Status B
| Bit7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
| PESIG[2:0] | |||||||
| AccessR | R | R | R | R | R | R | R |
| Reset0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
UPDI Error Signature
These bits describe the UPDI Error Signature, and is set when an internal UPDI error condition occurs. The PESIG field is cleared on a read from the debugger.
| PESIG[2:0] | Error Type | Error Description |
|---|---|---|
| 0x0 | No error | No error detected (Default) |
| 0x1 | Parity error | Wrong sampling of the parity bit |
| 0x2 | Frame error | Wrong Sampling of frame stop bits |
| 0x3 | Access Layer Timeout Error | UPDI can get no data or response from the Access layer. Examples of error cases are system domain in sleep or system domain reset. |
| 0x4 | Clock recovery error | Wrong sampling of frame start bit |
| 0x5 | - | Reserved |
| 0x6 | Reserved | Reserved |
| 0x7 | Contention error | Signalize Driving Contention on the UPDI RXD/TXD line. |