LSM6DSTTR datasheet(64/180 Pages) STMICROELECTRONICS

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Table 21. Internal pin status

Name

Mode 1 function

Mode 2 function

Mode 3 / Mode 4

function

Pin status

Mode 1

Pin status

Mode 2

Pin status

Mode 3/4(1)

SDO

SPI 4-wire interface

serial data output

(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 SDO_PU_EN = 1

in reg. 02h.

Default:

input without pull-up.

Pull-up is enabled if bit

SDO_PU_EN = 1 in

reg. 02h.

Default:

Input without pull-up.

Pull-up is enabled if bit

SDO_PU_EN = 1

in reg 12h.

SA0

I²C least significant

bit of the device

address (SA0)

MIPI I3CSM least

significant bit of the

static address (SA0)

I²C least significant

bit of the device

address (SA0)

MIPI I3CSM least

significant bit of the

static address (SA0)

I²C least significant bit

of the device address

(SA0)

MIPI I3CSM least

significant bit of the

static address (SA0)

SDx

Connect to VDDIO or

GND

I²C serial data master

(MSDA)

Auxiliary SPI 3/4-wire

interface serial data

input (SDI) and SPI

3-wire serial data

output (SDO)

Default:

input without pull-up.

Pull-up is enabled if bit

SHUB_PU_EN = 1 in

reg 14h in sensor hub

registers (see Note to

enable pull-up).

Default:

input without pull-up.

Pull-up is enabled if bit

SHUB_PU_EN = 1 in

reg 14h in sensor hub

registers (see Note to

enable pull-up).

Default:

input without pull-up.

Pull-up is enabled if bit

SHUB_PU_EN = 1 in

reg 14h in sensor hub

registers (see Note to

enable pull-up).

SCx

Connect to VDDIO or

GND

I²C serial clock

master (MSCL)

Auxiliary SPI 3/4-wire

interface serial port

clock (SPC_Aux)

Default:

input without pull-up.

Pull-up is enabled if bit

SHUB_PU_EN = 1 in

reg 14h in sensor hub

registers (see Note to

enable pull-up).

Default:

input without pull-up.

Pull-up is enabled if bit

SHUB_PU_EN = 1 in

reg 14h in sensor hub

registers (see Note to

enable pull-up).

Default:

input without pull-up.

Pull-up is enabled if bit

SHUB_PU_EN = 1 in

reg 14h in sensor hub

registers (see Note to

enable pull-up)

INT1

Programmable

interrupt 1 / If device

is used as MIPI

I3CSM pure slave, this

pin must be set to ‘1’.

Programmable

interrupt 1 / If device

is used as MIPI

I3CSM pure slave, this

pin must be set to ‘1’.

Programmable

interrupt 1 / If device is

used as MIPI I3CSM

pure slave, this pin

must be set to ‘1’.

Default:

input with pull-down(2)

Default:

input with pull-down(2)

Default:

input with pull-down(2)

VDDIO

Power supply

for I/O pins

Power supply

for I/O pins

Power supply

for I/O pins

GND

0 V supply

GND

0 V supply

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