33.19 UPDI

Figure 33-9. UPDI Enable Sequence (1)
Table 33-32. UPDI Timing(1)
SymbolDescriptionMin.Max.Unit
TRESDuration of Handshake/Break on RESET10200µs
TUPDIDuration of UPDI.txd = 010200µs
TDeb0Duration of Debugger.txd = 00.21µs
TDebZDuration of Debugger.txd = z20014000µs
Note:
  1. These parameters are for design guidance only and are not covered by production test limits.
Table 33-33. UPDI Max. Bit Rates vs. VDD(1)
SymbolDescriptionConditionMaxUnit
fUPDIUPDI baud rate

VDD = [1.8, 5.5]V
TA = [0, 50]°C

225kbps

VDD = [2.2, 5.5]V
TA = [0, 50]°C

450kbps

VDD = [2.7, 5.5]V
TA = [0, 50]°C

0.9Mbps
Note:
  1. These parameters are for design guidance only and are not covered by production test limits.