mc68hc908jb8 Freescale Semiconductor, Inc, mc68hc908jb8 Datasheet - Page 199

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mc68hc908jb8

Manufacturer Part Number
mc68hc908jb8
Description
M68hc08 Microcontrollers
Manufacturer
Freescale Semiconductor, Inc
Datasheet

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Technical Data — MC68HC908JB8•MC68HC08JB8•MC68HC08JT8
12.1 Contents
12.2 Introduction
MC68HC908JB8•MC68HC08JB8•MC68HC08JT8 — Rev. 2.3
Freescale Semiconductor
12.2
12.3
12.3.1
12.3.2
12.4
12.4.1
12.4.2
12.5
12.5.1
12.5.2
12.6
12.6.1
12.6.2
12.7
12.7.1
12.7.2
12.8
12.8.1
Thirty-seven (37) bidirectional input-output (I/O) pins form five parallel
ports. All I/O pins are programmable as inputs or outputs.
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 199
Port A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202
Port B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204
Port C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207
Port D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 209
Port E . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 212
Port Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 216
Port A Data Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202
Data Direction Register A. . . . . . . . . . . . . . . . . . . . . . . . . . 203
Port B Data Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204
Data Direction Register B. . . . . . . . . . . . . . . . . . . . . . . . . . 205
Port C Data Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207
Data Direction Register C. . . . . . . . . . . . . . . . . . . . . . . . . . 208
Port D Data Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 210
Data Direction Register D. . . . . . . . . . . . . . . . . . . . . . . . . . 211
Port E Data Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 213
Data Direction Register E. . . . . . . . . . . . . . . . . . . . . . . . . . 215
Port Option Control Register . . . . . . . . . . . . . . . . . . . . . . .217
Section 12. Input/Output Ports (I/O)
Input/Output Ports (I/O)
Technical Data
199

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