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參數(shù)資料
| 型號： | LSM330DL |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 模擬信號調(diào)理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, PBGA28 |
| 封裝： | 7.50 X 4.40 MM, 1.10 MM HEIGHT, GREEN, PLASTIC, LGA-28 |
| 文件頁數(shù)： | 15/54頁 |
| 文件大?。?/td> | 1064K |
| 代理商： | LSM330DL |
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Digital interfaces
LSM330DL
22/54
Doc ID 022018 Rev 1
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 own address. If they match, the device considers itself
addressed by the Master.
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 LSM330DL behaves like a slave device and the following
protocol must be adhered to. After the start condition (ST) a slave address is sent, once a
slave acknowledge (SAK) has been returned, an 8-bit sub-address (SUB) will be
transmitted: the 7 LSb represents the actual register address while the MSB enables the
address auto increment. If the MSb of the SUB field is ‘1’, the SUB (register address) will be
automatically increased to allow multiple data read/writes.
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
Table 12.
Transfer when master is writing one byte to slave
Master
ST
SAD + W
SUB
DATA
SP
Slave
SAK
Table 13.
Transfer when master is writing multiple bytes to slave
Master
ST
SAD + W
SUB
DATA
SP
Slave
SAK
Table 14.
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 15.
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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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| LSM330DLC | 功能描述:加速計 - 板上安裝 iNEMO 3D SIP Module 2.4V to 3.6V IO 1.8V RoHS:否 制造商:Murata 傳感軸:Double 加速:12 g 靈敏度: 封裝 / 箱體: 輸出類型:Analog 數(shù)字輸出 - 位數(shù):11 bit 電源電壓-最大:5.25 V 電源電壓-最小:4.75 V 電源電流:4 mA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C |
| LSM330DLCTR | 功能描述:加速計 - 板上安裝 iNEMO 3D SIP Module 2.4V to 3.6V IO 1.8V RoHS:否 制造商:Murata 傳感軸:Double 加速:12 g 靈敏度: 封裝 / 箱體: 輸出類型:Analog 數(shù)字輸出 - 位數(shù):11 bit 電源電壓-最大:5.25 V 電源電壓-最小:4.75 V 電源電流:4 mA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C |
| LSM330DLTR | 功能描述:加速計 - 板上安裝 Linear Sensor Module 3D ACC 3D Gyro RoHS:否 制造商:Murata 傳感軸:Double 加速:12 g 靈敏度: 封裝 / 箱體: 輸出類型:Analog 數(shù)字輸出 - 位數(shù):11 bit 電源電壓-最大:5.25 V 電源電壓-最小:4.75 V 電源電流:4 mA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C |
| LSM330DTR | 制造商:STMicroelectronics 功能描述:INEMO INERTIAL MODULE: 3D ACCELEROMETER AND 3D GYROSCOPE |
| LSM330TR | 功能描述:加速計 - 板上安裝 Inemo inertial module 3D accelerometer and 3D gyroscope RoHS:否 制造商:Murata 傳感軸:Double 加速:12 g 靈敏度: 封裝 / 箱體: 輸出類型:Analog 數(shù)字輸出 - 位數(shù):11 bit 電源電壓-最大:5.25 V 電源電壓-最小:4.75 V 電源電流:4 mA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C |
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