Does anyone have a good methodology for keeping things separate with 2 '51s having p0/p1/p2 tied together, thus handshaking to gain access to the xram. To gain more individual ram, I plan to use chips with a k of "internal xram". I would like to know if anyone has a good method for keeping things straight in such an environment. Erik Malund
If you do not need much shared RAM and/or cost is not a vital consideration, you should consider using dual-port RAM. Dual-port RAM will make things much easier.
would have used dual-port, if I had been involved before 1000's were built. Need to take care of problems using existing HW