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FUJITSU MB91460 SERIES FR60 User Manual

Page 573

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557

Chapter 31 External Bus

4.Endian and Bus Access

16-bit bus
width

8-bit bus
width

Big endian mode

Little endian mode

AA

BB

WR0

WR1

BB

AA

address: "2"

D00

D31

D31

Internal External Control
Reg terminal terminal

(1)

D16

AA

BB

WR0

WR1

B

A

address: "0"

D00

D31

D31

Internal External Control
Reg terminal terminal

(1)

D16

CC

DD

WR0

WR1

DD

CC

address: "2"

D00

D31

D31

Internal External Control
Reg terminal terminal

(1)

D16

CC

DD

WR0

WR1

DD

CC

address: "2"

D00

D31

D31

Internal External Control
Reg terminal terminal

(1)

D16

AA

BB

WR0

BB

AA

address: "0" "1"

D00

D00

D31

D31

Internal External Control
Reg terminal terminal

(1) (2)

D24

AA

BB

WR0

AA

BB

address: "0" "1"

D00

D00

D31

D31

Internal External Control
Reg terminal terminal

(1) (2)

D24

CC

DD

WR0

DD

CC

address: "2" "3"

D00

D00

D31

D31

Internal External Control
Reg terminal terminal

(1) (2)

D24

CC

DD

WR0

CC

DD

address: "2" "3"

D00

D00

D31

D31

Internal External Control
Reg terminal terminal

(1) (2)

D24