R5F36CAMDFB datasheet(19/94 Pages) RENESAS

19 / 94 page

REJ03B0277-0100 Rev.1.00 Jul.15, 2009

Page 17 of 90

M16C/6C Group

3. Address Space

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.

Figure 3.1

Address Space

Internal RAM

Reserved area

00000h

0D000h

SFR

00400h

SFR

0D800h

Internal ROM

(data flash)

0E000h

Internal ROM

(program ROM2)

10000h

Reserved area

Internal ROM

(program ROM1)

14000h

FFFFFh

Reserved area

28000h

27000h

External area

04000h

External area

Internal RAM is allocated from

address 00400h to higher.

Program ROM 1 is allocated from

address FFFFFh to lower.

When data flash is enabled

When program ROM 2

is enabled

Memory expand mode

Address space

1 Mbyte

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)

D0000h

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