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[v1-06] 2018-Feb-27

TMG3992 − Register Description

Configuration Register Two (CONFIG2 0x90)

The Configuration Register Two independently enables or

disables the saturation interrupts for Proximity and Clear

channel. Saturation Interrupts are cleared by accessing the

Clear Interrupt registers at 0xE5, 0xE6 and 0xE7. The LEDBOOST

bits allow the LDR pin to sink more current above the maximum

setting by LDRIVE and GLDRIVE.

Figure 55:

Configuration Register Two

Note(s):

1. A LEDBOOST value of 00 results in 100% of the current as set by LDRIVE (i.e. No additional current).

765

432

PSIEN

CPSIEN

LEDBOOST

Reserved

Field

Bits

Description

PSIEN

Proximity Saturation Interrupt Enable.

0 = Proximity saturation interrupt disabled

1 = Proximity saturation Interrupt enabled

CPSIEN

Clear Photodiode Saturation Interrupt Enable.

0 = ALS saturation interrupt disabled

1 = ALS saturation interrupt enabled

LEDBOOST

5:4

LED Boost. Provides additional LDR current during LED pulses. Current

value, set by LDRIVE, is increased by the percentage of LEDBOOST.

FIELD VALUE

LED ON

100%

150%

200%

300%

Reserved

Reserved. Bit must be set to 0.

Reserved

Reserved. Bit must be set to 0.

Reserved

Reserved. Bit must be set to 0.

Reserved

Reserved. Bit must be set to 1 and is set high by default during POR.

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