MPC5566 Microcontroller Reference Manual, Rev. 2
Freescale Semiconductor 22-1
 
Chapter 22  
FlexCAN2 Controller Area Network
22.1 Introduction
The device MCU contains four controller area network (FlexCAN2) modules. Each FlexCAN2 module is 
a communication controller implementing the CAN protocol according to CAN Specification version 2.0B 
and ISO Standard 11898. 
Each FlexCAN2 module contains a 1024-byte embedded memory, capable of storing up to 64 message 
buffers (MBs). The respective functions are described in subsequent sections.
This FlexCAN2 version implements individual mask registers and a reception queue thereby allowing 
queuing of received frames before requiring interrupt processing. Also included is a feature for disabling 
self-reception of TX frames.