Radio Shack TRS-80 26-3650

4. RAM (Random
Access
Memory)
HD61914
is
1 K
byte RAM and
contains
self-control
circuits.
The
following
shows
a
memory
map
of RAM 1
and
RAM
2
(optional
RAM pack)
RAMI
System
Memory
User's
Area
RAM 2
000
21F
220
User's
Area
7FF
800
FFF
Note:
The
above addresses
are for
when
one word is
4 bits.
_
6
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