mc68hc908bd48 Freescale Semiconductor, Inc, mc68hc908bd48 Datasheet - Page 251

• Manufacturer Part Number: mc68hc908bd48
• Description: M68hc08 Microcontrollers Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

18.1 Contents
18.2 Introduction
18.3 Features
MC68HC908BD48
Freescale Semiconductor
Data Sheet — MC68HC908BD48
—
Rev. 2.1
18.2
18.3
18.4
18.5
18.6
18.7
The IRQ (external interrupt) module provides a maskable interrupt input.
Features of the IRQ module include:
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A dedicated external interrupt pin (IRQ)
IRQ interrupt control bits
Hysteresis buffer
Programmable edge-only or edge and level interrupt sensitivity
Automatic interrupt acknowledge
Internal pullup resistor
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 251
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 251
IRQ Module During Break Interrupts . . . . . . . . . . . . . . . . . . . 255
IRQ Status and Control Register . . . . . . . . . . . . . . . . . . . . . . 255
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .252
IRQ Pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 254
Section 18. External Interrupt (IRQ)
External Interrupt (IRQ)
Data Sheet
251