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Applies to: PL011 UART
There is no practical limit to the baud rate that can be achieved in the UART PL011 providing you can supply a UARTCLK at the right frequency. Also, you may run UARTCLK at a slower frequency than PCLK if required.
The maximum baud rate is primarily determined by UARTCLK/16. The figure mentioned in the TRM of 460.8Kbits/s is derived from a UARTCLK of 7.3728MHz and was written when this was a reasonable clock rate.
Article last edited on: 2008-09-09 15:47:49
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