| Attachment | Size |
|---|---|
 CCS 7114A Front.jpeg | 3.6 MB |
| CCS 7114A Back.jpeg | 3.78 MB |
I wanted a ROM card to round out the toolset and picked this up on ebay. Arrived today and I realized it was more than a clone of the apple integer rom card. More chips. Looking at it, I <think> you can install diodes on the pads on the lower left to selectively enable specific ROM chips.
Anyone got documentaion on this? I looked on Apple2.org and they had a front photo but nothing else.
Also, any idea why they differentiate between PROM and ROM in the silkscreen (above the pads - lower left)
Cheers
Pete
Possibly because the 2316 mask ROMs use enable pins that are inverted relative to those on 2716 EPROMs?
That makes a lot of sense. Thanks.
This is a really cool card.
And from the condition of the diode pads it looks like it has never been used...