mc68hc908bd48 Freescale Semiconductor, Inc, mc68hc908bd48 Datasheet - Page 251
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mc68hc908bd48
Manufacturer Part Number
mc68hc908bd48
Description
M68hc08 Microcontrollers Microcontroller
Manufacturer
Freescale Semiconductor, Inc
Datasheet
1.MC68HC908BD48.pdf
(288 pages)
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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:
•
•
•
•
•
•
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
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