Intel® PCH EG20T Serial Peripheral Interface Driver: Guide
This document provides the programming details of the Serial Peripheral Interface (SPI) driver for Windows*. This includes information about the interfaces exposed by the driver and how to use those interfaces to drive the SPI hardware.
The SPI bus is a communication bus that operates in full duplex mode. Devices ...communicate in master/slave mode, in which the master device initiates the data transfer. The SPI hardware supports four different modes for communication.
Read the full Intel® PCH EG20T Serial Peripheral Interface Driver Programmer’s Guide.