upd70f3422gj-gae-qs-ax Renesas Electronics Corporation., upd70f3422gj-gae-qs-ax Datasheet - Page 716

• Manufacturer Part Number: upd70f3422gj-gae-qs-ax
• Description: 32-bit Single-chip Microcontroller
• Manufacturer: Renesas Electronics Corporation.

Chapter 19
716
When ROVF bit = 1,
message buffer number is
stored (overwritten) to
element indicated by LIPT-1.
Last in-message
pointer (LIPT)
Last in-message
pointer (LIPT)
Figure 19-28
22
23
23
22
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
Receive history list (RHL)
Receive history list (RHL)
Message buffer 3
Message buffer 9
Receive history list
Preliminary User’s Manual U17566EE1V2UM00
Message buffer 7
Message buffer 2
Message buffer 9
Message buffer 6
Message buffer 5
Message buffer 8
Message buffer 4
Message buffer 3
Message buffer 7
Message buffer 2
Message buffer 9
:
:
:
When message buffer 3
receives and stores more messages
Receive history
list get pointer
(RGPT)
Receive history
list get pointer
(RGPT)
If message is stored in message
buffers 3, 4, and 8
When message buffer 6 is read
Last in-message
pointer (LIPT)
Last in-message
pointer (LIPT)
LIPT is locked.
23
22
23
22
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
Receive history list (RHL)
Receive history list (RHL)
Message buffer 8
Message buffer 4
Message buffer 3
Message buffer 7
Message buffer 2
Message buffer 9
Message buffer 1
Message buffer 9
Message buffer 5
Message buffer 8
Message buffer 4
Message buffer 3
Message buffer 7
Message buffer 2
Message buffer 9
:
:
:
:
:
:
When RHL is full
CAN Controller (CAN)
ROVF bit is set.
Receive history
list get pointer
(RGPT)
Receive history
list get pointer
(RGPT)