MOD5234-100IR NetBurner Inc, MOD5234-100IR Datasheet - Page 455

• Manufacturer Part Number: MOD5234-100IR
• Description: MOD5234 10/100 ETHERNET MODULE
• Manufacturer: NetBurner Inc
• Type: Controllers & Processorsr

Specifications of MOD5234-100IR

• Interface: I²C, SPI, UART
• Voltage - Supply: 2.5V
• Mounting Type: Surface Mount
• Package / Case: Module
• Product: Modules
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Data Format: -
• Baud Rates: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: Q4483564

Chapter 21
FlexCAN
21.1 Introduction
The MCF5233 and MCF5235 devices contain two FlexCAN modules. Note that the MCF5232
and MCF5234 contain only one FlexCAN module (denoted as FlexCAN0 or CAN0 throughout
this section). Please refer to
Table 1-1
for details on device configurations.
The FlexCAN is a communication controller implementing the controller area network (CAN)
protocol, an asynchronous communications protocol used in automotive and industrial control
systems. It is a high speed (1 Mbps), short distance, priority based protocol that can communicate
using a variety of mediums (for example, fiber optic cable or an unshielded twisted pair of wires).
The FlexCAN supports both the standard and extended identifier (ID) message formats specified
in the CAN protocol specification, revision 2.0, part B.
The CAN protocol was primarily, but not only, designed to be used as a vehicle serial data bus,
meeting the specific requirements of this field: real-time processing, reliable operation in the EMI
environment of a vehicle, cost-effectiveness, and required bandwidth. A general working
knowledge of the CAN protocol revision 2.0 is assumed in this document. For details, refer to the
CAN protocol revision 2.0 specification.
21.1.1 Block Diagram
A block diagram describing the various submodules of the FlexCAN module is shown in
Figure
21-1. Each submodule is described in detail in subsequent sections. The message buffer
architecture is shown in
Figure
21-2.
MCF5235 Reference Manual, Rev. 2
Freescale Semiconductor
21-1