參數(shù)資料
型號: LIS3L02DS
廠商: STMICROELECTRONICS
元件分類: 模擬信號調(diào)理
英文描述: SPECIALTY ANALOG CIRCUIT, PDSO24
封裝: PLASTIC, SO-24
文件頁數(shù): 2/18頁
文件大小: 511K
代理商: LIS3L02DS
LIS3L02DS
10/18
2.2.2 SPI Read
Figure 3. SPI Read protocol
The SPI Read command consists is performed with 16 clocks pulses:
– bit 0: READ bit. The value is 1.
– bit 1-7: address AD(6:0). This is the address field of the indexed register.
– bit 8-15: data DO(7:0) (read mode). This is the data that will be read from the device (MSb first).
2.2.3 SPI Write
Figure 4. SPI Write protocol
The SPI Write command consists is performed with 16 clocks pulses.
– bit 0: WRITE bit. The value is 0.
– bit 1-7: address AD(3:0). 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).
2.2.4 SPI Read in 3-wires mode
3-wires mode is entered by setting to 1 bit SIM (SPI Serial Interface Mode selection) in A_IF_CTRL2.
Figure 5. SPI Read protocol in 3-wires model
The SPI Read command consists is performed with 16 clocks pulses:
– bit 0: READ bit. The value is 1.
– bit 1-7: address AD(6:0). This is the address field of the indexed register.
– bit 8-15: data DO(7:0) (read mode). This is the data that will be read from the device (MSb first).
CS
SPC
SPDI
SPDO
RW
DO7 DO6 DO5 DO4 DO3 DO2 DO1 DO0
AD6 AD5 AD4 AD3 AD2 AD1 AD0
CS
SPC
SPDI
RW
DI7
DI6
DI5
DI4
DI3
DI2
DI1
DI0
AD6 AD5 AD4 AD3 AD2 AD1 AD0
CS
SPC
SPDI/O
RW
DO7 DO6 DO5 DO4 DO3 DO2 DO1 DO0
AD6 AD5 AD4 AD3 AD2 AD1 AD0
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