Datasheet

Bit 14 – PXE Protocol Exception Event
This field is cleared on read access.
Value Description
0
No protocol exception event occurred since last read access.
1
Protocol exception event occurred.
Bit 13 – RFDF Received a CAN FD Message
This field is cleared on read access.
Value Description
0
Since this bit was reset by the CPU, no CAN FD message has been received.
1
Message in CAN FD format with FDF flag set has been received. This bit is set independent
of acceptance filtering.
Bit 12 – RBRS BRS flag of last received CAN FD Message
This field is cleared on read access.
Value Description
0
Last received CAN FD message did not have its BRS flag set.
1
Last received CAN FD message had its BRS flag set. This bit is set together with RFDF,
independent of acceptance filtering.
Bit 11 – RESI ESI flag of last received CAN FD Message
This field is cleared on read access.
Value Description
0
Last received CAN FD message did not have its ESI flag set.
1
Last received CAN FD message had its ESI flag set.
Bits 10:8 – DLEC[2:0] Data Last Error Code
Type of last error that occurred in the data phase of a CAN FD format frame with its BRS flag set. Coding
is the same as for LEC. This field will be cleared to zero when a CAN FD format frame with its BRS flag
set has been transferred (reception or transmission) without error.
Bit 7 – BO Bus_Off Status
Value Description
0
The CAN is not Bus_Off.
1
The CAN is in Bus_Off state.
Bit 6 – EW Error Warning Status
Value Description
0
Both error counters are below the Error_Warning limit of 96.
1
At least one of the error counter has reached the Error_Warning limit of 96.
Bit 5 – EP Error Passive
Value Description
0
The CAN is in the Error_Active state. It normally takes part in bus communication and sends
an active error flag when an error has been detected.
1
The CAN is in the Error_Passive state.
Bits 4:3 – ACT[1:0] Activity
Monitors the module’s CAN communication state.
SAM D5x/E5x Family Data Sheet
CAN - Control Area Network
© 2019 Microchip Technology Inc.
Datasheet
DS60001507E-page 1251