Sharp CE-121 - 2-2. RAM

7
Although RAM area is mainly shared by the program , data
and reserve program memories , it is also used for the sub-
routine stack, FOR NEXT statement stack and fixed
memories (W , X , Y , Z) .
1536
1472
1504
001
048
(PC1211)
Reserve pr o gram
------- - - - - - --
Program
or
flexible memory
~--- - --
-------
Fixed memories (W - Z)
Subroutine I FOR NEXT
stack statement
stack
A certain number of C-MOS RAM (1 - 3 chips, 4K bits each) and another RAM incorporated inside
the display chip are used in this pocket computer, having varieties of configurations as described
below:
• Map of 4K-bit RAM
153 6 Bytes
2-2. RAM
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II
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