M16C6C Datasheet, PDF (19/94 Pages) Renesas Technology Corp – RENESAS MCU

M16C/6C Group
3. Address Space
3. Address Space
3.1 Address Space
The M16C/6C Group has a 1 MB address space from 00000h to FFFFFh. Figure 3.1 shows the Address
Space. Areas that can be accessed vary depending on processor mode and the status of each control bit.
Address space
1 Mbyte
Memory expand mode
00000h
00400h
SFR
Internal RAM
Internal RAM is allocated from
address 00400h to higher.
04000h
0D000h
0D800h
0E000h
10000h
14000h
27000h
28000h
Reserved area
External area
SFR
External area
Internal ROM
(data flash)
Internal ROM
(program ROM2)
External area
Reserved area
When data flash is enabled
When program ROM 2
is enabled
External area
D0000h
Reserved area
FFFFFh
Internal ROM
(program ROM1)
Program ROM 1 is allocated from
address FFFFFh to lower.
Notes:
1. Do not access reserved areas.
2. The figure above applies under the following conditions:
- The PM13 bit in the PM1 register is set to 0
(addresses from 04000h to 0CFFFh and from 80000h to CFFFFh are used as external areas)
Figure 3.1 Address Space
REJ03B0277-0100 Rev.1.00 Jul.15, 2009
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