MC68HC08AZ16 Datasheet, PDF (314/527 Pages) Motorola, Inc – HCMOS Microcontroller Unit

Keyboard Module (KB)
Keyboard Module
Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 313
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 313
Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 314
I/O Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 318
Keyboard status and control register (KBSCR) . . . . . . . . . . . . . . 318
Keyboard interrupt enable register (KBIER) . . . . . . . . . . . . . . . . . 319
Keyboard module during break interrupts . . . . . . . . . . . . . . . . . . . . . 320
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)
MC68HC08AZ32
313