PXR40RM Datasheet, PDF (811/1434 Pages) Freescale Semiconductor, Inc – PXR40 Microcontroller

Chapter 24
FlexCAN Module
24.1 Introduction
This device has four FlexCAN modules: A, B, C, and D. The remainder of this chapter describes one
module.
Each FlexCAN module is a communication controller implementing the CAN protocol according to the
CAN 2.0B protocol specification [Ref. 1]. A general block diagram is shown in Figure 24-1, which
describes the main sub-blocks implemented in the FlexCAN module, including two embedded memories,
one for storing Message Buffers (MB) and another one for storing Rx Individual Mask Registers. Support
for 64 Message Buffers is provided. The functions of the sub-modules are described in subsequent
sections.
Freescale Semiconductor
PXR40 Microcontroller Reference Manual, Rev. 1
24-1