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R01UH0336EJ0102 Rev.1.02
Page 1077 of 1538
Jul 17, 2014
V850E2/PG4-L
Section 20 CAN Controller (FCN)
(5)
FCNnCMERCNT - FCNn Module Error Counter Register
This register indicates the count value of the transmission/reception error
counter.
Access
This register is read-only in 16-bit units.
Address
<FCNn_base> + 0 8250
H
Initial value
0000
H
This register is initialized by various types of reset.
Note
FCNnCMERRECF[6:0] are invalid in the reception error passive state
(FCNnCMINSTR.FCNnCMINSSRE[1:0] = 11
B
).
Note
FCNnCMERTECF[7:0] are invalid in the bus-off state
(FCNnCMINSTR.FCNnCMINBOFF = 1).
15
14
13
12
11
10
9
8
FCNnCM
ERRPSF
FCNnCM
ERRECF[6:0]
7
6
5
4
3
2
1
0
FCNnCM
ERTECF[7:0]
FCNnCMERRPSF
Reception Error Passive Status
0
The reception error counter is not in the error passive
range (less than 128).
1
The reception error counter is in the error passive range
(128 or more).
FCNnCMERRECF[6:0]
Reception Error Counter
0 to 127
Number of reception errors. These bits reflect the status
of the reception error counter. The number of errors is
defined by the CAN protocol.
FCNnCMERTECF[7:0]
Transmission Error Counter
0 to 255
Number of transmission errors. These bits reflect the
status of the transmission error counter. The number of
errors is defined by the CAN protocol.
Содержание V850 Series
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