33.12 USART

Figure 33-5. USART in SPI Mode - Timing Requirements in Host Mode
Table 33-17. USART in SPI Host Mode - Timing Characteristics(1)
SymbolDescriptionConditionMin.Typ.Max.Unit
fSCKSCK clock frequencyHost--10MHz
tSCKSCK periodHost100--ns
tSCKWSCK high/low widthHost-0.5 × tSCK-ns
tSCKRSCK rise timeHost-2.7-ns
tSCKFSCK fall timeHost-2.7-ns
tMISMISO setup to SCKHost-10-ns
tMIHMISO hold after SCKHost-10-ns
tMOSMOSI setup to SCKHost-0.5 × tSCK-ns
tMOHMOSI hold after SCKHost-1.0-ns
Note:
  1. These parameters are for design guidance only and are not production tested.