a) Write a program in 8051 to copy the contents of registers R0 to R7 into internal RAM addresses40H to 47H respectively using PUSH instructions. Assume Register Bank 0 is selected.b)Observe the timing diagrams given in Fig. A and Fig. B below and identify the mode of operationwhen these kind of waveforms are produced on the OUT pin of the IC. Also, name the IC and explainthe mode during which the following output waveforms were produced. of ClockWrite Control WordWrite Count Value (03H)PulsesWR10CLK-ATE-OUT03 02 01 0302 01: 03 02 01 : 03XXXXXXXXCountCountCount ValueLoaded CountValueCountReloadedReloadedafter EachReloadedClock PulseFig. ANumberof ClockWrite Control WordWrite Count Value (06H)PulsesWR| 2 3 4 5 6 7 8 9 10o 11 12 13CLK.ATE.Count Valueafter EachOUTClock Pulsei 0604 02 06 04 02 0602 06 04 02 06XXXXXXXX04Loaded CountCountCountCountCountValueReloadedReloadedReloadedReloadedFig. B

Answered: Write a program in 8051 to copy the…

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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a) Write a program in 8051 to copy the contents of registers R0 to R7 into internal RAM addresses
40H to 47H respectively using PUSH instructions. Assume Register Bank 0 is selected.

b)Observe the timing diagrams given in Fig. A and Fig. B below and identify the mode of operation
when these kind of waveforms are produced on the OUT pin of the IC. Also, name the IC and explain
the mode during which the following output waveforms were produced.

of Clock
Write Control Word
Write Count Value (03H)
Pulses
WR
10
CLK-
ATE-
OUT
03 02 01 03
02 01: 03 02 01 : 03
XX
XX
XX
XX
Count
Count
Count Value
Loaded Count
Value
Count
Reloaded
Reloaded
after Each
Reloaded
Clock Pulse
Fig. A
Number
of Clock
Write Control Word
Write Count Value (06H)
Pulses
WR
| 2 3 4 5 6 7 8 9 10o 11 12 13
CLK.
ATE.
Count Value
after Each
OUT
Clock Pulse
i 06
04 02 06 04 02 06
02 06 04 02 06
XX
XX
XX
XX
04
Loaded Count
Count
Count
Count
Count
Value
Reloaded
Reloaded
Reloaded
Reloaded
Fig. B

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