NXP Semiconductors MPC5644A, Reference Manual, Page: 1539 / 1735

FlexRay Communication Controller (FlexRay)
MPC5644A Microcontroller Reference Manual, Rev. 6
Freescale Semiconductor 1539
• The FlexRay memory area starts at a 16 byte boundary
The FlexRay memory area contains three areas: the message buffer header area , the message buffer data
area , and the sync frame table area .
Figure 33-117. Example of FlexRay memory area layout (FR_MCR[FAM] = 0)
33.6.4.2 FlexRay memory area layout (FR_MCR[FAM] = 1)
Figure 33-118 shows an example layout for the FIFO address mode FR_MCR[FAM] = 1. The following
set of rules applies to the layout of the FlexRay memory area:
• The FlexRay memory area consists of two contiguous regions.
• The size of each region is maximum 64 Kbytes.
• Each region start at a 16 byte boundary.
Messag
e Buffer H
eader Ar
ea
Fl
exRay Memory
Area
Message Buffer Data Area
Sync Frame Table Area
Data Field Offset Frame Header Slot Status
Data Field Offset Frame Header Slot Status
Message Buffer Header Fields
Individual Message Buffers
Receive Shadow Buffers
Data Field Offset Frame Header Slot Status
Data Field Offset Frame Header Slot Status
Message Buffer Header Fields
Receive FIFO A
Data Field Offset Frame Header Slot Status
Data Field Offset Frame Header Slot Status
Message Buffer Header Fields
Receive FIFO B
Data Field Offset Frame Header Slot Status
10 bytes
FR_SYMBADR[SMBA]
System Memory