15.4.3 CAN Data Bit Time Configuration Register(1), (2)
Note:
- The individual bytes in this
multibyte register can be accessed with the following register names:
- CxDBTCFGT: Accesses the top byte DBTCFG[31:24].
- CxDBTCFGU: Accesses the upper byte DBTCFG[23:16].
- CxDBTCFG: Accesses the byte DBTCFG[31:0].
- This register can only be
modified in Configuration mode (OPMOD[2:0] =
100).
| Name: | CxDBTCFG |
| Offset: | 0x2608, 0x28F8 |
| Bit | 31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | |
| BRP[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 | |
| Bit | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 | |
| TSEG1[4:0] | |||||||||
| Access | R/W | R/W | R/W | R/W | R/W | ||||
| Reset | 0 | 1 | 1 | 1 | 0 | ||||
| Bit | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | |
| TSEG2[3:0] | |||||||||
| Access | R/W | R/W | R/W | R/W | |||||
| Reset | 0 | 0 | 1 | 1 | |||||
| Bit | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | |
| SJW[3:0] | |||||||||
| Access | R/W | R/W | R/W | R/W | |||||
| Reset | 0 | 0 | 1 | 1 | |||||
Bits 31:24 – BRP[7:0] Data Baud Rate Prescaler bits
| Value | Description |
|---|---|
| 11111111 | TQ=TCY/256 |
| 00000000 | TQ=TCY/1 |
Bits 20:16 – TSEG1[4:0] Data Time Segment 1 bits (Propagation Segment+Phase Segment 1)
| Value | Description |
|---|---|
| 11111 | Length is 32 x TQ |
| 00000 | Length is 1 x TQ |
Bits 11:8 – TSEG2[3:0] Data Time Segment 2 bits (Phase Segment 2)
| Value | Description |
|---|---|
| 1111 | Length is 16 x TQ |
| 0000 | Length is 1 x TQ |
Bits 3:0 – SJW[3:0] Data Synchronization Jump Width bits
| Value | Description |
|---|---|
| 1111 | Length is 16 x TQ |
| 0000 | Length is 1 x TQ |