37.2 Tx Event FIFO Element 1
| Symbol | Description | Symbol | Description | Symbol | Description |
|---|---|---|---|---|---|
| R | Readable bit | HC | Cleared by Hardware | (Grey cell) | Unimplemented |
| W | Writable bit | HS | Set by Hardware | X | Bit is unknown at Reset |
| K | Write to clear | S | Software settable bit | — | — |
| Name: | E1 |
| Offset: | 0x004 |
| Reset: | 0x00000000 |
| Property: | RW |
| Bit | 31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | |
| MM[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 | |
| ET[1:0] | FDF | BRS | DLC[3:0] | ||||||
| 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 | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | |
| TXTS[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 | |
| TXTS[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 31:24 – MM[7:0] Message Marker
Copied from Tx Buffer into Tx Event FIFO element for identification of Tx message status
Bits 23:22 – ET[1:0] Event Type
This field defines the event type
| Value | Name | Description |
|---|---|---|
| 0x0 or 0x3 | RES |
Reserved |
| 0x1 | TXE |
Tx event |
| 0x2 | TXC |
Transmission in spite of cancellation (always set for transmission in DAR mode) |
Bit 21 – FDF FD Format
| Value | Description |
|---|---|
| 0 |
Standard frame format. |
| 1 |
CAN FD frame format (new DLC-coding and CRC). |
Bit 20 – BRS Bit Rate Search
| Value | Description |
|---|---|
| 0 |
Frame received without bit rate switching. |
| 1 |
Frame received with bit rate switching. |
Bits 19:16 – DLC[3:0] Data Length Code
| Value | Description |
|---|---|
| 0-8 |
CAN + CAN FD: received frame has 0-8 data bytes |
| 9-15 |
CAN: received frame has 8 data bytes. |
| 9-15 |
CAN FD: received frame has 12/16/20/24/32/48/64 data bytes |
Bits 15:0 – TXTS[15:0] Tx Timestamp
Timestamp Counter value captured on start of frame transmission. Resolution depending on configuration of the Timestamp Counter Prescaler TSCC.TCP.