66.6.11 MCAN Error Counter Register
When MCAN_CCCR.ASM is set, the CAN protocol controller does not increment TEC and REC when a CAN protocol error is detected, but CEL is still incremented.
| Name: | MCAN_ECR |
| Offset: | 0x40 |
| Reset: | 0x00000000 |
| Property: | Read-only |
| Bit | 31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | |
| Access | |||||||||
| Reset |
| Bit | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 | |
| CEL[7:0] | |||||||||
| Access | R | R | R | R | R | R | R | R | |
| Reset | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
| Bit | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | |
| RP | REC[6:0] | ||||||||
| Access | R | R | R | R | R | R | R | R | |
| Reset | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
| Bit | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | |
| TEC[7:0] | |||||||||
| Access | R | R | R | R | R | R | R | R | |
| Reset | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
Bits 23:16 – CEL[7:0] CAN Error Logging (cleared on read)
The counter is incremented each time when a CAN protocol error causes the Transmit Error Counter or the Receive Error Counter to be incremented. It is reset by read access to CEL. The counter stops at 0xFF; the next increment of TEC or REC sets interrupt flag IR.ELO.
Bit 15 – RP Receive Error Passive
| Value | Description |
|---|---|
| 0 | The Receive Error Counter is below the error passive level of 128. |
| 1 | The Receive Error Counter has reached the error passive level of 128. |
Bits 14:8 – REC[6:0] Receive Error Counter
Actual state of the Receive Error Counter, values between 0 and 127.
Bits 7:0 – TEC[7:0] Transmit Error Counter
Actual state of the Transmit Error Counter, values between 0 and 255.