Global Filter Configuration
This register is write-restricted and only writable if bit fields CCCR.CCE = 1 and CCCR.INIT = 1.
Name:
GFC
Offset:
0x80
Reset:
0x00000000
Access:
Write-restricted
Bit3130292827262524
Access
Reset
Bit2322212019181716
Access
Reset
Bit15141312111098
Access
Reset
Bit76543210
ANFS[1:0]ANFE[1:0]RRFSRRFE
AccessR/WR/WR/WR/WR/WR/W
Reset000000

Bits 5:4 – ANFS[1:0]: Accept Non-matching Frames Standard

Accept Non-matching Frames Standard

Defines how received messages with 11-bit IDs that do not match any element of the filter list are treated.
ValueNameDescription
0x0 RXF0 Accept in Rx FIFO 0.
0x1 RXF1 Accept in Rx FIFO 1.
0x2 or 0x3 REJECT Reject

Bits 3:2 – ANFE[1:0]: Accept Non-matching Frames Extended

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.
ValueNameDescription
0x0 RXF0 Accept in Rx FIFO 0.
0x1 RXF1 Accept in Rx FIFO 1.
0x2 or 0x3 REJECT Reject

Bit 1 – RRFS: Reject Remote Frames Standard

Reject Remote Frames Standard

ValueDescription
0 Filter remote frames with 11-bit standard IDs.
1 Reject all remote frames with 11-bit standard IDs.

Bit 0 – RRFE: Reject Remote Frames Extended

Reject Remote Frames Extended

ValueDescription
0 Filter remote frames with 29-bit extended IDs.
1 Reject all remote frames with 29-bit extended IDS.