Controlled by the Global Filter Configuration GFC and the Extended ID Filter
Configuration XIDFC Message ID, Remote Transmission Request bit (RTR), and the
Identifier Extension bit (IDE) of received frames are compared against the list of
configured filter elements.
The Extended ID AND Mask XIDAM is ANDed with the received identifier before the
filter list is executed.
reject
GFC[ANFE
[1]
GFC[ANFE
[1]
] = ‘1’
11 / 29 bit identifier
receive filter list enabled
valid frame received
reject remote frames
discard frame
remote frame
11 bit
no
yes
no
yes
yes
no
GFC[RRFE] = ‘0’
append to target FIFO
target FIFO full(blocking)
no
yes
] = ‘0’
GFC[RRFE] = ‘1’
accept non-matching frames
acceptance / rejection
accept
match filter element #0
29 bit
XIDFC[LSE[6:0]] > 0
XIDFC[LSE[6:0]] = 0
match filter element #
XIDFC[LSE]
or Rx Buffer ND =‘1’
or store to Rx Buffer
Figure 3-54. Extended Message ID Filter Path
Functional Description
MPC5777C Reference Manual Addendum, Rev. 1, 12/2015
102 Freescale Semiconductor, Inc.
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