MC68HC705J MOTOROLA [Motorola, Inc], MC68HC705J Datasheet - Page 101

• Manufacturer Part Number: MC68HC705J
• Description: Microcontrollers
• Manufacturer: MOTOROLA [Motorola, Inc]

8.1 Contents
8.2 Introduction
MC68HC705J1A — Rev. 4.0
MOTOROLA
Technical Data — MC68HC705J1A
8.2
8.3
8.3.1
8.3.2
8.4
8.5
8.5.1
8.5.2
The external interrupt (IRQ) module provides asynchronous external
interrupts to the CPU. These sources can generate external interrupts:
Features include:
Section 8. External Interrupt Module (IRQ)
•
•
•
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•
IRQ/V
PA0–PA3 pins
Dedicated external interrupt pin (IRQ/V
Selectable interrupt on four input/output (I/O) pins (PA0–PA3)
Programmable edge-only or edge- and level-interrupt sensitivity
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
IRQ Status and Control Register . . . . . . . . . . . . . . . . . . . . . . 106
External Interrupt Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
IRQ/V
Optional External Interrupts . . . . . . . . . . . . . . . . . . . . . . . . 104
5.0-Volt External Interrupt Timing Characteristics . . . . . . . 107
3.3-Volt External Interrupt Timing Characteristics . . . . . . . 107
External Interrupt Module (IRQ)
PP
pin
PP
Pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
PP
)
Technical Data
101