UPDI

Figure 1. UPDI Enable Sequence
Table 1. UPDI Timing Specifications
Symbol Description Min. Max. Unit  
tRES * Duration of Handshake/Break on RESET 10 200 µs  
tUPDI * Duration of UPDI.txd = 0 10 200 µs  
tDeb0 * Duration of Debugger.txd = 0 0.2 1 µs  
tDebZ * Duration of Debugger.txd = z 200 14000 µs  
fUPDI * UPDI baud rate 1.8 Mbps 0ºC ≤ TA ≤ +50ºC
0.9 Mbps TA < 0ºC or TA > +50ºC

* These parameters are characterized but not tested in production.