ISM330DLC datasheet(49/116 Pages) STMICROELECTRONICS

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Table 19. Internal pin status

pin#

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

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 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.

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)

I2C least significant bit

of the device 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 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.

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)

Auxiliary SPI 3/4-wire

interface serial port

clock (SPC_Aux)

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.

Default: input without

pull-up.

Pull-up is enabled if

bit PULL_UP_EN = 1

in reg 1Ah.

INT1

Programmable

interrupt 1

Programmable

interrupt 1

Programmable

interrupt 1

Default: Output forced

to ground

Default: Output forced

to ground

Default: Output forced

to ground

Vdd_IO

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

Vdd

Power supply

INT2

Programmable

interrupt 2 (INT2) /

Data enabled (DEN)

Programmable

interrupt 2 (INT2) /

Data enabled (DEN) /

I2C master external

synchronization signal

(MDRDY)

Programmable

interrupt 2 (INT2) /

Data enabled (DEN)

Default: Output forced

to ground

Default: Output forced

to ground

Default: Output forced

to ground

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