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R01UH0336EJ0102 Rev.1.02
Page 1071 of 1538
Jul 17, 2014
V850E2/PG4-L
Section 20 CAN Controller (FCN)
(2)
FCNnCMCLCTL - FCNn Module Control Register
This register is used to control operating mode of the FCN module.
Access
This register can be read/written in 16-bit units.
Address
<FCNn_base> + 0 8240
H
Initial value
0000
H
This register is initialized by various types of reset.
(a)
FCNnCMCLCTL Read
Note 1.
FCNnCMCLSSRS is set to 1 under the following conditions (timing).
•
The SOF bit of a receive frame is detected
•
On occurrence of arbitration loss during a transmit frame
Note 2.
FCNnCMCLSSRS is cleared to 0 under the following conditions (timing).
•
When a recessive level is detected at the second bit of the inter-frame
space
•
On transition to initialization mode at the first bit of the inter-frame
space
Note 1.
FCNnCMCLSSTS is set to 1 under the following condition (timing).
•
The SOF bit of a transmit frame is detected
Note 2.
FCNnCMCLSSTS is cleared to 0 under the following conditions (timing).
•
During transition to bus-off state
•
On occurrence of arbitration loss in transmit frame
•
On detection of recessive level at the second bit of the inter-frame
space
•
On transition to initialization mode at the first bit of the inter-frame
space
15
14
13
12
11
10
9
8
0
0
0
0
0
0
FCNnCM
CLSSRS
FCNnCM
CLSSTS
7
6
5
4
3
2
1
0
FCNnCM
CLERCF
FCNnCM
CLALBF
FCNnCM
CLVALF
FCNnCM
CLMDPF[1:0]
FCNnCM
CLMDOF[2:0]
FCNnCMCLSSRS
Reception Status
0
Reception is stopped.
1
Reception is in progress.
FCNnCMCLSSTS
Transmission Status
0
Transmission is stopped.
1
Transmission is in progress.