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Chapter 19
CAN Controller (CAN)
Preliminary User’s Manual U17566EE1V2UM00
Figure 19-28
Receive history list
23
1
2
3
4
5
6
7
Receive history list (RHL)
23
1
2
3
4
5
6
7
Receive history list (RHL)
Last in-message
pointer (LIPT)
23
0
1
2
3
4
5
6
7
23
1
2
3
4
5
6
7
0
When RHL is full
ROVF bit is set.
:
:
:
When message buffer 6 is read
:
:
:
:
:
:
22
0
0
22
22
22
Message buffer 7
Message buffer 2
Message buffer 9
Message buffer 6
If message is stored in message
buffers 3, 4, and 8
Message buffer 8
Message buffer 4
Message buffer 3
Message buffer 7
Message buffer 2
Message buffer 9
Receive history
list get pointer
(RGPT)
Receive history list (RHL)
Message buffer 1
Message buffer 5
Message buffer 8
Message buffer 4
Message buffer 3
Message buffer 7
Message buffer 2
Message buffer 9
Message buffer 9
Receive history
list get pointer
(RGPT)
Last in-message
pointer (LIPT)
LIPT is locked.
Receive history
list get pointer
(RGPT)
Receive history
list get pointer
(RGPT)
Last in-message
pointer (LIPT)
Message buffer 3
Message buffer 9
Message buffer 7
Message buffer 5
Message buffer 3
Message buffer 4
Message buffer 8
Message buffer 2
Message buffer 9
Receive history list (RHL)
When ROVF bit = 1,
message buffer number is
stored (overwritten) to
element indicated by LIPT-1.
Last in-message
pointer (LIPT)
When message buffer 3
receives and stores more messages
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