STMPE16M31PX datasheet(67/75 Pages) STMICROELECTRONICS

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STMPE16M31PX

Touchkey and proximity sensing controller

Doc ID 17058 Rev 2

67/75

PEVR

Proximity enviromental variance register

Address:

0x98

Type:

Reset:

0x00

Description:

Proximity enviromental variance register.

PROX DATA PORT

Proximity DATA PORT

Address:

0xB0 (LSB), 0xB1 (MSB)

Type:

Reset:

0x00

Description:

Proximity data port.

[7] Forced proximity calibration.

Writing '1' to this bit forces the proximity sensing module to use the current dithered impedance

as calibrated dithered impedance. After writing '1' to this bit, I2C should monitor the calibration

status bit ( Prox Data Port 1, bit 6). On reading '1' in calibration status bit, I2C must write '0' in

forced proximity calibration bit to complete the calibration action.

[6] EVR used for proximity detection. typically value of 0x02-0x05 is used.

876

5432

PROX_STA

CAL_STA

RESERVED

Dithered Impedance/calibrated dithered impedance

000

0000

[7:6] Proximity status: real-time status of proximity sensor

[14] Calibration status:

Reads '1' if calibration is completed.

Reads '0' if I2C executes a forced calibration

[13] Reserved

[12:0] 13 bit dithered impedance/calibrated dithered impedance.

The data read in this location is controlled by the access mode setting in PROX_TRIG register.

Obsolete

Product(s)

- Obsolete

Product(s)

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