Erik states:
"That is not "synchronization", that is emulating."

Richard replies,
Well, then these things we use are not microcomputers, they're emulators. I always thought an emulator was a device external to the target system that emulated the performance of the target device. I guess I'm wrong ...
You are. An emulator typically uses a bondout version of the identical, very same chip that it emulates.

Erik states:
"...Ceibo can go to 33MHz."

and I wonder,
Does it execute one instruction per clock tick at that rate?
Feel free to ask them http://www.ceibo.com/, as I said "I do not use Dallas chips"

Eric states:
"...No simulator will ever be "true"."

to which I reply,
There's nothing to prevent it.
True, but how will you "simulate" things like exact UART timing with Gatesian software involved.

about complaining to KEIL
The case is that if the first that find a problem does not "complain" the next will find it and the next.... I consider it an obligation to make suppliers aware of their problems for the benefit of my fellow developer.

I doubt their support of the Maxim/Dallas parts is adequate if they don't fully support the page mode accesses to external memory. They've had long enough to make this work if they're going to. I suspect they'll skip that step.
I gather that the Dallas thingies are addressing somewhat similar to the Philips MX and 669 series (linear 23 bit addresses). This addressing is supported by the AX, CX and LX products.

Erik