LSM303AGR Datasheet, PDF (48/68 Pages) STMicroelectronics – ultra-low-power 3D accelerometer and 3D magnetometer

Register description
8.9
CTRL_REG4_A (23h)
BDU
BLE⁽¹⁾
Table 40. CTRL_REG4 register
FS1
FS0
HR
ST1
1. The BLE function can be activated only in high-resolution mode
LSM303AGR
ST0
SPI_
ENABLE
BDU
BLE
FS[1:0]
HR
ST[1:0]
SPI_ENABLE
Table 41. CTRL_REG4 description
Block data update. Default value: 0
(0: continuous update; 1: output registers not updated until MSB and LSB
have been read)
Big/Little Endian data selection. Default value: 0
(0: data LSb at lower address; 1: data MSb at lower address)
The BLE function can be activated only in high-resolution mode
Full-scale selection. Default value: 00
(00: ±2g; 01: ±4g; 10: ±8g; 11: ±16g)
Operating mode selection (refer to Section 4.2.1: Accelerometer power
modes)
Self-test enable. Default value: 00
(00: self-test disabled; other: see Table 42)
3-wire SPI interface enable. Default: 0
(0: SPI 3-wire disabled; 1: SPI 3-wire enabled)
ST1
0
0
1
1
Table 42. Self-test mode configuration
ST0
0
1
0
1
Self-test mode
Normal mode
Self test 0
Self test 1
--
8.10
CTRL_REG5_A (24h)
BOOT
FIFO_EN
Table 43. CTRL_REG5_A register
--
-- LIR_INT1 D4D_INT1 LIR_INT2
D4D_INT2
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