LSM320HAY30 STMicroelectronics, LSM320HAY30 Datasheet - Page 28

• Manufacturer Part Number: LSM320HAY30
• Description: Mems Motion Sensor Module 3d Digital Accelerometer And 2d Pitch And Yaw Analog Gyroscope
• Manufacturer: STMicroelectronics

Register description
8
8.1
8.2
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Register description
The device contains a set of registers which are used to control acceleration portion
behavior and to retrieve acceleration data. The register address, composed of 7 bits, is used
to identify them and to write the data through the serial interface.
WHO_AM_I (0Fh)
Table 15.
This register is the device identification register, and contains the device identifier which, for
the LSM320HAY30, is set to 32h.
LA_CTRL_REG1 (20h)
Table 16.
Table 17.
PM bits allow selection between power-down and two operating active modes. The device is
in power-down mode when the PD bits are set to “000” (default value after boot).
shows all the possible power mode configurations and respective output data rates. Output
data in the low-power modes are computed with a low-pass filter cut-off frequency defined
by DR1, DR0 bits.
DR bits, in normal mode operation, select the data rate at which acceleration samples are
produced. In low-power mode they define the output data resolution.
possible configurations for the DR1 and DR0 bits.
PM2 - PM0
DR1, DR0
Zen
Yen
Xen
PM2
0
WHO_AM_I register
LA_CTRL_REG1 register
LA_CTRL_REG1 description
PM1
Power mode selection. Default value: 000
(000: Power-down; Others: refer to
Data rate selection. Default value: 00
(00:50 Hz; others: refer to
Z axis enable. Default value: 1
(0: Z axis disabled; 1: Z axis enabled)
Y axis enable. Default value: 1
(0: Y axis disabled; 1: Y axis enabled)
X axis enable. Default value: 1
(0: X axis disabled; 1: X axis enabled)
0
PM0
1
Doc ID 16917 Rev 1
DR1
1
Table
19)
Table
DR0
0
18)
Zen
0
Table 19
Yen
1
LSM320HAY30
shows all the
Table 18
Xen
0