参数资料
型号: LIS302DLH
厂商: STMICROELECTRONICS
元件分类: 模拟信号调理
英文描述: SPECIALTY ANALOG CIRCUIT, PBGA14
封装: 3 X 5 MM, 0.80 MM HEIGHT, ROHS COMPLIANT, PLASTIC, LGA-14
文件页数: 21/37页
文件大小: 673K
代理商: LIS302DLH
Register description
LIS302DLH
28/37
Doc ID 15797 Rev 1
BDU bit is used to inhibit output registers update between the reading of upper and lower
register parts. In default mode (BDU = ‘0’) the lower and upper register parts are updated
continuously. If it is not sure to read faster than output data rate, it is recommended to set
BDU bit to ‘1’. In this way, after the reading of the lower (upper) register part, the content of
that output registers is not updated until the upper (lower) part is read too.
This feature avoids reading LSB and MSB related to different samples.
7.6
CTRL_REG5 (24h)
TurnOn bits are used for turning on the sleep to wake function.
Setting TurnOn[1:0] bits to 11 the “sleep to wake” function is enabled. When an interrupt
event occurs the device is turned to normal mode increasing the ODR to the value defined in
Table 29.
CTRL_REG4 description
BDU
Block data update. Default value: 0
(0: continuos update; 1: output registers not updated between MSB and LSB reading)
BLE
Big/little endian data selection. Default value 0.
(0: data LSB @ lower address; 1: data MSB @ lower address)
FS1, FS0
Full-scale selection. Default value: 00.
(00: ±2
g; 01: ±4 g; 11: ±8 g)
STsign
Self-test sign. Default value: 00.
(0: self-test plus; 1 self-test minus)
ST
Self-test enable. Default value: 0.
(0: self-test disabled; 1: self-test enabled)
SIM
SPI serial interface mode selection. Default value: 0.
(0: 4-wire interface; 1: 3-wire interface)
Table 30.
CTRL_REG5 register
0
000
00
TurnOn1
TurnOn0
Table 31.
CTRL_REG5 description
TurnOn1,
TurnOn0
Turn-on mode selection for sleep to wake function. Default value: 00.
Table 32.
Sleep to wake configuration
TurnOn1
TurnOn0
Sleep to wake status
0
Sleep to wake function is disabled
11
Turned on: The device is in low power mode (ODR is defined in
CTRL_REG1)
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