M16C/62P Group (M16C/62P, M16C/62PT)
9. Memory Space Expansion Function
Rev.2.41
Jan 10, 2006
Page 76 of 390
REJ09B0185-0241
Figure 9.4
Memory Mapping and CS Area in 4-Mbyte mode (PM13=0)
Microprocessor mode
00000h
00400h
XXXXXh
YYYYYh
FFFFFh
D0000h
08000h
Memory expansion mode
SFR
Internal RAM
Internal ROM
Reserved area
Reserved area
CS3
(16 Kbytes)
CS2
(PM10=0 : 124 Kbytes)
CS1
(96 Kbytes)
CS0
(Microprocessor mode : 256 Kbytes)
28000h
40000h
04000h
Reserved area
27000h
PM13=0
Reserved, external area
(3)
External area
10000h
SFR
Internal RAM
Reserved area
Reserved area
External area
CS2
(PM10=1 : 92 Kbytes)
CS0
(Memory expansion mode : 64 Kbytes )
CS0
Memory expansion mode
C0000h to CFFFFh
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
04000h to
07FFFh
C0000h
Other than the CS area
(512 Kbytes X 8 banks)
40000h to BFFFFh
Other than the CS area
(1)
NOTES :
1. The CS0 pin outputs a low signal, and the CS1 to CS3 pins output a bank number.
2. If PM13 bit in the PM1 register is set to “0”, 15 Kbytes of the internal RAM and 192 Kbytes of the internal ROM can be used.
3. 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 D0000h
(2)
Capacity
Address XXXXXh
12 Kbytes 033FFh
20 Kbytes 03FFFh
(2)
10 Kbytes 02BFFh
24 Kbytes 03FFFh
(2)
384 Kbytes D0000h
(2)
512 Kbytes D0000h
(2)
Internal RAM
Internal ROM
4 Kbytes 013FFh
5 Kbytes 017FFh
31 Kbytes 03FFFh
(2)
48 Kbytes F4000h
64 Kbytes F0000h
96 Kbytes E8000h
192 Kbytes D0000h
320 Kbytes D0000h
(2)
16 Kbytes 03FFFh
(2)
Reserved, external area
(3)
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