On 20 Jul 96  23:33:48, Meng-Shi Lim wrote to All:



 ML> byte that it receives; even so, I have not experienced any data

 ML> overruns under Win95. Does anyone know what trick is used to overcome

 ML> this? (I believe the Banksia (ala Microcom) PC Card modem uses a

 ML> similar scheme).



They have RAM buffers much bigger than 16 bytes (I've seen the

figure in Rockwell data books but can't remember now). The CPU has

to cope with the same number of interrupts as with ordinary 8250 or

16450 UART, but the advantage is that there is no data loss.



Cheers,

Tom             



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