Datasheet

Digital interfaces LIS3DH
30/54 DocID17530 Rev 2
6.2.3 SPI read in 3-wire mode
3-wire mode is entered by setting the bit SIM (SPI serial interface mode selection) to ‘1’ in
CTRL_REG4 (23h).
Figure 11. SPI read protocol in 3-wire mode
The SPI read command is performed with 16 clock pulses:
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).
The multiple read command is also available in 3-wire mode.
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