I really don't care whether it is internal or external but what I'm trying to understand is since the MSC1210Y5 has an *on-chip* 1K external RAM (this is on top of the 256 internal RAM) and I'm adding an *off-chip* external RAM for more memory, when I'm accessing the on-chip external RAM I see control and bus lines active externally off the chip. And since my off-chip external RAM is tied to the same control and bus lines (thru P0&P2), is the chip actually accessing two separate locations with the same address?

-John G-