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參數(shù)資料
| 型號： | LIS3LV02DQ-TR |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 模擬信號調(diào)理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, PQCC28 |
| 封裝： | 7 X 7 MM, 1.9 MM HEIGHT, PLASTIC, QFN-28 |
| 文件頁數(shù)： | 14/42頁 |
| 文件大?。?/td> | 379K |
| 代理商： | LIS3LV02DQ-TR |
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LIS3LV02DQ
5 Digital Interfaces
CD00047926
21/42
5.2.2
SPI Write
Figure 7.
SPI Write protocol
The SPI Write command is performed with 16 clock pulses. Multiple byte write command is
performed adding blocks of 8 clock pulses at the previous one.
bit 0: WRITE bit. The value is 0.
bit 1: MS bit. When 0 do not increment address, when 1 increment address in multiple writing.
bit 2 -7: address AD(5:0). 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 inside the device (MSb
first).
bit 16-... : data DI(...-8). Further data in multiple byte writing.
Figure 8.
Multiple bytes SPI Write Protocol (2 bytes example)
5.2.3
SPI Read in 3-wires mode
3-wires mode is entered by setting to 1 bit SIM (SPI Serial Interface Mode selection) in
CTRL_REG2.
Figure 9.
SPI Read protocol in 3-wires mode
CS
SPC
SDI
RW
DI7
DI6
DI5
DI4
DI3
DI2
DI1
DI0
AD5 AD4 AD3 AD2 AD1 AD0
MS
CS
SPC
SDI
RW
AD5 AD4 AD3 AD2 AD1 AD0
DI7 DI6 DI5 DI4 DI3 DI2 DI1 DI0 DI15 DI14 DI13 DI12 DI11 DI10 DI9 DI8
MS
CS
SPC
SDI/O
RW
DO7 DO6 DO5 DO4 DO3 DO2 DO1 DO0
AD5AD4 AD3AD2 AD1 AD0
MS
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