[Coco] 6551 at 115200 bps

[Mike Pepe]

Roger- a crystal is a passive device that needs a circuit in order to
generate a signal. An oscillator (in the Jameco sense) is a device that
contains said circuit and crystal in one package.

> -----Original Message-----
> From: coco-bounces at maltedmedia.com [mailto:coco-
> bounces at maltedmedia.com] On Behalf Of Roger Taylor
> Sent: Sunday, January 18, 2009 6:41 PM
> To: CoCoList for Color Computer Enthusiasts
> Subject: Re: [Coco] 6551 at 115200 bps
> 
> At 08:35 PM 1/18/2009, you wrote:
> >The TxC and RxC pins (5 & 12) are independent of the crystal
> oscillator
> >and internal baud rate generator.
> >
> >The way to accomplish my original design would be to use an external
> >1.8432MHz oscillator and feed it to TxC, RxC, and the XTAL1 pin. It's
> a
> >pretty simple mod. Actually I may just have to try this one out
myself
> >and see if it works like the datasheet says it should.
> 
> 
> 
> The datasheet says that either TxC or RxC should be left unconnected,
> can't recall which one.  I already closed the PDF and have a mess of
> a desktop right now.
> I am not sure what the difference is in a Crystal Oscillator, an
> Oscillator, or a Crystal in these hacks/descriptions since people
> slang the terms around so much.  Jameco clearly sells both Crystals
> and Oscillators both in 1.8432 mhz and 3.6864 mhz.  Whether a cyrstal
> actually oscillates or an oscillator behaves like a crystal, I
> ordered the "crystals" which look identical to the "oscillators".  :)
> 
> 
> 
> 
> 
> 
> --
> Roger Taylor
> 
> http://www.wordofthedayonline.com
> 
> 
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