Altera cyclone V Technical Reference page 3232

25-20
CCTRL
Bit
5
DAR
3
EIE
2
SIE
1
ILE
Altera Corporation
Name
Disable Automatic Retransmission
Value
0x0
0x1
Error Interrupt Enable
Value
0x0
0x1
Status Interrupt Enable
Value
0x0
0x1
Module Interrupt Line Enable
Value
0x0
0x1
Description
Description
Automatic Retransmission of not successful
messages enabled.
Automatic Retransmission disabled.
Description
CSTS.PER, CSTS.BOff and CSTS.EWarn flags
will still be updated, but without affecting
interrupt line CAN_INT_STATUS and
Interrupt register CIR
If CSTS.PER flag is one, or CSTS.BOff or
CSTS.EWarn are changed, the interrupt line
CAN_INT_STATUS gets active (if ILE=1)
and CIR.StatusInt is set.
Description
CSTS.RxOk, CSTS.TxOk and CSTS.LEC will
still be updated, but without affecting
interrupt line CAN_INT_STATUS and
Interrupt register CIR.
When a message transfer is successfully
completed or a CAN bus error is detected,
indicated by flags CSTS.RxOk, CSTS.TxOk
and CSTS.LEC, the interrupt line CAN_INT_
STATUS gets active (if ILE=1) and
CIR.StatusInt is set.
Description
Module Interrupt Line CAN_INT_STATUS
is always LOW.
Error and status interrupts (if CCTRL.EIE=1
and CCTRL.SIE=1) will set line CAN_INT_
STATUS to one, signal remains one until all
pending interrupts are processed. If MIL is
disabled, the message object interrupts will
also affect this interrupt line.
cv_5v4
2016.10.28
Access Reset
RW 0x0
RW 0x0
RW 0x0
RW 0x0
CAN Controller
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