MC68HC908JK3 MOTOROLA [Motorola, Inc], MC68HC908JK3 Datasheet - Page 165

• Manufacturer Part Number: MC68HC908JK3
• Description: MC68HC908JK1
• Manufacturer: MOTOROLA [Motorola, Inc]

14.1 Contents
14.2 Introduction
14.3 Features
MC68H(R)C908JL3
MOTOROLA
Technical Data — MC68H(R)C908JL3
—
Rev. 1.0
Section 14. Keyboard Interrupt Module (KBI)
14.2
14.3
14.4
14.4.1
14.4.2
14.4.3
14.5
14.6
14.7
The keyboard interrupt module (KBI) provides seven independently
maskable external interrupts which are accessible via PTA0–PTA6 pins.
Features of the keyboard interrupt module include the following:
•
•
•
•
Seven keyboard interrupt pins with separate keyboard interrupt
enable bits and one keyboard interrupt mask
Software configurable pull-up device if input pin is configured as
input port bit
Programmable edge-only or edge- and level- interrupt sensitivity
Exit from low-power modes
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166
Wait Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171
Stop Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171
Keyboard Module During Break Interrupts . . . . . . . . . . . . . . . 171
Keyboard Initialization . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168
Keyboard Status and Control Register. . . . . . . . . . . . . . . . 169
Keyboard Interrupt Enable Register . . . . . . . . . . . . . . . . . . 170
Keyboard Interrupt Module (KBI)
Technical Data
165