M30622ECTFP datasheet(24/184 Pages) MITSUBISHI

24 / 184 page

Tentative Specifications REV.A

Mitsubishi microcomputers

M16C / 62T Group

SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER

Specifications in this manual are tentative and subject to change.

Under

development

Memory Space Expansion Functions

An example of connecting the MCU with external memories in expansion mode 1

(An example of using M30622MC in microprocessor mode)

SFR area

Internal RAM

area

External area

Internal area reserved

0000016

0040016

017FF16

FFFFF16

D000016

0800016

CS2

(128K bytes)

2800016

3000016

0400016

CS0

SRAM

(128K bytes)

Flash

ROM

(1M byte)

Usable for

programs only

Usable both for

programs and

for data

(1008K bytes)

Usable for

data only

D0 to D7

A0 to A16

A17

A19

CS1

CS2

CS3

CS0

A18

D0 to D7

A0 to A16

A17

A18

A19

DQ0 to

DQ7

A0 to A16

Note 1. M30623(80-pin package) is not provided with the output pin

for the chip select signal.

Note 2. The M16C/62T group is not guaranteed to operate

in memory expansion and microprocessor modes.

A connection example

Figure 1.8.3 shows a connection example of the MCU with the external memories in expansion mode 1.

_______

In this example, CS0 is connected with a 1-M byte flash ROM and CS2 is connected with a 128-K byte

SRAM.

Figure 1.8.3. External memory connect example in expansion mode 1

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