Data Sheet

Digital interfaces LPS25HB
28/50 DocID027112 Rev 4
6.3.1 SPI read
Figure 14. SPI read protocol
The SPI read command is performed with 16 clock pulses. The multiple byte read command
is performed by adding blocks of 8 clock pulses to the previous one.
bit 0: READ bit. The value is 1.
bit 1: MS bit. When 0, does not increment the address; when 1, increments the address in
multiple reads.
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 is read from the device (MSb first).
bit 16-...: data DO(...-8). Further data in multiple byte
reads
.
Figure 15.
Multiple byte SPI read protocol (2-byte example)
CS
SPC
SDI
SDO
RW
DO7 DO6 DO5 DO4 DO3 DO2 DO1 DO0
AD5 AD4 AD3 AD2 AD1 AD0
MS
CS
SPC
SDI
SDO