Status B

  0x01 8 - 0x00    

Status B

Bit  7 6 5 4 3 2 1 0  
Access            R R R  
Reset            0 0 0  

Bits 2:0 – PESIG[2:0]: UPDI Error Signature

UPDI Error Signature

This bit field describes the UPDI error signature and is set when an internal UPDI Error condition occurs. The PESIG bit field is cleared on a read from the debugger.

Table 1. Valid Error Signatures
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 the Stop bits
0x3 Access Layer Time-Out Error UPDI can get no data or response from the Access layer
0x4 Clock Recovery error Wrong sampling of the Start bit
0x5 - Reserved
0x6 Bus error Address error or access privilege error
0x7 Contention error Signalize Driving Contention on the UPDI pin