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LIS331DLF
Digital interfaces
Doc ID 15101 Rev 4
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The SPI read command is performed with 16 clock pulses. Multiple byte read command is
performed adding blocks of 8 clock pulses at the previous one.
bit 0: READ bit. The value is 1.
bit 1: MS bit. When 0 do not increment address, when 1 increment address in multiple
reading.
bit 2-7: address AD(5:0). 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).
bit 16-... : data DO(...-8). Further data in multiple byte reading.
Figure 8.
Multiple bytes SPI read protocol (2 bytes example)
5.2.2
SPI write
Figure 9.
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.
CS
SPC
SDI
SDO
RW
DO7DO6 DO5DO4 DO3DO2 DO1DO0
AD5 AD4 AD3 AD2 AD1 AD0
DO15DO14DO13DO12DO11DO10DO9 DO8
MS
CS
SPC
SDI
RW
DI7
DI6
DI5
DI4
DI3
DI2
DI1
DI0
AD5 AD4 AD3 AD2 AD1 AD0
MS



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