

led1_supply_low

If this bit is asserted, LED1 voltage has been too

low.

An asserted bit can be cleared by either writing a '1' to the STATUS.clipdetect bit (in normal mode) or

by reading the CLIPSTATUS register (clear on read mode)

7.1.3

Photodiode Selection

In order to have flexible arrangement of the use photodiodes, PD1-PD4 can be individually connected

to the photodiode amplifier input. The optional offset current allows cancellation of constant light

sources like sunlight. In case of an external photodiode or any other sensor with (low) current output,

the pins GPIO0 and GPIO1 can be used as input.

Additionally the sequencer can control the diodes

– see diode_ctrl described in register

MAN_SEQ_CFG.

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