MC68HC08AZ0 Datasheet, PDF (321/444 Pages) Motorola, Inc – Advance Information

Freescale Semiconductor, Inc.
Keyboard Module (KB)
Keyboard Module
Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 319
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 319
Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 320
I/O Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 323
Keyboard status and control register (KBSCR) . . . . . . . . . . . . . . 323
Keyboard interrupt enable register (KBIER) . . . . . . . . . . . . . . . . . 324
Keyboard module during break interrupts . . . . . . . . . . . . . . . . . . . . . 325
Introduction
The keyboard module provides five independently maskable external
interrupt pins.
Features
Features of the keyboard module include the following:
• Five Keyboard Interrupt Pins and Interrupt Masks
• Selectable triggering sensitivity
1-kbd
MOTOROLA
Keyboard Module (KB)
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MC68HC08AZ0
319