Datasheet

39.8.39 Tx Buffer Add Request
Name: TXBAR
Offset: 0xD0
Reset: 0x00000000
Property: -
Note: If an add request is applied for a Tx Buffer with pending transmission request (corresponding
TXBRP bit is already set), this add request is ignored.
Bit 31 30 29 28 27 26 25 24
ARn[31:24]
Access
R/W R/W R/W R/W R/W R/W R/W R/W
Reset 0 0 0 0 0 0 0 0
Bit 23 22 21 20 19 18 17 16
ARn[23:16]
Access
R/W R/W R/W R/W R/W R/W R/W R/W
Reset 0 0 0 0 0 0 0 0
Bit 15 14 13 12 11 10 9 8
ARn[15:8]
Access
R/W R/W R/W R/W R/W R/W R/W R/W
Reset 0 0 0 0 0 0 0 0
Bit 7 6 5 4 3 2 1 0
ARn[7:0]
Access
R/W R/W R/W R/W R/W R/W R/W R/W
Reset 0 0 0 0 0 0 0 0
Bits 31:0 – ARn[31:0] Add Request
Each Tx Buffer has its own Add Request bit.
Writing a ‘1’ will set the corresponding Add Request bit; writing a ‘0’ has no impact. This enables the Host
to set transmission requests for multiple Tx Buffers with one write to TXBAR. TXBAR bits are set only for
those Tx Buffers configured via TXBC. When no Tx scan is running, the bits are reset immediately, else
the bits remain set until the Tx scan process has completed.
SAM D5x/E5x Family Data Sheet
CAN - Control Area Network
© 2019 Microchip Technology Inc.
Datasheet
DS60001507E-page 1293