>I need a small microcontroller to do some simple manipulation of data on
>two serial ports.  The bit rates (57,600bps and 19,200bps) rule out bit
>banging, so two hardware UARTs are pretty essential.  Development of the
>code looks straightforward on any architecture given half-decent tools.

How about a PIC with an I2C or SSP Uart from maxim or elsewhere? You don't
mention how much RAM you expect to need for buffering/processing though.

Appreciate this does not really answer your query, just an alternative train
of thought.

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