46
Mitsubishi microcomputers
M16C / 62P Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Memory Space Expansion Function
development
Preliminary Specifications Rev.1.0
Specifications in this manual are tentative and subject to change.
Figure 1.8.4. Memory Mapping and CS Area in 4 Mbyte Mode (PM13=0)
40000
16
28000
16
D0000
16
Reserved area
C0000
16
Microprocessor mode
00000
16
00400
16
04000
16
XXXXX
16
YYYYY
16
FFFFF
16
08000
16
10000
16
Memory expansion mode
SFR
Internal RAM
Internal ROM
Reserved area
CS3
(16 Kbytes)
CS2
(PM10=0: 124 Kbytes)
CS2
(PM10=1: 92 Kbytes)
CS1
(96 Kbytes)
CS0
(Microprocessor mode:256 Kbytes)
Reserved area
27000
16
PM13=0
Reserved, external area
AAAAA
AAAAA
AAAAA
AAAAA
AAAAA
AAAAA
AAAAA
AAAAA
SFR
Internal RAM
Reserved area
Reserved area
CS0
(Memory expansion mode:64 Kbytes )
CS0
Memory expansion mode
C0000
16
–CFFFF
16
Microprocessor mode
C0000
16
–FFFFF
16
External area
CS1
28000
16
–
3FFFF
16
CS2
When PM10=0
08000
16
–26FFF
16
When PM10=1
10000
16
–26FFF
16
CS3
04000
16
–
07FFF
16
Other than the CS area
(512 Kbytes X 8 banks)
40000
16
–BFFFF
16
Other than the CS area (Note 1)
Note 1: The CS0 pin outputs a low signal, and the CS1–CS3 pins output a bank number.
Note 2: If PM13 bit is set to “0”, 15 Kbytes of the internal RAM and 192 Kbytes of the internal ROM can be used.
Capacity
48 Kbytes F4000
16
64 Kbytes F0000
16
96 Kbytes E8000
16
Address YYYYY
16
128 Kbytes E0000
16
192 Kbytes D0000
16
256 KbytesD0000
16
(Note2)
320 Kbytes D0000
16
(Note2)
Capacity
4 Kbytes 013FF
16
5 Kbytes 017FF
16
Address XXXXX
16
12 Kbytes 033FF
16
16 Kbytes 03FFF
16
(Note2)
20 Kbytes 03FFF
16
(Note2)
24 Kbytes 03FFF
16
(Note2)
31 Kbytes 03FFF
16
(Note2)
10 Kbytes 02BFF
16
384 Kbytes D0000
16
(Note2)
512 KbytesD0000
16
(Note2)
Internal RAM
Internal ROM
Reserved, external area
AAAAA
40000
16
External area
AAAAA
C0000
16
Reserved area
AAAAA
AAAAA
27000
16
Microprocessor mode
00000
16
00400
16
XXXXX
16
YYYYY
16
FFFFF
16
08000
16
Memory expansion mode
SFR
Internal RAM
Internal ROM
Reserved area
CS2
(PM10=0: 124 Kbytes)
CS2
(PM10=1: 92 Kbytes)
CS1
(96 Kbytes)
CS0
(Microprocessor mode:256 Kbytes)
28000
16
PM13=1
10000
16
AAAAA
AAAAA
AAAAA
AAAAA
AAAAA
AAAAA
AAAAA
SFR
Internal RAM
Reserved area
External area
Other than the CS area
(Microprocessor mode:512 Kbytes X 8 banks)
CS0
External area
CS1
28000
16
–
3FFFF
16
Microprocessor mode
C0000
16
–FFFFF
16
CS2
When PM10=0
08000
16
–26FFF
16
When PM10=1
10000
16
–26FFF
16
CS3
No area
80000
16
Other than the CS area
(Memory expansion mode:256 Kbytes X 8 banks)*
*Two 256 Kbytes X 8 banks can be used by changing the offset.
Other than the CS area (Note)
Memory expansion mode
04000
16
–7FFFF
16
Microprocessor mode
04000
16
–BFFFF
16
Note : The CS0 pin outputs a low signal, and the CS1–CS3 pins output a bank number.
Capacity
48 Kbytes
64 Kbytes
96 Kbytes
Address YYYYY
16
128 Kbytes
192 Kbytes
E0000
16
D0000
16
256 Kbytes
320 Kbytes
C0000
16
B0000
16
Capacity
4 Kbytes
5 Kbytes
Address XXXXX
16
12 Kbytes
16 Kbytes
033FF
16
043FF
16
20 Kbytes
24 Kbytes
31 Kbytes
053FF
16
063FF
16
07FFF
16
10 Kbytes
02BFF
16
384 Kbytes
512 Kbytes
A0000
16
80000
16
Internal RAM
Internal ROM
013FF
16
017FF
16
F4000
16
F0000
16
E8000
16
Figure 1.8.5. Memory Mapping and CS Area in 4 Mbyte Mode (PM13=1)