35.11 USART

Figure 35-3. USART in SPI Mode - Timing Requirements in Master Mode
Table 35-17. USART in SPI Master Mode - Timing Characteristics
SymbolDescriptionConditionMin.Typ.Max.Unit
fSCKSCK clock frequencyMaster--10MHz
tSCKSCK periodMaster100--ns
tSCKWSCK high/low widthMaster-0.5×tSCK-ns
tSCKRSCK rise timeMaster-2.7-ns
tSCKFSCK fall timeMaster-2.7-ns
tMISMISO setup to SCKMaster-10-ns
tMIHMISO hold after SCKMaster-10-ns
tMOSMOSI setup to SCKMaster-0.5×tSCK-ns
tMOHMOSI hold after SCKMaster-1.0-ns