STEVAL-MKI091V1 STMicroelectronics, STEVAL-MKI091V1 Datasheet - Page 25

• Manufacturer Part Number: STEVAL-MKI091V1
• Description: DEMO BOARD FOR LIS331DLM
• Manufacturer: STMicroelectronics
• Series: MEMS, nanor

Specifications of STEVAL-MKI091V1

• Sensor Type: Accelerometer, 3 Axis
• Sensing Range: ±2g, 4g, 8g
• Interface: I²C, SPI
• Sensitivity: 64LSB/G, 32LSB/g, 16LSB/g
• Embedded: No
• Utilized Ic / Part: LIS331DLM
• Acceleration: 2 g, 4 g, 8 g
• Sensing Axis: Triple Axis
• Interface Type: I2C, SPI
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Supply: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• For Use With/related Products: LIS331DLM
• Other names: 497-10491

LIS331DLM
7
7.1
7.2
Register description
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.
WHO_AM_I (0Fh)
Table 16.
Device identification register.
This register contains the device identifier that for LIS331DLM is set to 12h.
CTRL_REG1 (20h)
Table 17.
Table 18.
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).
shows all the possible power mode configurations and respective output data rates. Output
data in the low-power modes are computed with low-pass filter cut-off frequency defined by
DR1, DR0 bits.
DR bits, in the normal-mode operation, select the data rate at which acceleration samples
are produced. In low-power mode they define the output data resolution.
the possible configuration for DR1 and DR0 bits.
PM2 - PM0
DR1, DR0
Zen
Yen
Xen
PM2
0
WHO_AM_I register
CTRL_REG1 register
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
0
Doc ID 15102 Rev 4
DR1
1
Table
20)
Table
DR0
0
19)
Zen
0
Register description
Table 20
Yen
1
Table 19
shows all
Xen
0
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