LSM6DSL datasheet(45/113 Pages) STMICROELECTRONICS

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Table 17. Internal pin status

pin#

Name

Mode 1 function

Mode 2 function

Pin status Mode 1

Pin status Mode 2

SDO

SPI 4-wire interface serial data

output (SDO)

SPI 4-wire interface serial data

output (SDO)

Default: Input without pull-up.

Pull-up is enabled if bit SIM = 1

(SPI 3-wire) in reg 12h.

Default: Input without pull-up.

Pull-up is enabled if bit SIM = 1

(SPI 3-wire) in reg 12h.

SA0

I2C least significant bit of the

device address (SA0)

I2C least significant bit of the

device address (SA0)

SDx

Connect to VDDIO or GND

I2C serial data master (MSDA)

Default: input without pull-up.

Pull-up is enabled if bit

PULL_UP_EN = 1 in reg 1Ah.

Default: input without pull-up.

Pull-up is enabled if bit

PULL_UP_EN = 1 in reg 1Ah.

SCx

Connect to VDDIO or GND

I2C serial clock master (MSCL)

Default: input without pull-up.

Pull-up is enabled if bit

PULL_UP_EN = 1 in reg 1Ah.

Default: input without pull-up.

Pull-up is enabled if bit

PULL_UP_EN = 1 in reg 1Ah.

INT1

Programmable interrupt 1

Default: Output forced to ground

Vdd_IO

Power supply for I/O pins

GND

0 V supply

GND

0 V supply

Vdd

Power supply

INT2

Programmable interrupt 2 (INT2)

/ Data enabled (DEN)

Programmable interrupt 2 (INT2)

/ Data enabled (DEN) /

I2C master external

synchronization signal (MDRDY)

Default: Output forced to ground

Leave unconnected(1)

I2C/SPI mode selection

(1:SPI idle mode /

I2C communication enabled;

0: SPI communication mode /

I2C disabled)

I2C/SPI mode selection

(1:SPI idle mode /

I2C communication enabled;

0: SPI communication mode /

I2C disabled)

Default: Input with pull-up.

Pull-up is disabled

if bit I2C_disable = 1 in reg 13h.

Default: Input with pull-up.

Pull-up is disabled

if bit I2C_disable = 1 in reg 13h.

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