LIS302DLH datasheet(24/37 Pages) STMICROELECTRONICS

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LIS302DLH

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Doc ID 15797 Rev 1

The content of the registers that are loaded at boot should not be changed. They contain the

factory calibration values. Their content is automatically restored when the device is

powered-up.

The device contains a set of registers which are used to control its behavior and to retrieve

acceleration data. The registers address, made of 7 bits, is used to identify them and to

write the data through serial interface.

7.1

WHO_AM_I (0Fh)

Device identification register.

This register contains the device identifier that for LIS302DLH is set to 32h.

7.2

CTRL_REG1 (20h)

PM bits allow to select between power-down and two operating active modes. The device is

in power-down mode when PD bits are set to “000” (default value after boot).

Table 19

shows all the possible power mode configurations and respective output data rates. Output

Table 16.

WHO_AM_I register

011

Table 17.

CTRL_REG1 register

PM2

PM1

PM0

DR1

DR0

Zen

Yen

Xen

Table 18.

CTRL_REG1 description

PM2 - PM0

Power mode selection. Default value: 000

(000: Power-down; Others: refer to

Table 19)

DR1, DR0

Data rate selection. Default value: 00

(00:50 Hz; Others: refer to

Table 20)

Zen

Z axis enable. Default value: 1

(0: Z axis disabled; 1: Z axis enabled)

Yen

Y axis enable. Default value: 1

(0: Y axis disabled; 1: Y axis enabled)

Xen

X axis enable. Default value: 1

(0: X axis disabled; 1: X axis enabled)

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