MB89490 데이터 시트보기 (PDF) - Fujitsu

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MB89490

8-bit Proprietary Microcontroller

Fujitsu 

MB89490 Series

■ CPU CORE

1. Memory Space

The microcontrollers of the MB89490 series offer a memory space of 64 Kbytes for storing all of I/O, data, and

program areas. The I/O area is located the lowest address. The data area is provided immediately above the

I/O area. The data area can be divided into register, stack, and direct areas according to the application. The

program area is located at exactly the opposite end, that is, near the highest address. Provide the tables of

interrupt reset vectors and vector call instructions toward the highest address within the program area. The

memory space of the MB89490 series is structured as illustrated below.

Memory Space

MB89497

0000H

I/O

0080H

RAM

0100H

General-

purpose

0200H registers

0480H

Vacant

8000H

FFC0H

FFFFH

ROM

MB89498

0000H

I/O

0080H

RAM

0100H

General-

purpose

0200H registers

0880H

Vacant

4000H

FFC0H

FFFFH

ROM

MB89F499

0000H

I/O

0080H

RAM

0100H

General-

purpose

0200H registers

0880H

1000H

Vacant

FLASH

(60K)

FFC0H

FFFFH

MB89PV490

0000H

I/O

0080H

RAM

0100H

General-

purpose

0200H registers

0880H

1000H

Vacant

External

ROM

(60K)

FFC0H

FFFFH

Vector table (reset, interrupt, vector call instruction)

17

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