Data Sheet

MLX90393
Micropower Triaxis® Magnetometer Datasheet
8.3 SPI Communication
The MLX90393 can handle SPI communication at a bitrate of 10Mhz. The SPI communication is
implemented in a half-duplex way, showing high similarities with I2C communication, but addressing
through the \CS (Chip Select) pin instead of through bus arbitration. The half-duplex nature is at the basis of
the supported 3-wire SPI operation. SPI mode 3 is implemented: CPHA=1 (data changed on leading edge
and captured on trailing edge, and CPOL=1 (high level is inactive state). The Chip Select line is active-low.
The communication is also bundled in bytes, equally MSB first and MSByte first. A command can of course
consist of more than 1 byte (refer to Chapter 8.1) as can the response be from the MLX90393 in the form of
multiple bytes after the status byte (not shown in Figure 5)
3901090393 Data Sheet
Rev002 Page 14 Feb-2015