MB89485PFM 데이터 시트보기 (PDF) - Fujitsu

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MB89485PFM

(MB89490 Series) 8-bit Proprietary Microcontroller

Fujitsu 

MB89480/480L Series

s CPU CORE

1. Memory Space

The microcontrollers of the MB89480 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 MB89480 series is structured as illustrated below.

Memory Space

MB89485/485L

0000H

I/O

0080H

RAM

0100H

General-

purpose

0200H registers

0280H

MB89P485/P485L

0000H

I/O

0080H

RAM

0100H

General-

purpose

0200H registers

0280H

MB89PV480

0000H

I/O

0080H

RAM

0100H

General-

purpose

0200H registers

0480H

Vacant

C000H

FFC0H

FFFFH

ROM

Vacant

C000H

FFC0H

FFFFH

ROM

Vacant

8000H

FFC0H

FFFFH

External

ROM

(32KB)

Vector table (reset, interrupt, vector call instruction)

20

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