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8086/8088 8259A ... 6.5 8259A PIC Programmable Interrupt Controller 8 ...
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... 21 PIC1 (master) 8259A 60 - 63 Keyboard controller 8042 70 ... AL Data from AL sent to port 378 Memory Map 00000-003FF 1K Interrupt Vectors A0000 ...
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For applications where we have interrupts from multiple source, ... Contd.. Priority of 8086 Interrupts 8259A Priority Interrupt Controller Contd..
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Separate address spaces. Need I/O or memory select lines. Special ... ISA Bus Interrupt System. ISA bus chains two 8259As together. Link is via interrupt 2 ...
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Interrupt Controller I/O Device Interrupt Line * Adding Interrupts to the Hardware Programmable Interrupt Controller: The 8259A chip Supports eight interrupt request ...
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... vectors, IDT, gates, PIC, APIC. Interrupt handling: data ... Possible to 'mask' interrupts at PIC or CPU. Early systems cascaded two 8 input chips (8259A) ...
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CH07 Input/Output External Devices I/O Modules Programmed I/O Interrupt-Driven I/O Direct Memory Access I/O Channels and Processor The External Interface: SCSI and ...
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William Stallings Computer Organization and Architecture Chapter 6 Input/Output Input/Output Problems Wide variety of peripherals Delivering different amounts of data ...
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8086 Interrupt Mechanism NMI (Non-Maskable Interrupts) - Only one (Power Failure - int 2) - Interrupt Handle Code is addressed at 0000:0008 Special Interrupts ...
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Title: 18 Author: kj Last modified by: kj Created Date: 2/24/2006 8:12:17 AM Document presentation format: Company
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Title: Author: hpeng Last modified by: PH Created Date: 4/24/2005 7:38:35 AM Document presentation format:
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William Stallings Computer Organization and Architecture 8th Edition Chapter 7 Input/Output
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William Stallings Computer Organization and Architecture 8th Edition Chapter 7 Input/Output Input/Output Problems Wide variety of peripherals Delivering different ...
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Daisy chain. Arrangement of Priority groups. Interrupt Nesting. Processor. Device 1. Device 2 ... Daisy Chain or Hardware poll. Interrupt Acknowledge sent down a chain ...
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A series of 9-bit values is sent to the PIC. Once it's begun, it must be completed ... Initializing the master PIC. Write a sequence of four command-bytes ...
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Interrupt Acknowledge sent down a chain. Module responsible places vector on bus ... If bus mastering only current master can interrupt. 26. Example - PC Bus ...
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FireWire, InfiniBand IEEE 1394 FireWire High performance serial bus Fast Low cost Easy to implement Also being used in digital cameras, ...
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A bus connects all the internal computer components to the CPU and Main memory. ... and clock speed must be set using jumpers and switches on the card itself. ...
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Title: Input/Output Author: Steve Armstrong Last modified by: Carlos Andr Guimar es Ferraz Created Date: 11/30/2000 12:42:29 AM Document presentation format
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optimistically. 10 MIP processor. completely. saturates the bus! CS621 ?????????????????????? ... Wide variety of peripherals. Delivering different amounts of ...
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Intel has reserved interrupt-numbers 0-31 for the processor's various exceptions ... The interrupt-conflicts seldom arise while the processor is executing in Real-Mode ...
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... introduction to reprogramming of ... Each 9-bit values is called an Initialization Command Word (abbreviated ICW) ... This document is 24 pages in .pdf format ...
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5 5.1 5.2 5.3 i/o 5.4 5.5 5.6 dma
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Two mechanical switch designs and the logical layout of a hex keypad. Pointing Devices ... If bus mastering only current master can interrupt. Example - PC Bus ...
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Input/Output Input/Output Problems Wide variety of peripherals Delivering different amounts of data At different speeds In different formats All slower than CPU and ...
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... 0FFFEH ;Port control address. OUTPUT_MODE EQU 0B5H ;Set up mode for port ... 8253 Setup. COUNT_CNTR EQU 000EH ;counter control register address. MODE2 EQU 74H ; ...
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Wide variety of peripherals (external devices) Delivering different ... Test - check status. e.g. power? ... being used in digital cameras, VCRs and TV ...
