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MZ 3500
2. SOFTWARE (MEMORY) CONFIGURATION
Memory will be operated under four states of SOO
~
S03,
depending on the hardware and software configurations.
In the paragraphs to follow, description will be made for
those four states.
MA3
MA2
MAl
MAO
MAIN CPU
o
o
o
o
o
o
o
~
FFFF
FFFF
1
jRAM<COM)
~.
t,
COOO
BFFF
8000
7FFF
RAMA
4
RAMA
3
----
RAMA
2
4000
3FFF
I
I
) : ROMB
I
I
2000
L ____
J
RAMA
1
-
--
OFFF
EJ-
ROM
~
IPL
_ - -
0000
- - -
"
\\
,\
\'
,\
"
---
-
-
\
,
\
'\
2-1. SOO (INITIALIZE STATE)
SOO can only exist immediately after power on, and the
system executes
IPL
under this condition and that the
system thus loaded will automatically assign memory area
for SOl, S02, and S03.
SUB CPU
MSl=O(L)
MSO=O(L)
-
- --,
\,
\\
\\
\\
\ \
\\
\\
\\
\
\
\
\
\,
\
\
\
\
\ \
\
\
\ \
\
\
\
\
\ \
\
L ____ ,
I
I
I
ROM
I
'(SPAPE)
I
I
I
RAM
so
RAM
SC
RAM
SB
RAM
SA
5F , FF
5800
57PF
5000
4FFF
HM
4000
\
27 FF
RAI,I(CQM)
20
1
00
1 FFF
---
ROM
IPL
---
-
-
-
-
L -_ _ ....J
0000
-7-
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