[Coco] Back to the COCO

[Dave Philipsen]

Internally there are multiple devices being driven by the address 
lines.   I have seen many implementations of devices all sitting on the 
same unbuffered bus of an 8-bit CPU system (usually in a card cage).

Dave


On 1/4/2017 11:35 AM, Bill Gunshannon wrote:
> On 1/4/17 11:02 AM, Brian Blake wrote:
>> Bill,
>>
>> I'm not sure I've ever seen a buffered 'y' cable before - it would only
>> buffer the device being plugged into the CoCo anyhow. The best solution
>> to protect the CoCo, IMHO, would be to install the Cloud9 Protector -
>> CPU replacement board that has buffering IC's in place already.
>>
>
> Sorry, I guess I wasn't clear enough on that.  I remember a definitely
> unbuffered Y-cable being offered.  Like the unbuffered connectors on the
> Glenside interface I see this as not only a dangerous concept but I
> really don't understand how they even work as I would expect multiple
> devices hanging of that same bus to interfere with each other. but what
> do I know.  :-)
>
> bill
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