NXP Semiconductors K22F series - Introduction; Chapter 45; Block Diagram

Chapter 45
Serial Peripheral Interface (SPI)
45.1 Introduction
NOTE
For the chip-specific implementation details of this module's
instances, see the chip configuration information.
The serial peripheral interface (SPI) module provides a synchronous serial bus for
communication between a chip and an external peripheral device.
45.1.1
Block Diagram
The block diagram of this module is as follows:
K22F Sub-Family Reference Manual, Rev. 4, 08/2016
NXP Semiconductors 1123