MB90583CAPF datasheet(24/110 Pages) FUJITSU

24 / 110 page

MB90580C Series

s MEMORY MAP

Note: The ROM data of bank FF is reflected in the upper address of bank 00, realizing effective use of the C

compiler small model. The lower 16-bit is assigned to the same address, enabling reference of the table on

the ROM without stating “far”. For example, if an attempt has been made to access 00C000H, the contents

of the ROM at FFC000H are accessed actually. Since the ROM area of the FF bank exceeds 48 Kbytes, the

whole area cannot be reflected in the image for the 00 bank. The ROM data at FF4000H to FFFFFFH looks,

therefore, as if it were the image for 00400H to 00FFFFH. Thus, it is recommended that the ROM data table

be stored in the area of FF4000H to FFFFFFH.

RAM

FFFFFFH

FC0000H

010000H

004000H

002000H

000100H

0000C0H

000000H

ROM area

(image of bank

FF)

ROM area

(image of bank

FF)

Peripheral

Single chip mode

A mirror function

is supported

Internal ROM

external bus mode

A mirror function

supported

External ROM

external bus

mode

: Internal

: External

: Inhibited area

Parts No.

Address#1

Address#2

Address#3

MB90583C/CA

FE0000H

004000H

001900H

MB90F583C/CA

FE0000H

004000H

001900H

MB90587C/CA

FF0000H

004000H

001100H

MB90V580B

(FE0000H)

004000H

001900H

Address#1

Address#2

Address#3

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