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Chapter 18
(16)
Access
Address
Initial Value
Note
584
(b) CnRGPT write
15
14
0
0
7
6
0
0
Clear ROVF
Setting of ROVF bit
0
ROVF bit is not changed.
1
ROVF bit is cleared to 0.
CnLOPT - CANn module last out-pointer register
The CnLOPT register indicates the number of the message buffer to which a
data frame or a remote frame was transmitted last.
This register is read-only in 8-bit units.
<CnRBaseAddr> + 062
Undefined
7
6
LOPT7
LOPT6
LOPT5
LOPT7 to
Last out-pointer of transmit history list (LOPT)
LOPT0
When the CnLOPT register is read, the contents of the element indexed
by the last out-pointer (LOPT) of the receive history list are read. These
0 to 31
contents indicate the number of the message buffer to which a data frame
or a remote frame was transmitted last.
The value read from the CnLOPT register is undefined if a data frame or
remote frame has never been transmitted from a message buffer. If the
CnTGPT.THPM bit is set to 1 after the CAN module has changed from the
initialization mode to an operation mode, therefore, the read value of the
CnLOPT register is undefined.
User's Manual U18743EE1V2UM00
13
12
11
0
0
0
5
4
3
0
0
0
H
5
4
3
LOPT4
LOPT3
CAN Controller (CAN)
10
9
0
0
2
1
Clear
0
0
ROVF
2
1
LOPT2
LOPT1
LOPT0
8
0
0
0
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