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LSM303CTR データシート(PDF) 45 Page - STMicroelectronics

部品番号 LSM303CTR
部品情報  Ultra-compact high-performance eCompass module: 3D accelerometer and 3D magnetometer
PDF  53 Pages
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メーカー  STMICROELECTRONICS [STMicroelectronics]
ホームページ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

LSM303CTR データシート(HTML) 45 Page - STMicroelectronics

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LSM303C
Register description
53
Table 79. System operating mode selection
8.32
CTRL_REG4_M (23h)
Table 82. Z-axis operative mode selection
Table 78. CTRL_REG3_M register description
I2C_DISABLE
Disable I2C interface. Default value 0. (0: I2C enable; 1: I2C disable)
LP
Low-power mode configuration. Default value: 0
If this bit is ‘1’, the DO[2:0] is set to 0.625 Hz and the system performs, for each
channel, the minimum number of averages. Once the bit is set to ‘0’, the magnetic
data rate is configured by the DO bits in CTRL_REG1_M (20h) register.
SIM
SPI Serial Interface mode selection. Default value: 0
(0= SPI only write operations enabled; 1= SPI read and write operations enable).
MD[1:0]
Operating mode selection. Default value: 11
Refer to Table 79.
MD1
MD0
Mode
0
0
Continuous-conversion mode
0
1
Single-conversion mode
Single-conversion mode has to be used with sampling frequency from 0.625 Hz
to 80 Hz.
1
0
Power-down mode
1
1
Power-down mode
Table 80. CTRL_REG4_M register
0(1)
1. These bits must be set to ‘0’ for the correct operation of the device
0(1)
0(1)
0(1)
OMZ1
OMZ0
BLE
0(1)
Table 81. CTRL_REG4_M register description
OMZ[1:0]
Z-axis operative mode selection.
Default value: 00. Refer to Table 82.
BLE
Big/Little Endian data selection. Default value: 0
(0: data LSb at lower address; 1: data MSb at lower address)
OMZ1
OMZ0
Operative mode for Z-axis
0
0
Low-power mode
0
1
Medium-performance mode
1
0
High-performance mode
1
1
Ultra-high performance mode
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