In Synchronous mode (US_MR.SYNC = 1), the receiver samples the RXD signal on each rising edge of the baud rate clock. If a low level is detected, it is considered as a start. All data bits, the parity bit and the stop bits are sampled and the receiver waits for the next start bit. Synchronous mode operations provide a high-speed transfer capability.
Configuration fields and bits are the same as in Asynchronous mode.
The following figure illustrates a character reception in Synchronous mode.
Figure 1. Synchronous Mode Character Reception
