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S9S12GN48F0CLH Datasheet, PDF (583/1292 Pages) Freescale Semiconductor, Inc – MC9S12G Family Reference Manual and Data Sheet | |||
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Chapter 18
Freescaleâs Scalable Controller Area Network
(S12MSCANV3)
Revision
Number
Revision Date
V03.11
V03.12
V03.13
31 Mar 2009
09 Aug 2010
03 Mar 2011
Table 18-1. Revision History
Sections
Affected
Table 18-37
Figure 18-4
Table 18-3
Description of Changes
⢠Orthographic corrections
⢠Added âBosch CAN 2.0A/Bâ to bit time settings table
⢠Corrected CANE write restrictions
⢠Removed footnote from RXFRM bit
18.1 Introduction
Freescaleâs scalable controller area network (S12MSCANV3) deï¬nition is based on the MSCAN12
deï¬nition, which is the speciï¬c implementation of the MSCAN concept targeted for the M68HC12
microcontroller family.
The module is a communication controller implementing the CAN 2.0A/B protocol as deï¬ned in the
Bosch speciï¬cation dated September 1991. For users to fully understand the MSCAN speciï¬cation, it is
recommended that the Bosch speciï¬cation be read ï¬rst to familiarize the reader with the terms and
concepts contained within this document.
Though not exclusively intended for automotive applications, CAN protocol is designed to meet the
speciï¬c requirements of a vehicle serial data bus: real-time processing, reliable operation in the EMI
environment of a vehicle, cost-effectiveness, and required bandwidth.
MSCAN uses an advanced buffer arrangement resulting in predictable real-time behavior and simpliï¬ed
application software.
MC9S12G Family Reference Manual, Rev.1.23
Freescale Semiconductor
585
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