Purely as an experiment, an academic exercise, I'm trying to interface an MC68882 to my 65C265 board (
http://forum.6502.org/viewtopic.php?f=4&t=7866) in "peripheral processor" mode. Unfortunately, I came across a few signals that I'm unfamiliar with:
Address Strobe AS - address is valid
Data Strobe DS - data is valid
As far as I know, we have no equivalents on the 65Cxx's.
Has anyone ever interoperated in a situation requiring these Motorola signals? Is there any way to fake them or cobble them together using the 65C265's available signals? I only came across one post in the archive here, regarding the 68030, but it was exactly the opposite of what I need to do,
i.e., using the signals output by the '030. Here, I need to generate them for input into the 68882.
Any suggestions would be appreciated!
Jonathan