[Coco] Schematic for external PIA, cart protoboard.

[Gene Heskett]

On Saturday, February 07, 2015 02:51:43 PM Nick Marentes wrote:
> On 8/02/2015 5:30 AM, Gene Heskett wrote:
> > That looks pretty useful, I assume the end connection and the side port
> > are paralleled?  But does it fit in an MPI?
> > 
> > 
> > Cheers, Gene Heskett
> 
> The PIA has 2 x 8 bit bi-directional ports so I assume that's why there
> are 2 connectors.
> 
> Nick

I sorta traced the pdb runners, and it looks to me like both 8 bit ports in 
the 6821 are accessible from both connectors.  The probably 26 pin dual row 
IDC on the side, and the end connetor would have enough available pins to 
allow that.

Cheers, Gene Heskett
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