37.12 USART

Figure 37-3. USART in SPI Mode - Timing Requirements in Master Mode
Table 37-19. USART in SPI Master Mode - Timing Characteristics
Symbol Description Condition Min. Typ. Max. Unit
fSCK SCK clock frequency Master - - 10 MHz
tSCK SCK period Master 100 - - ns
tSCKW SCK high/low width Master - 0.5×tSCK - ns
tSCKR SCK rise time Master - 2.7 - ns
tSCKF SCK fall time Master - 2.7 - ns
tMIS MISO setup to SCK Master - 10 - ns
tMIH MISO hold after SCK Master - 10 - ns
tMOS MOSI setup to SCK Master - 0.5×tSCK - ns
tMOH MOSI hold after SCK Master - 1.0 - ns