At 21:17/06/Mar, BUD JAMISON (1:202/746) said:
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->> They also have one big disadvantage: the parallel port does not carry
->> meaning that it will generate up to sixteen times more interrupts at
->> a given data rate when compared to a serial modem on a 16550.
BJ> With a parallel port taking in a whole byte at a time, it would do 1/8th
BJ> as many interrupt requests as a serial port (except for the FIFO buffer
BJ> being used and set to max, which often causes problems, and then it
BJ> would be 2 for one).
Nope.  A UART generates an interrupt when it has a whole byte ready.  It 
doesn't generate an interrupt for each bit received.
Rick
--- Msged 4.00
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