M16C/62P Group (M16C/62P, M16C/62PT)
9. Memory Space Expansion Function
Rev.2.41
Jan 10, 2006
Page 77 of 390
REJ09B0185-0241
Figure 9.5
Memory Mapping and CS Area in 4-Mbyte mode (PM13=1)
Microprocessor mode
00000h
00400h
XXXXXh
YYYYYh
FFFFFh
C0000h
08000h
Memory expansion mode
SFR
Internal RAM
Internal ROM
Reserved area
Reserved area
CS2
(PM10=0: 124 Kbytes)
CS1
(96 Kbytes)
CS0
(Microprocessor mode : 256 Kbytes)
28000h
40000h
Reserved area
27000h
PM13=1
External area
10000h
SFR
Internal RAM
Reserved area
Reserved area
External area
CS2
(PM10=1: 92 Kbytes)
Other than the CS area
(Microprocessor mode : 512 Kbytes X 8 banks)
CS0
External area
CS1
Microprocessor mode
C0000h to FFFFFh
28000h to
3FFFFh
CS2
When PM10=0
08000h to 26FFFh
When PM10=1
10000h to 26FFFh
CS3
No area
80000h
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
(1)
Memory expansion mode
40000h to 7FFFFh
Microprocessor mode
40000h to BFFFFh
NOTES :
1. The CS0 pin outputs a low signal, and the CS1 to CS3 pins output a bank number.
2. For flash memory version, when the PM10 bit in the PM1 register is set to “1”, 0F000h to 0FFFFh can be used as internal ROM area.
Capacity
Address YYYYYh
128 Kbytes
E0000h
256 Kbytes
C0000h
Capacity
Address XXXXXh
12 Kbytes
033FFh
20 Kbytes
053FFh
10 Kbytes
02BFFh
24 Kbytes
063FFh
384 Kbytes
A0000h
512 Kbytes
80000h
Internal RAM
Internal ROM
4 Kbytes
013FFh
5 Kbytes
017FFh
31 Kbytes
07FFFh
48 Kbytes
F4000h
64 Kbytes
F0000h
96 Kbytes
E8000h
192 Kbytes
D0000h
320 Kbytes
B0000h
16 Kbytes
043FFh
Reserved, external area
(2)
Reserved, external area
(2)
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