Datasheet

49.6.20 MCAN Global Filter Configuration
Name: MCAN_GFC
Offset: 0x80
Reset: 0x00000000
Property: Read/Write
Global settings for Message ID filtering. The Global Filter Configuration controls the filter path for standard and
extended messages as illustrated in Standard Message ID Filter Path and Extended Message ID Filter Path.
This register can only be written if the bits CCE and INIT are set in MCAN CC Control Register.
Bit 31 30 29 28 27 26 25 24
Access
Reset
Bit 23 22 21 20 19 18 17 16
Access
Reset
Bit 15 14 13 12 11 10 9 8
Access
Reset
Bit 7 6 5 4 3 2 1 0
ANFS[1:0] ANFE[1:0] RRFS RRFE
Access
R/W R/W R/W R/W R/W R/W
Reset 0 0 0 0 0 0
Bits 5:4 – ANFS[1:0] Accept Non-matching Frames Standard
Defines how received messages with 1
1-bit IDs that do not match any element of the filter list are treated.
Value Name Description
0
RX_FIFO_0 Accept in Rx FIFO 0
1
RX_FIFO_1 Accept in Rx FIFO 1
2-3
REJECTED Message rejected
Bits 3:2 – ANFE[1:0] Accept Non-matching Frames Extended
Defines how received messages with 29-bit IDs that do not match any element of the filter list are treated.
Value Name Description
0
RX_FIFO_0 Accept in Rx FIFO 0
1
RX_FIFO_1 Accept in Rx FIFO 1
2-3
REJECTED Message rejected
Bit 1 – RRFS Reject Remote Frames Standard
0 (FIL
TER): Filter remote frames with 11-bit standard IDs.
1 (REJECT): Reject all remote frames with 11-bit standard IDs.
Bit 0 – RRFE Reject Remote Frames Extended
0 (FILTER): Filter remote frames with 29-bit extended IDs.
1 (REJECT): Reject all remote frames with 29-bit extended IDs.
SAM E70/S70/V70/V71 Family
Controller Area Network (MCAN)
© 2019 Microchip T
echnology Inc.
Datasheet
DS60001527D-page 1462