Home▸ Forums▸ 68kMLA▸ Designing a portable RAM card — #62
Post #62 by NJRoadfan
Source Forum68kMLA
CategoryHardware
Post DateFri, 17 Oct 2014 - 19:42
Original URLhttps://68kmla.org/bb/threads/designing-a-portable-ram-card.314/
Post
You could always use a i8042 to control the A20 line. ;)

Is there any benefit to mapping the full 9MB? Isn't the 68000 limited to addressing 8MB max with the typical Macintosh memory mapping?

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