Home▸ Forums▸ 68kMLA▸ Designing a portable RAM card — #63
Post #63 by techknight
Source Forum68kMLA
CategoryHardware
Post DateSat, 18 Oct 2014 - 00:39
Original URLhttps://68kmla.org/bb/threads/designing-a-portable-ram-card.314/
Post
the portable is an oddball. All RAM is mapped up until you run into ROM. Rom doesnt begin at 40 0000 as on the SE/Plus,etc. it begins at A0 0000 or 90 0000. Something like that. 

Why would I use an i8042? thats a keyboard controller. 

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