LE>> 16650 = 64-byte (32 bytes + framing) FIFOs. Available from
LE>> Startech. Local distributors are "Logic For Australasia".
PL> There was some talk of compatibility problems with the early ones, but how 
PL> are they now? 
That was the 16550s. The early Startech 16550 had some weird FIFOing bug
which made it incompatible with the NS16550AFN, then "the" chip.
Was fixed in late '94 from memory. The 16650 has no product equivalent that
I know of from NS et al, though I could be wrong there as I don't follow
those particular semiconductors.

PL> Are the 64byte FIFO transparently available to those merely 
PL> expecting a '550?

Nope, unless the driver/program allows you to specify Rx/Tx FIFO trigger
levels and has no range checking on the numbers you give it.

-- Lewin A.R.W. Edwards [Team OS/2]  Tel 0419320415 * 0412809805 * 0414927056
@EOT:

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