Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Illustrate about 8259
8259A adds 8 vectored priority encoded interrupts to the microprocessor. We can expand it to 64 interrupt requests by using one master 8259A and 8 slave units. CS and WR should be decoded. Other connections are direct to microprocessor.
Pins D7 - D0: the bidirectional data connection, IR7 - IR0: Interrupt request, used to request an interrupt and connect to a slave in a system with multiple 8259A.
WR:-Connects to a write strobe signal (upper or lower in a 16 bit system), RD: - Connects to IORC signal, INT: - Connects to INTR pin on the microprocessor from the master and is connected to an IR pin on a slave and INTA: - Connects to INTA pin on the microprocessor. In a system only master INTA signal is connected A0:- Selects different command words with in the 8259A, CS: - Chip select - enables 8259A for programming and control, SP/EN: - Slave Program (1 for master, 0 for slave)/Enable Buffer (controls data bus transceivers in a large microprocessor based system when in buffered mode) and CAS2-CAS0:- Used as outputs from the master to slaves in cascaded systems.
Figure: 8259 Block Diagram
Representation in Prolog - Logic Programs : Artificial intelligence If we impose some more constraints on first order logic, then we get to a representation language known as l
Create a relationship among Employee and Sales tables using Emp No. Enforce referential integrity and select both cascade update and cascade delete options. Save the relationship.
Let's provide you a fundamental illustration by which you may be able to define the concept of instruction format. Let us consider the instruction format of a MIPS computer. MI
Q. Instruction set for IA - 64 architecture? Instruction set: Architecture gives instructions for multimedia operations as well as floating point operations. Itanium supports
A device which converts BCD to Seven Segment is called ? Ans. DECODER is a device that converts BCD to Seven Segment. This coverts binary words in alphanumeric characters.
third partial product of 13*11 in binary
Convert the decimal number 45678 to its hexadecimal equivalent number. Ans: (45678) 10 =(B26E) 16 (45678) 10 =(B26E) 16
The illustration of the mouse on-screen. Depending on your settings, the cursor can be many dissimilar things.
what is hashing
Task 1: Methodologies are 'regarded as a recommended series of steps and procedures to be followed in the course of developing an information system' and were introduced to im
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd