[Coco] TCP/IP Programming in Commodore BASIC

[Little John]

I noticed two comments left by users on the SparkFun page for this module. 
They state that it is a 3.3V device and will require a 3.3V regulator and 
level translation circuits. THIS IS NOT CORRECT. I looked at the datasheets 
provided by SparkFun and this module should run with 3V to 5V, with 5V 
actually being used in the demo circuits in the datasheet. I do not know 
where those two SparkFun commenters got their info?

----- Original Message ----- 
From: <jdaggett at gate.net>
To: "CoCoList for Color Computer Enthusiasts" <coco at maltedmedia.com>
Sent: Tuesday, November 09, 2010 11:06 AM
Subject: Re: [Coco] TCP/IP Programming in Commodore BASIC


> On 9 Nov 2010 at 9:32, gene heskett wrote:
>
>> I did DL the pdf on it, and while it may be usable, the interface will be
>> a
>> bear, with 5 IRQ lines, and 3 DMARQ/DMAAK pairs, it looks like a lot of
>> external translation support would be needed.  Is this the chip that this
>> networking stack supports?
>
> The Sparkfun module is actually designed by Olimex and in the current form 
> uses only 4
> IRQs and no DMA.
>
> This modlue will require external circuitry to interface directly to the 
> COCO expansion buss.
>
> Needed items are
>
> 1) a priority encoder - rather simple to design and implement
>
> 2) Essentially an ISA bus interface. Already available.
>
> 3) software, software and more software.
>
> james
>
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