M16CSLASH62A datasheet(44/615 Pages) RENESAS

44 / 615 page

Mitsubishi microcomputers

M16C / 62A Group

SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER

Processor Mode

1-25

SFR area

(1K bytes)

Internal RAM area

(15K bytes)

External area

0000016

0040016

FFFFF16

D000016

0800016

Internal RAM area

(15K bytes)

External area

Internal ROM area

(192K bytes)

CS3(16K bytes)

CS2(128K bytes)

CS1(32K bytes)

CS0

Memory expansion mode

: 640K bytes

Microprocessor mode

: 832K bytes

2800016

3000016

0400016

Internal reserved area expansion bit=“0”

SFR area

(1K bytes)

After reset

SFR area

(1K bytes)

0000016

0040016

FFFFF16

C000016

0800016

Internal RAM area

(20K bytes)

Internal ROM area

(256K bytes)

CS3(8K bytes)

CS2(128K bytes)

CS1(32K bytes)

CS0

Memory expansion mode

: 576K bytes

Microprocessor mode

: 832K bytes

2800016

3000016

0540016

Internal reserved area expansion bit=“1” (Note)

SFR area

(1K bytes)

After reset, and set the Internal reserved area expansion bit to “1”

0600016

BFFFF16

CFFFF16

Note: When the reset is revoked, this bit is set to “0”. Therefore, the top

of the user program must be allocated to D000016 or subsequent address.

Memory expansion

mode

Microprocessor

mode

Memory expansion

mode

Microprocessor

mode

Internal RAM area

(20K bytes)

Internal reserved area

External area

Internal reserved area

Figure 1.7.3. Memory location and chip select area in each processor mode

Figure 1.7.3 shows the memory maps and the chip selection areas effected by PM13 (the internal re-

served area expansion bit) in each processor mode for the product having an internal RAM of more than

15K bytes and a ROM of more than 192K bytes.

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