M16C65 Datasheet, PDF (220/829 Pages) Renesas Technology Corp – RENESAS MCU M16C FAMILY / M16C/60

Under development
M16C/65 Group
Preliminary Specification
This is a preliminary specification and is subject to change.
12. Memory Space Expansion Function
Memory expansion mode
00000h
00400h
XXXXXh
SFR
Internal RAM ⁽¹⁾
Microprocessor mode
SFR
Internal RAM ⁽¹⁾
08000h
0D000h
0D800h
0E000h
10000h
14000h
Reserved area
SFR
Data flash ⁽²⁾
Program ROM 2 ⁽³⁾
27000h
28000h
30000h
Reserved area
External area
Reserved area
SFR
Reserved, external area ⁽⁴⁾
Reserved, external area ⁽⁵⁾
CS2
Reserved area
External area
CS1 (32 Kbytes)
80000h
YYYYYh
FFFFFh
Reserved area
Program ROM 1 ⁽¹⁾
CS0
Notes :
1. See the table below for addresses XXXXXh and YYYYYh.
Internal RAM
Capacity Address XXXXXh Capacity
12 Kbytes
033FFh ^{128 Kbytes}
20 Kbytes
053FFh 256 Kbytes
31 Kbytes
07FFFh 384 Kbytes
47 Kbytes
0BFFFh ^{512 Kbytes}
640 Kbytes
768 Kbytes
Program ROM1
Address YYYYYh
E0000h
C0000h
A0000h
80000h
80000h (when IRON = 0)
60000h (when IRON = 1)
80000h (when IRON = 0)
40000h (when IRON = 1)
IRON : Bit in the PRG2C register
2. When the PM10 bit is 0, this area is used as an external area; when 1, used as
internal ROM (data flash).
3. When the PRG2C0 bit in the PRG2C register is 1, this area is used as an external area;
when 0, used as internal ROM (program ROM 2).
4. When the PM10 bit is 0, this area is used as an external area; when 1, used as a reserved area.
5. When the PRG2C0 bit in the PRG2C register is 1, this area is used as an external area;
when 0, used as a reserved area.
Figure 12.2 Memory Mapping and CS Areas in 1-Mbyte Mode (PM13 = 1)
REJ09B0484-0030 Rev.0.30 Sep 09, 2008
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