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參數(shù)資料
| 型號： | LIS3L02DQ-TR |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 模擬信號調(diào)理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, QCC44 |
| 封裝： | 7 X 7 MM, 1.80 MM HEIGHT, QFN-44 |
| 文件頁數(shù)： | 2/20頁 |
| 文件大?。?/td> | 473K |
| 代理商： | LIS3L02DQ-TR |
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6.3 SPI Bus Interface
The SPI interface present inside the LIS3L02DQ is a bus slave. The SPI allows to write and read the reg-
SDO.The maximum frequency is related to the Vdd_IO supply voltage.In particular in the 2.4 V - 3.6 V
range is 8 MHz while under 2.4 V is 4 MHz.
6.3.1 Read & Write registers
Figure 5. Read & write protocol
CS is the Serial Port Enable and it is controlled by the SPI master. It goes low at the start of the transmis-
sion 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. 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) starts at the last falling edge of SPC just before the rising
edge of CS.
– bit 0: RW bit. When 0, the data DI(7:0) is written into the device. When 1, the data DO(7:0) from the
device is read. In latter case, the chip will drive SDO at the start of bit 8.
– bit 1-7: address AD(6:0). This is the address field of the indexed register.
– bit 8-15: data DI(7:0) (write mode). This is the data that will be written into the device (MSB first).
– bit 8-15: data DO(7:0) (read mode). This is the data that will be read from the device (MSB first).
6.3.2 SPI Read
Figure 6. SPI Read protocol
The SPI Read command consists of 16 clock pulses:
– bit 0: READ bit. The value is 1.
CS
SPC
SPDI
SPDO
RW
AD6 AD5 AD4 AD3 AD2 AD1 AD0
DI7DI6
DI5DI4
DI3DI2
DI1
DI0
DO7 DO6 DO5 DO4 DO3 DO2 DO1 DO0
CS
SPC
SDI
SPDO
RW
DO7 DO6 DO5 DO4 DO3 DO2 DO1 DO0
AD6 AD5 AD4 AD3 AD2 AD1 AD0
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| LIS3L02DS | 制造商:STMicroelectronics 功能描述: |
| LIS3L06AL | 功能描述:加速計 - 板上安裝 3-axis +/-2g/+/-6g MEMS Intertial Sensr 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 |
| LIS3L06AL_06 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:MEMS INERTIAL SENSOR-3-axis - +/-2g/6g ultracompact linear accelerometer |
| LIS3L06ALTR | 功能描述:加速計 - 板上安裝 MEMS INERTIAL snsr 3 axis 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 |
| LIS3LV02DL | 功能描述:加速計 - 板上安裝 MEMS INERTIAL SENSOR 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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