MPC5510 Microcontroller Family Reference Manual, Rev. 1
Freescale Semiconductor
30-1
Preliminary
Chapter 30 FlexRay Communication Controller (FLEXRAY)
30.1
Introduction
30.1.1
Reference
The following documents are referenced.
•
FlexRay Communications System Protocol Specification, Version 2.1 Rev A
•
FlexRay Communications System Electrical Physical Layer Specification, Version 2.1 Rev A
30.1.2
Glossary
This section provides a list of terms used in the description of the FlexRay block.
Table 30-1. List of Terms (Sheet 1 of 2)
Term
Definition
BCU
Buffer Control Unit. Handles message buffer access.
BMIF
Bus Master Interface. Provides master access to FlexRay memory block.
CC
Communication Controller
CDC
Clock Domain Crosser
CHI
Controller Host Interface
Cycle length in
μ
T
The actual length of a cycle in
μ
T for the ideal controller (+/- 0 ppm)
EBI
External Bus Interface
FRM
FlexRay Memory. Memory to store message buffer payload, header, and status, and to store
synchronization frame related tables.
FSS
Frame Start Sequence
HIF
Host Interface. Provides host access to FlexRay block.
Host
The FlexRay CC host MCU
LUT
Look Up Table. Stores message buffer header index value.
MB
Message Buffer
MBIDX
Message Buffer Index: the position of a header field entry within the header area. If the header area
is accessed as an array, this is the same as the array index of the entry.
MBNum
Message Buffer Number: Position of message buffer configuration registers within the register map.
For example, Message Buffer Number 5 corresponds to the MBCCS5 register.
MCU
Microcontroller Unit
μ
T
Microtick
MT
Macrotick
MTS
Media Access Test Symbol
NIT
Network Idle Time