MB90233 データシートの表示（PDF） - Fujitsu

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MB90233

16-bit Proprietary Microcontroller

Fujitsu 

s MEMORY MAP

FFFFFFH

Address1#

Single-chip mode

ROM area

00FFFFH

Address#2

ROM area

(FF bank image)

MB90230 Series

Internal ROM and

external bus

ROM area

External ROM and

external bus

ROM area

(FF bank image)

Address#3

000100H

0000C0H

000000H

RAM

Registers

Peripherals

RAM

Registers

Peripherals

RAM

Registers

Peripherals

Internal

External

Inhibited area

Note: 000000H to 000005H and 000010H to 000015H are allocated for external use

when the external bus is enabled.

Product type

MB90233

MB90234

MB90P234

MB90W234

MB90V230

Address#1

FF4000H

FE8000H

FE8000H

(FE0000H)

Address#2

004000H

004000H

004000H

(004000H)

Address#3

000900H

000D00H

000D00H

(001100H)

The MB90230 series can access the 00 bank to read ROM data written to the upper 48-KB locations in the FF

bank. An advantage of reading written to data addresses FFFFFFH-FF4000H from addresses 00FFFFH-004000H is

that you can use the small model of a C compiler.

Note, however, that the products with more than 48KB ROM space (MB90V230, MB90P/W234, MB90234) cannot

read data in addresses other than FFFFFFH to FF4000H from the 00 bank.

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