The host interface can be provided through a SPI,
UART, or CAN-FD interface. In some
cases the serial interface for industrial applications is transcoded to a
different serial standard.
The
IWRL6432W device communicates with the host radar processor over the
following control signals:
- Reference Clock – Reference clock available for host processor after device wakeup
- Control – 4-port standard SPI (peripheral) for
host control . All radio control commands (and response) flow through this
interface
- Reset – Active-low reset for device wakeup from
host
- Host Interrupt - an indication that the mmWave
sensor needs host interface
- Error – Used for notifying the host in case the radio controller detects a fault