PXS20RM Datasheet, PDF (858/1368 Pages) Freescale Semiconductor, Inc – PXS20 Microcontroller

FlexRay Communication Controller
Valid Frame Received (vRF)
Yes
Individual
Message Buffer Found
?
No
Store Into Message Buffer (vRF)
Null Frame
(vRF!Header!NFIndicator=0)
?
No
Frame ID Value-
Mask Rejection Filter
?
Passed
Yes
Else
Frame ID
Else
Range Rejection Filter
?
Passed
Frame ID
Else
Range Acceptance Filter
?
Passed
No
Frame Received
in Dynamic Segment
?
Yes
No
Message ID
(vRF!Header!PPIndicator=1)
?
Yes
Message ID
Else
Acceptance Filter
?
Passed
Append to FIFO (vRF)
No
FIFO full
?
Yes
Set FIFO Overflow Interrupt Flag
Ignore frame
Figure 26-148. Received Frame FIFO Filter Path
26-146
PXS20 Microcontroller Reference Manual, Rev. 1
Freescale Semiconductor