CACHE+! explanation

Some people have questions about the cache-32K. They say it doesn’t work.
I upload the corrected diagram. If this doesn’t work, there is an error in the installation.

Port #CFF7.
I don’t know about anyone, but after the appearance of a similar scheme from ARC, I will now
be sure to block this port on my computer! And it will be turned on
constantly.
And once again:
Not setting a RESET on this port is not the best idea. In this case, although there is no
need to write the required value into it at each restart, other problems
appear:
1. what to do if some bad programmer got into it without permission and
wrote in what he wanted?
2. what to do if a failure occurred as a result of a powerful impulse noise?
- and there was important information in the RAM!

At one time I throw in the clock circuit, also corrected.

All the best.
Sincerely Roman.