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MZ3500
2.
SOFTWARE (MEMORY) CONFIGURATION
Memory
will
be
operated under
four
states
of
SDO
~
SD3,
depending
on the
hardware
and
software configurations.
In the
paragraphs
to
follow,
description
will
be
made
for
those
four
states.
2-1.
SDO
(INITIALIZE
STATE)
SDO
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
SD1, SD2.
and
SD3.
MAIN
CPU
SUB
CPU
MAS
MA2
MAI
MAO
FFFF
0
0
0
0
cooo
BFFF
8000
7FFF
RAMA
RAMA
RAMA
4000
3FFF
i
|
ROME
[
I
I
2000
I '
0
0
0
1
V
FFFF
RAMA
1
1
1
1
T
MS1
= ° (D
MSO
= 0 (L)
?
IRAM(COM^
jOO
1
——
^\
reoo
1
\\
u
\\
\\
\\
N
v
V
\
\
ROM
(SPAPE)
OFFF
0000
ROM
JPL
RAM
(COM)
ROM
IPL
4000
27FF
2000
1
FFF
0000
*7