3. 1. 2 System structure
CD
Main CPU: NSCSOO
• Z80 CPU and software compatible
• 8085 and bus line compatible
•CMOS CPU
CZ)
SK RAM:
Incorporated 8K byte RAM
2K byte CMOS RAM
x
4
{
System area
Used as
Text area
File area
Q)
20K ROM:
The BASIC interpreter is written in this ROM.
@
SK byte memory socket
To extend memory, an 8K byte ROM, EPROM, RAM, etc. can be
connected to this 28 pin DIP socket. The X-07 comes already connected
with an 8K byte extended RAM.
Caution: This socket is for extending memory. However, do not use
this socket carelessly. If an inappropriate memory IC is
connected, it might damage the X-07. Do not use this socket
by yourself. Consult your dealer.
@
Sub CPU
The
8
bit CPU controls the keyboard, the timer, the LCD, etc. Even
when the power is turned OFF, it keeps functioning on power supplied
by the bateries.
@
Keyboard
102
• 49 keys (numbers, letters and symbols)
• 6 user defined keys
([EI]
to
F6
•
key and
(control) key
• 7 display control keys (
DE
L
[E, �
,
�
,and
• 2 mode keys (
and
NUM
• 2 power keys
and
For a total of 68 keys.
Содержание X-07
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Страница 8: ...1 Learning how to operate the X 07 2 Special functions and peripheral devices 3 Reference m ...
Страница 10: ...Learmng how to operate the X 07 ...
Страница 11: ...2 ...
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Страница 107: ...00 ...
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Страница 145: ...136 Instructions Others BEEP MOTOR REM Functions ABS FIX HEX INT SGN START TAB ...
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