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| 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： | 16/48页 |
| 文件大小： | 681K |
| 代理商： | LIS3LV02DL |
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LIS3LV02DL
Digital interfaces
23/48
5.1.1
I2C operation
The transaction on the bus is started through a START (ST) signal. A START condition is
defined as a HIGH to LOW transition on the data line while the SCL line is held HIGH. After
this has been transmitted by the Master, the bus is considered busy. The next byte of data
transmitted after the start condition contains the address of the slave in the first 7 bits and
the eighth bit tells whether the Master is receiving data from the slave or transmitting data to
the slave. When an address is sent, each device in the system compares the first seven bits
after a start condition with its address. If they match, the device considers itself addressed
by the Master. The Slave ADdress (SAD) associated to the LIS3LV02DL is 0011101b.
Data transfer with acknowledge is mandatory. The transmitter must release the SDA line
during the acknowledge pulse. The receiver must then pull the data line LOW so that it
remains stable low during the HIGH period of the acknowledge clock pulse. A receiver which
has been addressed is obliged to generate an acknowledge after each byte of data
received.
The I2C embedded inside the LIS3LV02DL behaves like a slave device and the following
protocol must be adhered to. After the start condition (ST) a salve address is sent, once a
slave acknowledge (SAK) has been returned, a 8-bit sub-address will be transmitted: the 7
LSb represent the actual register address while the MSB enables address auto increment. If
the MSb of the SUB field is 1, the SUB (register address) will be automatically incremented
to allow multiple data read/write.
The slave address is completed with a Read/Write bit. If the bit was ‘1’ (Read), a repeated
START (SR) condition will have to be issued after the two sub-address bytes; if the bit is ‘0’
(Write) the Master will transmit to the slave with direction unchanged.
Table 11.
Transfer when master is writing one byte to slave
Master
ST
SAD + W
SUB
DATA
SP
Slave
SAK
Table 12.
Transfer when master is writing multiple bytes to slave
Master
ST
SAD + W
SUB
DATA
SP
Slave
SAK
Table 13.
Transfer when master is receiving (reading) one byte of data from slave
Master
ST
SAD + W
SUB
SR
SAD + R
NMAK
SP
Slave
SAK
DATA
Table 14.
Transfer when master is receiving (reading) multiple bytes of data from slave
Master
ST SAD+W
SUB
SR SAD+R
MAK
NMAK
SP
Slave
SAK
DATA
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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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