upd70f3422gj-gae-qs-ax Renesas Electronics Corporation., upd70f3422gj-gae-qs-ax Datasheet - Page 708
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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
708
RDY
0
1
CnMCTRLm
Message buffer ready bit
The message buffer can be written by software. The CAN module cannot write to the message
buffer.
Writing the message buffer by software is ignored (except a write access to the RDY, TRQ, DN, and
MOW bits). The CAN module can write to the message buffer.
Caution
Caution
15
0
7
0
Do not clear the RDY bit (0) during message transmission.
(b) Write
Do not set the DN bit to 1 by software. Be sure to write 0 to bit 10.
Preliminary User’s Manual U17566EE1V2UM00
Clear MOW
Clear DN
Set TRQ
Set RDY
Set IE
0
1
1
0
0
1
0
1
0
1
Other than above
Other than above
Other than above
14
0
6
0
Setting of MOW bit
MOW bit is not changed.
MOW bit is cleared to 0.
Setting of DN bit
DN bit is cleared to 0.
DN bit is not changed.
Clear TRQ
Clear RDY
13
Clear IE
0
5
0
1
0
1
0
1
0
MOW
Clear
12
0
4
Setting of IE bit
IE bit is cleared to 0.
IE bit is set to 1.
IE bit is not changed.
Setting of TRQ bit
TRQ bit is cleared to 0.
TRQ bit is set to 1.
TRQ bit is not changed.
Setting of RDY bit
RDY bit is cleared to 0.
RDY bit is set to 1.
RDY bit is not changed.
Clear
Set
11
IE
IE
3
Clear
DN
10
0
2
CAN Controller (CAN)
Clear
TRQ
TRQ
Set
9
1
Clear
RDY
RDY
Set
8
0
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