RM0312 datasheet(258/275 Pages) STMICROELECTRONICS

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ProxSense™ (PXS)

RM0312

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DocID022352 Rev 3

22.9

ProxSense registers

22.9.1

ProxSense Control Register 1 (PXS_CR1)

Address offset: 0x00

Reset value: 0x00

7654321

PXSEN

START

LOW_POWER

Reserved

r0_w

Bit 7 PXSEN: ProxSense enable

0: ProxSense feature is disabled and ProxSense analog circuits are powered down

1: ProxSense feature is activated

This bit is reset to 0 only by software.

Note: If PXSEN is set to 0 (by software) during a conversion, the conversion is stopped and the

conversion results are not guaranteed.

Bit 6 START: Start conversion

0: Writing zero has no effect

1: Start conversion

Writing 1 to this bit starts a new conversion if the ProxSense peripheral is enabled (if PXSEN = 1) and

if a conversion is not already in progress (if CIPF = 0). START is always read as ‘0’.

Note: Writing 1 when a conversion is already in progress (when CIPF = 1) has no effect.

Note: Writing 1 when the ProxSense peripheral is disabled (when PXSEN = 0) has no effect unless

PXSEN is being set with the same write instruction.

Bit 5 LOW_POWER: Low power mode

0: ProxSense analog is powered on whenever PXSEN = 1

1: ProxSense analog is powered on only during conversions (while CIPF = 1 and SYNCPF = 0)

Bits 4:0 Reserved

RM0312 데이터시트(PDF) 258 Page - STMicroelectronics