CHAPTER 11 FCAN CONTROLLER
594
User’s Manual U14492EJ3V0UD
(25) CAN1 bus active register (C1BA)
The C1BA register indicates frame information output via the CAN bus.
This register is read-only in 16-bit units.
14
0
13
0
12
CACT4
2
TMNO2
3
TMNO3
4
TMNO4
5
TMNO5
6
TMNO6
7
TMNO7
8
CACT0
9
CACT1
10
CACT2
11
CACT3
15
0
1
TMNO1
0
TMNO0
C1BA
Address
xxxxmC5AH
Note
Initial value
00FFH
Note
xxxx: CAN message buffer registers can be allocated to the xxxx addresses as programmable
peripheral I/O registers. Note, however, that the xxxx addresses cannot be changed after being
set.
m = 2, 6, A, E
Bit Position
Bit Name
Function
Indicates CAN module status.
CACT4
CACT3
CACT2
CACT1
CACT0
CAN Module Status
0
0
0
0
0
Reset state
0
0
0
0
1
Bus idle wait
0
0
0
1
0
Bus idle state
0
0
0
1
1
Start of frame
0
0
1
0
0
Standard identifier area
0
0
1
0
1
Data length code area
0
0
1
1
0
Data field area
0
0
1
1
1
CRC field area
0
1
0
0
0
CRC delimiter
0
1
0
0
1
ACK slot
0
1
0
1
0
ACK delimiter
0
1
0
1
1
End of frame area
0
1
1
0
0
Intermission state
0
1
1
0
1
Suspend transmission
0
1
1
1
0
Error frame
0
1
1
1
1
Error delimiter wait
1
0
0
0
0
Error delimiter
1
0
0
1
0
Extended identifier area
12 to 8
CACT4 to
CACT0
7 to 0
TMNO7 to
TMNO0
Specifies transmit message counter.
0 to 31: Message number of message awaiting transmission or being transmitted
32 to 254: Not used
255: No messages awaiting transmission or being transmitted
Содержание V850E/IA1 mPD703116
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