ECE3120: Computer Systems Chapter 6: Interrupts

May 07, 2012

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ECE3120: Computer Systems Chapter 6: Interrupts

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1. ECE3120: Computer SystemsChapter 6: Interrupts Dr. Xubin He http://iweb.tntech.edu/hexb Email: hexb@tntech.edu Tel: 931-3723462, Brown Hall 319

2. Prev� Parallel Ports Today� Concepts of Interrupts

8. Next� 68HCS12 exception processing

Interrupts

Interrupts. ELEC 330 Digital Systems Engineering Dr. Ron Hayne Images Courtesy of Ramesh Gaonkar and Delmar Learning. Basic Concepts of Interrupts. An interrupt is a communication process A device Requests the MPU to stop processing Internal or external The MPU

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ECE3120: Chapter 7- Parallel Ports Interfacing with simple input devices

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ELEC4601 Microprocessor systems Lab 3 Tutorial

ELEC4601 Microprocessor systems Lab 3 Tutorial. Interrupts . Objectives. Interrupt Interrupt controller Timer Display controller. Interrupts. 1) Understand Interrupts and their use in a microprocessor-based system

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Operating Systems and Computer Organization

Operating Systems and Computer Organization. Chapter 4. Operating System and Computer Organization. Organization of Conventional Computers The ALU The Control Unit The Memory Unit I/O Devices Interrupts Hardware protection. Conventional Computer Organization. Operands. R1. R2. …. Rn.

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8051 Interrupts

Interrupts Programming. An interrupt is an external or internal event that interrupts the microcontroller to inform it that a device needs its service.Interrupts vs. PollingA single microcontroller can serve several devices. There are two ways to do that:interrupts polling.The program which

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Lecture 5: Interrupts, Superscalar

Lecture 5: Interrupts, Superscalar. Professor Alvin R. Lebeck Computer Science 220 / ECE 252 Fall 2008. Admin. Homework #1 Due Today Homework #2 Assigned Reading H&P Chapter 2 & 3 (suggested) Research papers (not yet ready to read, but will be soon!):

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EEE527 Embedded Systems Lecture 8: Practical Interrupts

EEE527 Embedded Systems Lecture 8: Practical Interrupts. "Adapted from the url “ http://umassamherstm5.org/tech-tutorials/pic32-tutorials/pic32mx220-tutorials/interrupts ”. Ian McCrum Room 5B18, Tel: 90 366364 voice mail on 6 th ring

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Interrupts

Interrupts. Embedded systems often perform some tasks which are infrequent and possibly unpredictable Hang up a VOIP phone when receiver is dropped Apply brakes when brake pedal is pressed Regular tasks must be temporarily stopped to deal with the event Interrupts are the unusual events

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Interrupts on the Intel 8051

Interrupts on the Intel 8051. Presented by: Joe Conner For: Advanced Embedded Systems Design BAE 5030 08/30/04. Overview. Memory Map Interrupts How interrupts are handled Response Time. Memory Map. TCON (0x88 ). IE (0xA8). IP (0xB8). SCON (0x98). Interrupts.

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Computer System Architecture Interrupt and Precise Exception

Computer System Architecture Interrupt and Precise Exception. Lynn Choi Dept. Of Computer and Electronics Engineering. Interrupts. Interrupts Forced transfer of control to a procedure ( handler ) due to external events ( interrupts ) or due to an erroneous condition ( exceptions )

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Interrupts

Interrupts. ELEC 330 Digital Systems Engineering Dr. Ron Hayne Images Courtesy of Ramesh Gaonkar and Delmar Learning. Basic Concepts of Interrupts. An interrupt is a communication process set up in a microprocessor or microcontroller in which:

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Interrupts

Interrupts. Chapter 8 – pp 209-214 Chapter 10 – pp 258-264 Appendix A – pp 537 & 543-545. Interrupts & Exceptions. Interrupts: - Asynchronous external requests for service (think device, like keyboard or printer, needs service).

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Introduction to Interrupts

Introduction to Interrupts. COE 205 Computer Organization and Assembly Language Dr. Aiman El-Maleh College of Computer Sciences and Engineering King Fahd University of Petroleum and Minerals. Outline. Introduction Interrupts vs. Procedures A Taxonomy of Interrupts Software Interrupts

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COMP201 Computer Systems Exceptions and Interrupts

COMP201 Computer Systems Exceptions and Interrupts. Outline Part1. Why have exceptions? What are exceptions and interrupts? The exception handler Device support for interrupts. Polled I/O. loop: Get device status Test status If not ready go to loop

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Real Time Interrupts

Real Time Interrupts. Section 4.15. Real-Time Interrupt (RTI). Most operating systems (OS) require an interrupt every T seconds by the RTI RTI interrupts are often counted to determine time and date (XP, LINUX) OS use RTI interrupts for process scheduling

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Interrupts, Buses

Interrupts, Buses. Chapter 6.2.5, 8.2-8.3. Introduction to Interrupts. Interrupts are a mechanism by which other modules (e.g. I/O) may interrupt normal sequence of processing Four general classes of interrupts Terms: Traps when initiated by system, Interrupt when initiated by programmer

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Chapter 5: Procedures and Interrupts

Chapter 5: Procedures and Interrupts. Slides to Accompany Assembly Language for Intel-Based Computers, Third Edition. Overview. Stack Operations (PUSH and POP) Procedures Procedure Parameters Software Interrupts MS-DOS (INT 21h) Function Calls BIOS Keyboard Input (INT 16h)

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Chapter 12: Interrupts

Chapter 12: Interrupts. Interrupt Pins In Intel x86 microprocessors INTR and NMI (non-maskable) for interrupt request INTA for interrupt acknowledge Software Interrupts Instructions INT n, INTO, INT 3, BOUND, IRET Two flag bits used with interrupt instructions

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Chapter 11 Multiple interrupts

Chapter 11 Multiple interrupts. CEG2400 - Microcomputer Systems. http://www.nxp.com/acrobat_download/usermanuals/UM10120_1.pdf. Overview. To demonstrate multiple interrupts timer_int_demo1.c Control the on/off of the green LED by a switch.

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OBJECTIVES this chapter enables the student to:

OBJECTIVES this chapter enables the student to:. Explain how the x86 executes interrupts by using the interrupt vector table and interrupt routines. List the differences between interrupts and CALL instructions. Describe the differences between hardware and software interrupts.

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Interrupts

Interrupts. Module M17.3 Sections 11.3, 14.1. Interrupts. Software Interrupts Hardware Interrupts. Software Interrupts. BIOS Calls Keyboard -- INT 16H Video I/O -- INT 10H Serial I/O -- INT 14H Printer I/O -- INT 17H Time of day -- INT 1AH Timer tick -- INT 1CH DOS Calls

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COMP3221: Microprocessors and Embedded Systems

COMP3221: Microprocessors and Embedded Systems. Lecture 15: Interrupts I http://www.cse.unsw.edu.au/~cs3221 Lecturer: Hui Wu Session 2, 2005. Overview. Interrupt System Specifications Multiple Sources of Interrupts Interrupt Priorities Polling. Five Components of any Computer.

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