The Quad SPI Synchronous Driver
=================================

The Quad SPI Interface (QSPI) is a synchronous serial data link that provides
communication with external devices in master mode.

The driver can be used for SPI serial memory middleware which support flash 
earse, program and read.


Features
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* Initialization/de-initialization
* Enabling/disabling
* Execute command in Serial Memory Mode

Applications
------------

They are commonly used in an application for using serial flash memory operating
in single-bit SPI, Dual SPI and Quad SPI. 

Dependencies
------------

Serial NOR flash with Multiple I/O hardware

Concurrency
-----------

N/A

Limitations
-----------

N.A

Known issues and workarounds
----------------------------

N/A