MB90330A datasheet(78/120 Pages) FUJITSU

Part #	MB90330A

Description	16-bit Microcontroller

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Manufacturer	FUJITSU [Fujitsu Component Limited.]

Direct Link	http://edevice.fujitsu.com/fmd/en/index.html

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78 / 120 page

MB90330A Series

78

16. External bus pin control circuit

The external bus pin control circuit controls external bus pins to extend the CPU address and data buses to

externals.

• Register list

• Block Diagram

• Automatic ready function selection register (ARSR)

• External address output control register (HACR)

• Bus control signal selection register (EPCR)

bit

Initial Value

Address : 0000A5H

0011- - 00B

bit

Initial Value

Address : 0000A6H

* * * * * * * * B

bit

Initial Value

Address : 0000A7H

1000*10 -B

W

−

*

:Write only

:Unused

:“1” or “0”

(W)

(

⎯)(⎯)

(W)

15

14

13

12

11

10

9

8

ICR0

(W)

ICR1

HMR1

HMR0

⎯⎯

LMR1

LMR0

(W)

76

5

4

3

2

1

0

E22

(W)

E23

E21

E20

E19

E18

E17

E16

(W)

(

⎯)

15

14

13

12

11

10

98

RYE

(W)

CKE

HDE

Reserved HMBS

(W)RE

LMBS

⎯

P3

P2

P1

P0

P5

RB

P4

P5

Access

control

Access control

Address control

Data control

P0 direction

P0 data

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MB90330A Datasheet(PDF) 78 Page - Fujitsu Component Limited.

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