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参数资料
| 型号： | LIS3LV02DL |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 模拟信号调理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, PBGA16 |
| 封装： | 4.40 X 7.50 MM, 1 MM HEIGHT, GREEN, PLASTIC, LGA-16 |
| 文件页数： | 17/48页 |
| 文件大小： | 681K |
| 代理商： | LIS3LV02DL |
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Digital interfaces
LIS3LV02DL
24/48
Data are transmitted in byte format (DATA). Each data transfer contains 8 bits. The number
of bytes transferred per transfer is unlimited. DATA is transferred with the Most Significant bit
(MSb) first. If a receiver can’t receive another complete byte of data until it has performed
some other function, it can hold the clock line, SCL LOW to force the transmitter into a wait
state. Data transfer only continues when the receiver is ready for another byte and releases
the data line. If a slave receiver doesn’t acknowledge the slave address (i.e. it is not able to
receive because it is performing some real time function) the data line must be left HIGH by
the slave. The Master can then abort the transfer. A LOW to HIGH transition on the SDA line
while the SCL line is HIGH is defined as a STOP condition. Each data transfer must be
terminated by the generation of a STOP (SP) condition.
In order to read multiple bytes, it is necessary to assert the most significant bit of the sub-
address field. In other words, SUB(7) must be equal to ‘1’ while SUB(6-0) represents the
address of first register to read.
In the presented communication format MAK is Master Acknowledge and NMAK is No
Master Acknowledge.
5.2
SPI bus interface
The LIS3LV02DL SPI is a bus slave. The SPI allows to write and read the registers of the
device.
The serial interface interacts with the outside world with 4 wires: CS, SPC, SDI and SDO.
Figure 6.
Read and write protocol
CS is the Serial Port Enable and it is controlled by the SPI master. It goes low at the start of
the transmission and goes back high at the end.
SPC is the Serial Port Clock and it is controlled by the SPI master. It is stopped high when
CS is high (no transmission).
SDI and SDO are respectively the Serial Port Data Input and Output. Those lines are driven
at the falling edge of SPC and should be captured at the rising edge of SPC.
Both the Read Register and Write Register commands are completed in 16 clock pulses or
in multiple of 8 in case of multiple byte read/write. Bit duration is the time between two falling
edges of SPC. The first bit (bit 0) starts at the first falling edge of SPC after the falling edge
of CS while the last bit (bit 15, bit 23, ...) starts at the last falling edge of SPC just before the
rising edge of CS.
CS
SPC
SDI
SDO
RW
AD5 AD4 AD3 AD2 AD1 AD0
DI7DI6 DI5DI4 DI3DI2 DI1DI0
DO7 DO6 DO5 DO4 DO3 DO2 DO1 DO0
MS
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LIS3LV02DL_08 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:MEMS inertial sensor 3-axis - 【2g/【6g digital output low voltage linear accelerometer |
| LIS3LV02DLTR | 功能描述:加速计 - 板上安装 MEMS INERTIAL snsr 3 axis RoHS:否 制造商:Murata 传感轴:Double 加速:12 g 灵敏度: 封装 / 箱体: 输出类型:Analog 数字输出 - 位数:11 bit 电源电压-最大:5.25 V 电源电压-最小:4.75 V 电源电流:4 mA 最大工作温度:+ 125 C 最小工作温度:- 40 C |
| LIS3LV02DL-TR | 制造商:STMicroelectronics 功能描述:MEMS INERTIAL SENSOR |
| LIS3LV02DQ | 功能描述:加速计 - 板上安装 3-axis +/-2g/+/-6g MEMS Intertial Sensr RoHS:否 制造商:Murata 传感轴:Double 加速:12 g 灵敏度: 封装 / 箱体: 输出类型:Analog 数字输出 - 位数:11 bit 电源电压-最大:5.25 V 电源电压-最小:4.75 V 电源电流:4 mA 最大工作温度:+ 125 C 最小工作温度:- 40 C |
| LIS3LV02DQ-TR | 功能描述:加速计 - 板上安装 INERTIAL SENSOR Lo Vltg 3Axis RoHS:否 制造商:Murata 传感轴:Double 加速:12 g 灵敏度: 封装 / 箱体: 输出类型:Analog 数字输出 - 位数:11 bit 电源电压-最大:5.25 V 电源电压-最小:4.75 V 电源电流:4 mA 最大工作温度:+ 125 C 最小工作温度:- 40 C |
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