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PBI? What signals are missing?
https://atarimax.com/flashcart/forum/viewtopic.php?f=17&t=1537
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Author:  thewhiz [ Wed Mar 12, 2014 7:02 am ]
Post subject:  PBI? What signals are missing?

I'm just curious about this... If I understand this correctly, there are some critical signals missing from the cartridge port that prevent the MyIDE or other cartridge devices from being "PBI capable." Is that correct, and what are they? Note: I'm not in the least complaining about the MyIDE/MyBios OS. It works very, very well.

-Larry

Author:  flashjazzcat [ Wed Mar 12, 2014 7:16 am ]
Post subject:  Re: PBI? What signals are missing?

Math Pack Disable, A13-15, EXTSEL, CasInh and several other signals necessary for PBI operation. Full list here:

http://www.oocities.org/dr_seppel/pbi1_eng.htm

The beauty of PBI is that no changes to the OS are required, but no cartridge solution can accomplish this without the aid of additional hardware.

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