35.19 UPDI

Figure 35-7. UPDI Enable Sequence with Dedicated UPDI Pin
Table 35-28. UPDI Timing Specifications
Symbol Description Min. Max. Unit Conditions
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 clock frequency 4 MHz

1.8V ≤ VDD ≤ 5.5V

TA < 0ºC or TA > +50ºC

8

1.8V ≤ VDD ≤ 5.5V

0ºC ≤ TA ≤ +50ºC

8

2.7V ≤ VDD ≤ 5.5V

TA < 0ºC or TA > +50ºC

16

2.7V ≤ VDD ≤ 5.5V

0ºC ≤ TA ≤ +50ºC

16

4.5V ≤ VDD ≤ 5.5V

TA < 0ºC or TA > +50ºC

32

4.5V ≤ VDD ≤ 5.5V

0ºC ≤ TA ≤ +50ºC

* These parameters are characterized but not tested in production.