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Q.3: If 82C55 shown in Figure below is configured as follows: PA as input, PB as output, and PC as output and all ports in mode-0. a- Find the port address assigned to A, B, C, and control register. b- Find the control byte (word) for this configuration. c- Write a program to input the data from PA and find X & Y, then sent the result of X to port B and the result of Y to port C. X = A -5, Y = A + 2 DO DO D7 07 Write signal. Read signal WR RD B CL A0 A1 A7 A1 CU A15 CS tt 82CSSA

Q.3: If 82C55 shown in Figure below is configured as follows: PA as input, PB as output, and PC as output and all ports in mode-0. a- Find the port address assigned to A, B, C, and control register. b- Find the control byte (word) for this configuration. c- Write a program to input the data from PA and find X & Y, then sent the result of X to port B and the result of Y to port C. X = A -5, Y = A + 2 DO DO D7 07 Write signal. Read signal WR RD B CL A0 A1 A7 A1 CU A15 CS tt 82CSSA

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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Q.3: If 82C55 shown in Figure below is configured as follows: PA as input, PB as output, and PC as output and all ports in mode-0. a- Find the port address assigned to A, B, C, and control register. b- Find the control byte (word) for this configuration. c- Write a program to input the data from PA and find X & Y, then sent the result of X to port B and the result of Y to port C. X = A – 5, Y = A + 2 DO DO D7 07 Write signal Read signal WR RD CL AO A1 AO A1 A7 CU A15- CS 82C5SA
Transcribed Image Text:Q.3: If 82C55 shown in Figure below is configured as follows: PA as input, PB as output, and PC as output and all ports in mode-0. a- Find the port address assigned to A, B, C, and control register. b- Find the control byte (word) for this configuration. c- Write a program to input the data from PA and find X & Y, then sent the result of X to port B and the result of Y to port C. X = A – 5, Y = A + 2 DO DO D7 07 Write signal Read signal WR RD CL AO A1 AO A1 A7 CU A15- CS 82C5SA
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