25.1.2 FLEXCOM USART Timings update
The following table supersedes the “FLEXCOM USART Timings” table in the Electrical Characteristics section of the data sheet. This new table allows for greater USART speeds in Asynchronous mode.
| Symbol | Parameter | Conditions | Min | Max | Unit |
|---|---|---|---|---|---|
| fSCK |
SCK frequency in Synchronous mode (FLEX_US_MR.SYNC = 1) | Host or client | – | 25 | MHz |
| BR |
Baud rate in Asynchronous mode(1) (FLEX_US_MR.SYNC = 0) | FLEX_US_MR.OVER = 1 | – | fMCK1 / 8 | Mbps |
| FLEX_US_MR.OVER = 0 | – | fMCK1 / 16 |
Note:
- With fMCK1 = 200 MHz,
the maximum baud rate is:
BR = 200 / 8 = 25 Mbps (OVER = 1), or
BR = 200 / 16 = 12.5 Mbps (OVER = 0)