ebay seller computermkt

Chuck Guzis cclist at sydex.com
Thu Dec 28 18:16:07 CST 2006


On 28 Dec 2006 at 17:04, Jim Leonard wrote:

> Chuck Guzis wrote:
> > They're all pin-compatible.  The 16450 supports higher line speeds; 
> > the 16550 has the 16-byte FIFO.
> 
> How much higher line speeds?  Higher than 115200?

Argh!  Both "bus" and "line".  The 16450A is capable of 500K, using 
an 8 MHz baud clock.  I don't think the original 8250 could go that 
high.  Bus timing is faster too.

Finding an original 8250(A) datasheet is a little daunting, however.  
NS has lumped the 16450 and 8250 as one part now.

Even more interesting is the list of "personality" bugs between the 
various NS parts and competing vendors.

Cheers,
Chuck




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