3.10.10.6.1 DWDR – debugWIRE Data Register

Name: DWDR
Offset: 0x031
Reset: 0x00

Bit 76543210 
 DWDR[7:0] 
Access R/WR/WR/WR/WR/WR/WR/WR/W 
Reset 00000000 

Bits 7:0 – DWDR[7:0] debugWIRE Data Register

The DWDR register provides a communication channel from the running program in the MCU to the debugger. This register is only accessible by the debugWIRE and can, therefore, not be used as a general purpose register in normal operation.