CHAPTER 11 FCAN CONTROLLER
564
User’s Manual U14492EJ3V0UD
(9) CAN status set/clear registers 00 to 31 (SC_STAT00 to SC_STAT31)
The SC_STATn register is used to set/clear the transmit/receive status information (n = 00 to 31).
These registers are write-only in 16-bit units.
14
0
13
0
12
0
2
clear
DN
3
0
4
0
5
0
6
0
7
0
8
set
RDY
9
set
TRQ
10
set
DN
11
0
15
0
1
clear
TRQ
0
clear
RDY
SC_STATn
(n = 00 to 31)
Address
See
Table 11-22
Initial value
0000H
Bit Position
Bit Name
Function
Specifies setting/clearing of the message update flag.
set DN
clear DN
Operation
0
1
Cleared (DN bit cleared)
1
0
Set (DN bit set)
Other than above
No change in DN bit value
10, 2
set DN,
clear DN
Specifies setting/clearing of the transmit request flag.
set TRQ
clear TRQ
Operation
0
1
Cleared (TRQ bit cleared)
1
0
Set (TRQ bit set)
Other than above
No change in TRQ bit value
9, 1
set TRQ,
clear TRQ
Specifies setting of the message ready flag.
set RDY
clear RDY
Operation
0
1
Cleared (RDY bit cleared)
1
0
Set (RDY bit set)
Other than above
No change in RDY bit value
8, 0
set RDY,
clear RDY
Remark
DN:
Bit 2 of CAN message status register n (M_STATn)
TRQ: Bit 1 of CAN message status register n (M_STATn)
RDY: Bit 0 of CAN message status register n (M_STATn)
Содержание V850E/IA1 mPD703116
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