MC68HC908QY2 MOTOROLA [Motorola, Inc], MC68HC908QY2 Datasheet - Page 177

• Manufacturer Part Number: MC68HC908QY2
• Description: Microcontrollers
• Manufacturer: MOTOROLA [Motorola, Inc]

14.1 Contents
14.2 Introduction
MOTOROLA
Data Sheet — MC68HC908QY4
MC68HC908QY4•MC68HC908QT4•MC68HC908QY2•MC68HC908QT2•MC68HC908QY1•MC68HC908QT1
Section 14. Keyboard Interrupt Module (KBI)
14.2
14.3
14.4
14.4.1
14.4.2
14.4.3
14.4.4
14.5
14.6
14.7
The keyboard interrupt module (KBI) provides six independently
maskable external interrupts, which are accessible via the PTA0–PTA5
pins, plus one internal maskable interrupt controlled by the auto wake-up
logic.
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 178
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 179
Wait Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186
Stop Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186
Keyboard Module During Break Interrupts . . . . . . . . . . . . . . . 187
Keyboard Initialization . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181
Keyboard Status and Control Register. . . . . . . . . . . . . . . . 182
Keyboard Interrupt Enable Register . . . . . . . . . . . . . . . . . . 184
Auto Wake-up Interrupt Request . . . . . . . . . . . . . . . . . . . . 185
Keyboard Interrupt Module (KBI)
177