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Figure 21.11-1 Examples of Operation of Multi-level Message Buffer
Note:
Four messages are received with the same acceptance filter set in message buffers 13, 14 and 15.
Initialization
10 10 10
. . .
AMSR
AMS15, AMS14, AMS13
0000 1111 111
AMS0
AM28 to AM18
. . .
RCR
ROVRR
RC15, RC14, RC13
0
0
0
0
0
0
. . .
. . .
ROVR15, ROVR14, ROVR13
Message buffer 13
Message buffer 14
Message buffer 15
0101 0000 000
0101 0000 000
0101 0000 000
0
0
0
. . .
. . .
. . .
ID28 to ID18
IDE
Mask
RCR
ROVRR
0
0
0
0
Message receiving
Message buffer 13
Message buffer 14
Message buffer 15
ID28 to ID18
IDE
0101 1111 000
0101 1111 000
0101 0000 000
0101 0000 000
0
0
0
0
1
0
Select AMR0.
Message receiving: The received message is stored in message buffer 13.
RCR
ROVRR
0
0
1
0
Message receiving
Message buffer 13
Message buffer 14
Message buffer 15
0101 1111 001
0101 1111 000
0101 1111 001
0101 0000 000
0
0
0
0
1
0
Message receiving: The received message is stored in message buffer 14.
Message receiving: The received message is stored in message buffer 15.
RCR
ROVRR
1
0
1
0
Message receiving
Message buffer 13
Message buffer 14
Message buffer 15
0101 1111 010
0101 1111 000
0101 1111 001
0101 1111 010
0
0
0
0
1
0
Message receiving: The received message is stored in message buffer 13.
RCR
ROVRR
1
0
1
0
Message receiving
Message buffer 13
Message buffer 14
Message buffer 15
0101 1111 011
0101 1111 011
0101 1111 001
0101 1111 010
0
0
0
0
1
1
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