What is Processor Expert ?

Processor Expert Software is a development system to create, configure, optimize, migrate, and deliver software components that generate source code for Freescale silicon.

The main features of PEx are:

Extensive and comprehensive knowledgebase for all supported silicon encapsulating all pins, registers, etc.
Silicon resource conflicts flagged at design time, allowing early correction
Simple creation of peripheral drivers without reading silicon documentation
Easy integration of an RTOS with peripheral drivers
The generated drivers have a cross-platform API that allows easy migration among supported processors.

The user builds an application or library using a wide range of basic building block called Embedded components covering all common tasks (for example, serial communication, timers, ADC, DAC, digital I/O etc.). These components can be configured in graphical user interface and Processor Expert generate a C source code of initialization and runtime control drivers of the processor and its peripherals.

Processor Expert is available:

Integrated with CodeWarrior for Microcontrollers
As a standalone package called Microcontroller Driver Suite. It supports Kinetis and ColdFire+ microcontrollers. It does not include a compiler or linker and can be used with other non-CodeWarrior IDEs.
Integrated with Kinetis Design Stuido (KDS)

For more details, refer to the Freescale website http://www.freescale.com/processorexpert.