H.W 2: Write a piece of assembly code that can program PPI 8255 as port A as I/P,Port B as O/P,port CL as I/P and Port CH as O/P (your program should read Data from Port A then send it to Port B ,read Data from Port C lower then send it to Port Cupper,)if you know that command register in addresses by 4FF7H and PPI A0 is connected to A0 ,PPI A1 is connected to A1.
H.W 2: Write a piece of assembly code that can program PPI 8255 as port A as I/P,Port B as O/P,port CL as I/P and Port CH as O/P (your program should read Data from Port A then send it to Port B ,read Data from Port C lower then send it to Port Cupper,)if you know that command register in addresses by 4FF7H and PPI A0 is connected to A0 ,PPI A1 is connected to A1.
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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