Datasheet

LIS2DH Digital interfaces
Doc ID 022516 Rev 1 27/49
5.2.1 SPI read
Figure 7. SPI read protocol
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)
CS
SPC
SDI
SDO
RW
DO7 DO6 DO5 DO4 DO3 DO2 DO1 DO0
AD5 AD4 AD3 AD2 AD1 AD0
MS
AM10130V1
C S
SPC
SDI
SDO
RW
DO 7 DO 6 DO 5 DO 4 DO 3 DO 2 DO 1 DO 0
AD5 AD4 AD 3 AD2 AD1 AD0
DO 15 DO 14 DO 13 DO 12 DO 11 DO 10 D O9 D O8
M S
AM10131V1