Datasheet

Table Of Contents
0 : Transmitting node is error active.
1 : Transmitting node is error passive.
R0 Bit 30 - XTD: Extended Identifier
Signals to the Host whether the received frame has a standard or extended identifier.
0 : 11-bit standard identifier.
1 : 29-bit extended identifier.
R0 Bit 29 - RTR: Remote Transmission Request
Signals to the Host whether the received frame is a data frame or a remote frame.
0 : Received frame is a data frame.
1 : Received frame is a remote frame.
Note:  There are no remote frames in CAN FD format. In case a CAN FD frame was received (EDL
= ‘1’), bit RTR reflects the state of the reserved bit r1.
R0 Bits 28:0 - ID[28:0]: Identifier
Standard or extended identifier depending on bit XTD. A standard identifier is stored into ID[28:18].
R1 Bit 31 - ANMF: Accepted Non-matching Frame
Acceptance of non-matching frames may be enabled via GFC.ANFS and GFC.ANFE.
0 : Received frame matching filter index FIDX.
1 : Received frame did not match any Rx filter element.
R1 Bits 30:24 - FIDX[6:0]: Filter Index
0-127 : Index of matching Rx acceptance filter element (invalid if ANMF = ‘1’).
Note:  Range is 0 to SIDFC.LSS-1 for standard and 0 to XIDFC.LSE-1 for extended.
R1 Bits 23:22 - Reserved
R1 Bit 21 - FDF: FD Format
0 : Standard frame format.
1 : CAN FD frame format (new DLC-coding and CRC).
R1 Bit 20 - BRS: Bit Rate Search
0 : Frame received without bit rate switching.
1 : Frame received with bit rate switching.
R1 Bits 19:16 - DLC[3:0]: Data Length Code
0-8 : CAN + CAN FD: received frame has 0-8 data bytes.
9-15 : CAN: received frame has 8 data bytes.
9-15 : CAN FD: received frame has 12/16/20/24/32/48/64 data bytes.
R1 Bits 15:0 - RXTS[15:0]: Rx Timestamp
Timestamp Counter value captured on start of frame reception. Resolution depending on
configuration of the Timestamp Counter Prescaler TSCC.TCP.
SAM D5x/E5x Family Data Sheet
CAN - Control Area Network
© 2019 Microchip Technology Inc.
Datasheet
DS60001507E-page 1303