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User's Manual
24K MEMORY MASTER (tm)
INTRODUCTION
The Thinke r Toys 24K Memory Master (tm) is our second entry
into the field of bank select S-100 memory products. Us ing the
popul'ar 5257 4K x 1 static RAM memory chip with an access time
which allows us to guarantee operation with 4MHz Z-80 systems and
5MHz 8085 systems, the 24K Memory Master is compatable with most
popular S-100 bank select software. This versatile be>ard can be
switched to become selected or deselected in response to any bit
ofa.ny I/O port; to come up active or inactive on power-up; and
to honor or ignore the PHANTOM bus signal. Once selected, the
unit is configured as three independently addressable and write
protectable 8K blocks, with addressing allowed at the beginning
of any8K boundary.
Of course, the 24K Memory Master also offers the reliability
and economy that come wit.h all Morrow Designs (tm), as well as
serv ice that is unmatched in the industry-- it's another Th inker
Toys product you can bank on.
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