LPS001WP

Digital interfaces

Doc ID 18171 Rev 1

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6.2.1

SPI read

Figure 5.

SPI read protocol

The SPI read command is performed with 16 clock pulses. The 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 the address, when 1, increment the address in

multiple readings.

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 readings.

Figure 6.

Multiple bytes SPI read protocol (2 bytes example)

6.2.2

SPI write

Figure 7.

SPI write protocol

CS

SPC

SDI

SDO

RW

DO7DO6 D O5 DO4DO3 D O2 DO1DO0

AD5 AD4 AD3 AD2 AD1 AD0

MS

CS

SPC

SDI

SDO

RW

DO7DO6 D O5 DO4DO3 D O2 DO1DO0

AD5 AD4 AD3 AD2 AD1 AD0

MS

CS

SPC

SDI

SDO

RW

DO7 DO6DO5 DO4 D O3 DO2 DO1 DO0

AD5 AD4 AD 3 AD 2 AD1 AD0

DO1 5DO14DO13DO1 2

DO11DO10DO9 D O8

MS

CS

SPC

SDI

SDO

RW

DO7 DO6DO5 DO4 D O3 DO2 DO1 DO0

AD5 AD4 AD 3 AD 2 AD1 AD0

DO1 5DO14DO13DO1 2

DO11DO10DO9 D O8

MS

CS

SPC

SDI

RW

D I7D I6 D I5DI 4 DI 3DI 2 DI 1DI0

AD5 AD4 AD3 AD2 AD 1 AD0

MS

CS

SPC

SDI

RW

D I7D I6 D I5DI 4 DI 3DI 2 DI 1DI0

AD5 AD4 AD3 AD2 AD 1 AD0

MS

Obsolete

Product(s)

- Obsolete

Product(s)