Datasheet

49.6.39 MCAN Transmit Buffer Add Request
Name: MCAN_TXBAR
Offset: 0xD0
Reset: 0x00000000
Property: Read/Write
If an add request is applied for a Transmit Buffer with pending transmission request (corresponding MCAN_TXBRP
bit already set), this Add Request is ignored.
Bit 31 30 29 28 27 26 25 24
AR31 AR30 AR29 AR28 AR27 AR26 AR25 AR24
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
AR23 AR22 AR21 AR20 AR19 AR18 AR17 AR16
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
AR15 AR14 AR13 AR12 AR11 AR10 AR9 AR8
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
AR7 AR6 AR5 AR4 AR3 AR2 AR1 AR0
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 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31 –
ARx Add Request for T
ransmit Buffer x
Each Transmit 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 processor to set transmission requests for multiple Transmit Buffers with one write
to MCAN_TXBAR. MCAN_TXBAR bits are set only for those Transmit Buffers configured via TXBC. When no
Transmit scan is running, the bits are reset immediately, else the bits remain set until the Transmit scan process has
completed.
Value Description
0
No transmission request added.
1
Transmission requested added.
SAM E70/S70/V70/V71 Family
Controller Area Network (MCAN)
© 2019 Microchip T
echnology Inc.
Datasheet
DS60001527D-page 1482