LSM6DSTX datasheet(146/175 Pages) STMICROELECTRONICS

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17.19

MASTER_CONFIG (14h)

Master configuration register (R/W)

Table 441. MASTER_CONFIG register

RST_MASTER

_REGS

WRITE_

ONCE

START_

CONFIG

PASS_

THROUGH_

MODE

SHUB_PU_EN

MASTER_ON

AUX_

SENS_ON1

AUX_

SENS_ON0

Table 442. MASTER_CONFIG register description

RST_MASTER_REGS

Resets master logic and output registers. Must be set to 1 and then set to 0. Default value: 0

WRITE_ONCE

Slave 0 write operation is performed only at the first sensor hub cycle.

Default value: 0

(0: write operation for each sensor hub cycle;

1: write operation only for the first sensor hub cycle)

START_CONFIG

Sensor hub trigger signal selection. Default value: 0

(0: sensor hub trigger signal is the accelerometer/gyroscope data-ready;

1: sensor hub trigger signal external from INT2 pin)

PASS_THROUGH_MODE

I²C interface pass-through. Default value: 0

(0: pass-through disabled;

1: pass-through enabled, primary I²C line is short-circuited with the sensor hub line)

SHUB_PU_EN

Enables master I²C pull-up. Default value: 0

(0: internal pull-up on auxiliary I²C line disabled;

1: internal pull-up on auxiliary I²C line enabled)

MASTER_ON

Enables sensor hub I²C master. Default: 0

(0: master I²C of sensor hub disabled; 1: master I²C of sensor hub enabled)

AUX_SENS_ON[1:0]

Number of external sensors to be read by the sensor hub.

(00: one sensor (default);

01: two sensors;

10: three sensors;

11: four sensors)

LSM6DSTX

MASTER_CONFIG (14h)

DS14039 - Rev 1

page 146/175

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