SPI slave HAL and driver

SPI slave API. More...

Modules
	SPIS HAL
	Hardware access layer for accessing the SPIS peripheral.
	Software controlled SPI slave driver
	Driver for the software controlled SPI slave.

Detailed Description

SPI slave API.

The SPIS HAL provides basic APIs for accessing the registers of the SPIS. The SPIS driver provides APIs on a higher level.