>-> 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.
 > With a parallel port taking in a whole byte at a time,
 > it would do 1/8th
 > as many interrupt requests as a serial port (except
 > for the FIFO buffer
 > being used and set to max, which often causes
 > problems, and then it
 > would be 2 for one).
Huh?  The serial port only interrupts on receiption of complete bytes now.  
There has never *to my knowledge* ever been a UART based serial port that 
generated interrupts for each bit.
Larry
--- RA/Pro 2.50
---------------