
R01UH0336EJ0102 Rev.1.02
Page 1085 of 1538
Jul 17, 2014
V850E2/PG4-L
Section 20 CAN Controller (FCN)
(b)
FCNnCMRGRX Write
(12)
FCNnCMLOSTR - FCNn Module Last Out-Pointer Register
This register indicates the number of the message buffer, from which a data
frame or a remote frame was transmitted last.
Access
This register is read-only in 8-bit units.
Address
<FCNn_base> + 0 0288
H
Initial value
Undefined
Caution
The value read from the FCNnCMLOSTR register is undefined if a data frame
or remote frame has never been transmitted from the message buffer. Therefor
when FCNnCMTGTX.FCNnCMTGSSPM is set at transition from initial mode
to operation mode, read value of FCNnCMLOSTR is undefined.
15
14
13
12
11
10
9
8
0
0
0
0
0
0
0
0
7
6
5
4
3
2
1
0
0
0
0
0
0
0
0
FCNnCM
RGCLRV
FCNnCMRGCLRV
Clearing FCNnCMRGRVFF
0
FCNnCMRGRVFF bit is not changed.
1
FCNnCMRGRVFF bit is cleared to 0.
7
6
5
4
3
2
1
0
FCNnCMLOSSLT[7:0]
FCNnCMLOSSLT
[7:0]
Last Out-pointer of Transmit History List
0 to 31
When FCNnCMLOSSLT is read, the contents of the element
indexed by the last out-pointer (FCNnCMLOSTR[7:0]) of the
transmit history list are read. These contents indicate the
number of the message buffer to which a data frame or a
remote frame was transmitted last.