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FlexCAN
23-2
Freescale Semiconductor
The message buffer architecture is shown in
.
Figure 23-2. FlexCAN Message Buffer Architecture
23.1.1.1
The CAN System
A typical CAN system is shown below in
. Each CAN station is connected physically to the
CAN bus through a transceiver. The transceiver provides the transmit drive, waveshaping, and
receive/compare functions required for communicating on the CAN bus. It can also provide protection
against damage to the FlexCAN caused by a defective CAN bus or defective stations.
Figure 23-3. Typical CAN System
Data
Buffer 0
ID
Time Stamp
Data Length
Data
•
•
•
•
•
•
•
•
Mask 15
Mask 14
Transparent to User
Rx Shifter
Tx Shifter
Serial Buffers
Tx
Rx
Control
Global Mask
Interrupt Request
Data
•
•
•
•
•
•
1
6
T
ransmit/R
e
ceiv
e
Me
ssa
ge Buff
ers
Buffer 13
Buffer 14
Buffer 15
CAN Bus
FlexCAN
CANRX
Transceiver
CAN Station 1
CAN Station 2
CANTX
ColdFire Processor
CAN Station n
MCF5329 Reference Manual, Rev 3
Summary of Contents for MCF5329
Page 106: ...ColdFire Core 3 32 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 148: ...Cache 5 22 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 154: ...Static RAM SRAM 6 6 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 184: ...Power Management 8 18 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 204: ...Reset Controller Module 10 8 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 220: ...System Control Module SCM 11 16 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 228: ...Crossbar Switch XBS 12 8 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 268: ...General Purpose I O Module 13 40 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 392: ...SDRAM Controller SDRAMC 18 30 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 436: ...Fast Ethernet Controller FEC 19 44 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 594: ...FlexCAN 23 30 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 678: ...Pulse Width Modulation PWM Module 26 22 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 684: ...Watchdog Timer Module 27 6 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 704: ...DMA Timers DTIM0 DTIM3 29 12 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 754: ...UART Modules 31 34 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 770: ...I2 C Interface 32 16 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 866: ...Debug Module 36 50 Freescale Semiconductor MCF5329 Reference Manual Rev 3...