mfr4200 Freescale Semiconductor, Inc, mfr4200 Datasheet - Page 170

• Manufacturer Part Number: mfr4200
• Description: Flexray Communication Controllers
• Manufacturer: Freescale Semiconductor, Inc

MFR4200 FlexRay Communication Controller
3.5.4.1
Receive message buffers can be configured in the configuration state. The configuration must be done in
accordance with the configuration procedure and principles. The CFG bits in the BUFCSnR of receive
message buffers are 0.
The number of receive message buffers is configurable; however, receive message buffers cannot be placed
between FIFO buffers or between the host and CC parts of double transmit message buffers. Receive
message buffers cannot be double message buffers.
170
Receive Message Buffer Configuration
Buffer 10
Buffer 12
Buffer 13
Buffer 14
Buffer 16
Buffer 17
Buffer 18
Buffer 52
Buffer 54
Buffer 56
Buffer 58
Buffer 0
Buffer 1
Buffer 2
Buffer 3
Buffer 4
Buffer 5
Buffer 6
Buffer 7
Buffer 8
Buffer 9
Buffer
Buffer
Buffer
Buffer
Buffer
Buffer
…
Figure 3-134. Example of a Buffer Configuration
MFR4200 Data Sheet, Rev. 0
- Receive FIFO Buffer
- Receive Message Buffer
- Transmit Message Buffer (Dynamic segment)
- Transmit Message Buffer (Static segment)
Buffer 11
Buffer 15
Buffer 19
Buffer 53
Buffer 55
Buffer 57
Buffer
...
Host cannot reconfigure
- Single Buffer
- Double Buffer
Host can reconfigure
the FIFO size during
those buffers during
Normal mode of
Normal mode of
operation
operation
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