upd70f3422gj-gae-qs-ax Renesas Electronics Corporation., upd70f3422gj-gae-qs-ax Datasheet - Page 724
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upd70f3422gj-gae-qs-ax
Manufacturer Part Number
upd70f3422gj-gae-qs-ax
Description
32-bit Single-chip Microcontroller
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.UPD70F3422GJ-GAE-QS-AX.pdf
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Chapter 19
724
When TOVF bit = 1, message
buffer number is stored
(overwritten) to element indicated
by LOPT-1.
Figure 19-30
Last out-message
pointer (LOPT)
Last out-message
pointer (LOPT)
Transmit history list (THL)
Transmit history list (THL)
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
Transmit history list
Preliminary User’s Manual U17566EE1V2UM00
Message buffer 3
Message buffer 8
Message buffer 4
Message buffer 7
Message buffer 2
Message buffer 9
Message buffer 6
Message buffer 3
Message buffer 7
Message buffer 2
Message buffer 9
If transmission from
message buffers 3 and 4
is completed
Transmit
history
list get
pointer
(TGPT)
Transmit history list
get pointer (TGPT)
When message buffer 6 is read
When transmission from message
buffer 3 is completed.
Last out-message
pointer (LOPT)
LOPT is locked.
Last
out-message
pointer (LOPT)
Transmit history list (THL)
Transmit history list(THL)
7
6
5
4
3
2
1
7
6
5
4
3
2
1
0
0
Message buffer 5
Message buffer 4
Message buffer 8
Message buffer 3
Message buffer 7
Message buffer 2
Message buffer 9
Message buffer 4
Message buffer 3
Message buffer 7
Message buffer 2
Message buffer 9
When THL is full
CAN Controller (CAN)
TOVF bit is set.
Transmit history list
get pointer (TGPT)
Transmit history list
get pointer (TGPT)
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