Table of Contents
Advertisement
Figure 23.13-1 Examples of Operation of Multi-level Message Buffer
Initialization
Select AMR0.
ID28 to ID18
Message buffer 13
Message buffer 14
Message buffer 15
Message receiving
ID28 to ID18
Message receiving
Message buffer 13
Message buffer 14
Message buffer 15
Message receiving
Message receiving
Message buffer 13
Message buffer 14
Message buffer 15
Message receiving
Message receiving
Message buffer 13
Message buffer 14
Message buffer 15
Message receiving "An overrun occurs (ROVR13 = 1) and the received message is stored in message buffer 13.
Message receiving
Message buffer 13
Message buffer 14
Message buffer 15
Note:
Four messages are received with the same acceptance filter set in message buffers 13, 14 and 15.
AMS15, AMS14, AMS13
AMSR
10 10 10
. . .
AM28 to AM18
AMS0
0000 1111 111
. . .
0101 0000 000
0
0101 0000 000
0
0
0101 0000 000
Mask
"The received message is stored in message buffer 13.
0101 1111 000
0
0101 1111 000
0
0101 0000 000
0
0101 0000 000
0
"The received message is stored in message buffer 14.
0101 1111 001
0
0101 1111 000
0
0101 1111 001
0
0101 0000 000
0
"The received message is stored in message buffer 15.
0101 1111 010
0
0101 1111 000
0
0101 1111 001
0
0101 1111 010
0
0101 1111 011
0
0101 1111 011
0
0101 1111 001
0
0101 1111 010
0
IDE
RCR
0
0
0
. . .
. . .
ROVRR
0
0
0
. . .
IDE
. . .
. . .
0
0
1
RCR
. . .
ROVRR
0
0
0
. . .
. . .
. . .
RCR
0
1
1
. . .
ROVRR
0
0
0
. . .
. . .
. . .
RCR
1
1
1
. . .
ROVRR
0
0
0
. . .
. . .
. . .
RCR
1
1
1
. . .
ROVRR
0
0
1
. . .
CHAPTER 23 CAN CONTROLLER
RC15, RC14, RC13
. . .
. . .
ROVR15, ROVR14, ROVR13
. . .
. . .
. . .
. . .
. . .
. . .
. . .
. . .
515
Advertisement
Table of Contents
