IIS2MDC datasheet(20/40 Pages) STMICROELECTRONICS

20 / 40 page

Application hints

IIS2MDC

20/40

DocID030986 Rev 1

Note:

In order to program INT/DRDY as a push-pull output, write the INT_on_PIN or

DRDY_on_PIN bit to '1' in CFG_REG_C (62h).

Please refer to AN5080 for more information (magnetometer offset cancellation,

magnetometer hard-iron compensation, interrupt generation, self-test procedure,

Temperature sensor).

Table 14. Internal pin status

Pin#

Name

Function

Pin status

SCL

SPC

I2C serial clock (SCL)

SPI serial port clock (SPC)

Default: input without pull-up

Internally not connected

3CS

I2C/SPI mode selection

(1: SPI idle mode / I2C communication enabled;

0: SPI communication mode / I2C disabled)

Default: input without pull-up

SDA

SDI

SDO

I2C serial data (SDA)

SPI serial data input (SDI)

3-wire interface serial data output (SDO)

Default: (SDA) input without pull-up

Capacitor connection (C1 = 220 nF)

External capacitor, voltage forced

by the device

GND

0 V

INT/DRDY

Interrupt/data-ready signal

Default: output high impedance

GND

0 V

Vdd

Power supply

Vdd_IO

Power supply for I/O pins

Internally not connected

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