MC68HC705 MOTOROLA [Motorola, Inc], MC68HC705 Datasheet - Page 75

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MC68HC705

Manufacturer Part Number
MC68HC705
Description
HCMOS Microcontroller Unit
Manufacturer
MOTOROLA [Motorola, Inc]
Datasheet

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7.1 Contents
7.2 Introduction
MC68HC705C8A — Rev. 2.0
MOTOROLA
Technical Data — MC68HC705C8A
7.2
7.3
7.3.1
7.3.2
7.3.3
7.4
7.4.1
7.4.2
7.4.3
7.5
7.5.1
7.5.2
7.5.3
7.6
This section describes the programming of ports A, B, C, and D.
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .75
Port A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .76
Port B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .79
Port C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .83
Port D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .86
Port A Data Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .76
Data Direction Register A. . . . . . . . . . . . . . . . . . . . . . . . . . .77
Port A Logic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .78
Port B Data Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .79
Data Direction Register B. . . . . . . . . . . . . . . . . . . . . . . . . . .80
Port B Logic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .81
Port C Data Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .83
Data Direction Register C. . . . . . . . . . . . . . . . . . . . . . . . . . .84
Port C Logic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .85
Section 7. Parallel Input/Output (I/O)
Parallel Input/Output (I/O)
Technical Data
75

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