Under
development
Preliminary Specifications REV.1.02
Specifications in this manual are tentative and subject to change.
Mitsubishi Microcomputers
M32C/83 group
SINGLE-CHIP 16/32-BIT CMOS MICROCOMPUTER
51
Processor Mode
Figure 1.6.3. Memory Map in Each Processor Mode
Single-chip
mode
Memory
expansion
mode
Microprocessor
mode
SFR
Internal
RAM
Reserved
space
Internal
ROM
No
use
External
space
0
CS2
2M
bytes
External
space
1
CS0
2M
bytes
External
space
3
No
use
Internal
ROM
Reserved
space
Internal
ROM
Reserved
space
Internal
ROM
Reserved
space
CS0
3M
bytes
External
space
3
CS1
4M
bytes
External
space
0
External
space
3
No
use
CS0
2M
bytes
External
space
3
CS0
4M
bytes
External
space
3
000000
16
000400
16
000800
16
200000
16
400000
16
C00000
16
E00000
16
F00000
16
FFFFFF
16
Each
CS0
to
CS3
can
be
set
for
0
to
3
wait(s)
in
the
WCR
register.
Mode
0
Mode
1
M
ode
2
M
ode
0
Mode
1
Mode
2
SFR
Internal
RAM
Reserved
space
SFR
Internal
RAM
Reserved
space
SFR
Internal
RAM
Reserved
space
SFR
Internal
RAM
Reserved
space
SFR
Internal
RAM
Reserved
space
SFR
Internal
RAM
Mode
3
Reserved
space
SFR
Internal
RAM
Internal
ROM
Reserved
space
CS1,
1M
byte
External
space
0
Mode
3
Reserved
space
SFR
Internal
RAM
No
use
CS2,
1M
byte
External
space
1
No
use
DRAM
connectable
space
0,
0.5
to
8M
byte
(Available
as
external
space
when
DRAM
is
not
used)
DRAM
connectable
space
0,
0.5
to
8M
bytes(
When
open
space
is
under
8M
bytes,
cannot
use
the
rest
of
this
space)
DRAM
connectable
space
0,
0.5
to
8M
bytes(
When
open
space
is
under
8M
bytes,
cannot
use
the
rest
of
this
space)
DRAM
connectable
space
0,
0.5
to
8M
bytes
(When
open
space
is
under
8M
bytes,
cannot
use
the
rest
of
this
space)
No
use
(Cannot
use
as
DRAM
space
or
external
space)
DRAM
connectable
space
0,
0.5
to
8M
bytes(
Available
as
external
space
when
DRAM
is
not
used)
DRAM
connectable
space
0,
0.5
to
8M
bytes(
When
open
space
is
under
8M
bytes,
cannot
use
the
rest
of
this
space)
No
use
(Cannot
use
as
DRAM
space
or
external
space)
No
use
No
use
No
use
CS1
2M
bytes
External
space
0
No
use
Notes
:
1.
200000
16
–
008000
16
=2016K
bytes.
32K
bytes
less
than
2M
bytes.
2.
400000
16
–
008000
16
=4064K
bytes.
32K
bytes
less
than
4M
bytes.
External
space
1
External
space
0
CS2
2M
bytes
External
space
1
CS1
4M
bytes
External
space
0
CS1,
1M
byte
External
space
0
CS2,
1M
byte
External
space
1
CS1
2M
bytes
External
space
0
External
space
1
(External
space
2)
(External
space
2)
(External
space
2)
(External
space
2)
(External
space
2)
(External
space
2)
External
space
3
CS3,
1M
byte
External
space
2
CS0,
1M
byte
External
space
3
CS3,
1M
byte
External
space
2
CS0,
1M
byte
External
space
3
1
2
1
2
100000
16