66.6.35 MCAN Tx Buffer Element Size Configuration
This register can only be written if the bits CCE and INIT are set in MCAN CC Control Register.
Configures the number of data bytes belonging to a Tx Buffer element. Data field sizes > 8 bytes are intended for CAN FD operation only.
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 MCAN_TXESC.TBDS, the bytes not defined by the Tx Buffer are transmitted as “0xCC” (padding bytes).
| Name: | MCAN_TXESC |
| Offset: | 0xC8 |
| Reset: | 0x00000000 |
| Property: | Read/Write |
| 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
| Value | Name | Description |
|---|---|---|
| 0 | 8_BYTE | 8-byte data field |
| 1 | 12_BYTE | 12-byte data field |
| 2 | 16_BYTE | 16-byte data field |
| 3 | 20_BYTE | 20-byte data field |
| 4 | 24_BYTE | 24-byte data field |
| 5 | 32_BYTE | 32-byte data field |
| 6 | 48_BYTE | 48- byte data field |
| 7 | 64_BYTE | 64-byte data field |