Datasheet

39.8.37 Tx Buffer Element Size Configuration
Name: TXESC
Offset: 0xC8
Reset: 0x00000000
Property: Write-restricted
This register is write-restricted and only writable if bit fields CCCR.CCE = 1 and CCCR.INIT = 1.
Configures the number of data bytes belonging to a Tx Buffer element. Data field sizes >8 bytes are
intended for CAN FD operation only.
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
TBDS[2:0]
Access
R/W R/W R/W
Reset 0 0 0
Bits 2:0 – TBDS[2:0] Tx Buffer Data Field Size
In case the data length code DLC of a Tx Buffer element is configured to a value higher than the Tx
Buffer data field size TXESC.TBDS, the bytes not defined by the Tx Buffer are transmitted as “0xCC”
(padding bytes).
Value Name Description
0x0
DATA8 8 byte data field.
0x1
DATA12 12 byte data field.
0x2
DATA16 16 byte data field.
0x3
DATA20 20 byte data field.
0x4
DATA24 24 byte data field.
0x5
DATA32 32 byte data field.
0x6
DATA48 48 byte data field.
0x7
DATA64 64 byte data field.
SAM D5x/E5x Family Data Sheet
CAN - Control Area Network
© 2019 Microchip Technology Inc.
Datasheet
DS60001507E-page 1290