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Title: 07 Input Output Author: Adrian J Pullin Last modified by: Joy Rosales Created Date: 9/21/1998 3:10:09 PM Document presentation format: On-screen Show (4:3)
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Title: PowerPoint Author: mwz2 Last modified by: muz Created Date: 1/18/2003 12:58:36 AM Document presentation format: Company
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BIOS and DOS Interrupts Basic Input /Outpu System Disk Operating System Computer Interrupt Interrupt request: a signal that immediate attention is needed Interrupt ...
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Proiectarea Microsistemelor Digitale Curs 10
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1 : : : , , : , ...
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Title: 8 . Last modified by: Created Date: 9/1/2004 1:32:40 AM Document presentation format: (4:3)
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Title: PowerPoint Presentation Created Date: 1/1/1601 12:00:00 AM Document presentation format: On-screen Show (4:3) Other titles: Comic Sans MS Arial ...
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Before process p resumes execution in user mode, kernel checks for ... Process first executes signal handler in user mode before resuming 'normal' execution. ...
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Organisasi dan Arsitektur Komputer I Pertemuan ke - 10 Bab 3.2. Unit Masukan dan Keluaran Oleh : I Wayan Supardi, S.Si.,M.Si Tujuan Menjelaskan system komputer unit ...
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The transistor was invented at Bell Labs in 1948 by John Bardeen, Walter ... In the first addition, there is a carry out of the leftmost bit position (throw ...
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... produced by the execution of an instruction. such as divide by ... Can also serve as an arbitrator in the case when multiple interrupts arrive at the same time ...
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Cosc 3P92 Week 3 Lecture s An intelligence test sometimes shows a man how smart he would have been not to have taken it. Laurence J. Peter US educator & writer ...
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The short diagonal lines indicate that multiple pins are used. ... 40 pin package. 8 bit data bus. 4 or 8 KB of internal ROM. The ISA Bus ...
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... be needed for multiple devices on a single port (e.g., serial port versus USB) ... Transmit enable (TE) Set to one in order to enable serial output ...
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Interfacing the ADC to the IBM PC. DAS (Data Acquisition Systems) How to select ... Video, Radar, Digital Oscilloscope. Single Step Conversion. 2n 1 comparator ...
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Shifter. Ripple carry adder. Constructed from full-adders ... Zero-fill shifter. Set C = 1 to shift right and C = 0 to shift left. 35. Ripple carry adder ...
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... with leading-edge organizational tools and practices ... Snap-on Diagnostics. SonoSite, Inc. Space Dynamics Laboratory. Sparta, Inc. ... CAST Customers ...
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Understanding Linux Kernel - Booting, Syscalls, Interrupts & Context Switching By Jayant Upadhyay 2003CS50214 Pankaj K. Sharma 2003CS50219 Sohit Bansal 2003CS50224
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Computer Architecture Welcome to the KKK4504 class Dr. Abd Rahman Ramli Main Component of Lecture: The Computer System The Central Processing Unit
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Most exceptions issued by the CPU are interpreted by Linux as error conditions. ... fault' exception denotes a serious kernel misbehavior, the exception handler ...
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4. BIOS loads boot loader from first sector of disk (MBR) into ... CPU has a register, idtr, pointing to IDT, initialized by OS via the LIDT instruction at boot ...
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In some processors, an interrupt is also known as a TRAP. ... The only thing that is constant is the location and function of the vector table. ...
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... and hence that instruction can be resumed when the exception handler terminates. ... 'Page Fault Exception Handler' in Chapter 9, resuming the same instruction ...
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Intel microprocessor manuals designate synchronous and asynchronous interrupts ... The most frequent job of the device driver is reading and writing I/O ports. ...
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Module transfers data via buffer from/to device ... I/O module interrupts ... How do you identify the module issuing the interrupt? How do you deal with ...
FireWire Configuration. Daisy chain. Up to 63 devices on single port ... FireWire Subactions. InfiniBand. I/O specification aimed at high end servers ...
CPU checks I/O module device status. I/O module returns status ... Isochronous. Variable amount of data in sequence of fixed size packets at regular intervals ...
If interrupted, send ack to requesting device ... ACK. Vector. Interrupt interface (Priority CKT) CPU. Priority Handling CKT. D1. D3. D2. Data bus ...
I/O module does not inform CPU directly. I/O module does not interrupt CPU ... This may be indirect (instead of using to code to figure out the service routine ...
