M16C65 Datasheet, PDF (222/829 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
SFR
00400h
XXXXXh
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⁾
Reserved area
SFR
Reserved, external area ⁽⁴⁾
Reserved, external area ⁽⁵⁾
CS2
27000h
28000h
40000h
Reserved area
External area
80000h
C0000h
YYYYYh
FFFFFh
Reserved area
Program ROM 1 ⁽¹⁾
Reserved area
External area
CS1 (96 Kbytes)
Other than the CS area (Note 6)
CS0 (256 Kbytes)
Notes :
1. See the table below for addresses XXXXXh and YYYYYh.
Internal RAM
Program ROM 1
Capacity Address XXXXXh Capacity Address YYYYYh
12 Kbytes
20 Kbytes
31 Kbytes
47 Kbytes
033FFh
053FFh
07FFFh
0BFFFh
128 Kbytes
256 Kbytes
384 Kbytes
512 Kbytes
E0000h
C0000h
A0000h
80000h
640 Kbytes
80000h
768 Kbytes
80000h
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.
6. The CS0 pin outputs a low signal, and pins CS1 to CS3 output a bank number.
Figure 12.4 Memory Mapping and CS Areas in 4-Mbyte Mode (PM13 = 1)
REJ09B0484-0030 Rev.0.30 Sep 09, 2008
Page 187 of 791