M38B53M4-059FP datasheet(283/355 Pages) MITSUBISHI

Part #	M38B53M4-059FP

Description	8-BIT SINGLE-CHIP MICROCOMPUTER

PDF	355 Pages

Scroll/Zoom	100%

Manufacturer	MITSUBISHI [Mitsubishi Electric Semiconductor]

Direct Link	http://www.mitsubishichips.com

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283 / 355 page

38B5 Group User’s Manual

3-35

APPENDIX

3.5 Control registers

Fig. 3.5.5 Structure of port P9

Fig. 3.5.6 Structure of port P9 direction register

Port P9

b7 b6 b5 b4 b3 b2 b1 b0

Port P9

(P9: address 1216)

Port P90

qIn output mode

Write •••••••• Port latch

Read •••••••• Port latch

qIn input mode

Write •••••••• Port latch

Read •••••••• Value of pin

Port P91

Functions

Name

At reset R W

Nothing is arranged for these bits. When these

bits are read out, the contents are undefined.

Port P9 direction register

b7 b6 b5 b4 b3 b2 b1 b0

Port P9 direction register

(P9D: address 1316)

0 : Port P90 input mode

1 : Port P90 output mode

Name

Functions

At reset R W

0 : Port P91 input mode

1 : Port P91 output mode

Port P9 direction

Nothing is arranged for these bits. When these

bits are read out, the contents are undefined.

M38B53M4-059FP Datasheet(PDF) 283 Page - Mitsubishi Electric Semiconductor