Verwys na die blokdiagram in FIGUUR 5.1 hieronder en antwoord die vrae wat volg - NSC Electrical Technology Digital - Question 5 - 2021 - Paper 1
Question 5
Verwys na die blokdiagram in FIGUUR 5.1 hieronder en antwoord die vrae wat volg.
5.1.1 Identifiseer die blokdiagram in FIGUUR 5.1.
5.1.2 Identifiseer komponent X.
5... show full transcript
Worked Solution & Example Answer:Verwys na die blokdiagram in FIGUUR 5.1 hieronder en antwoord die vrae wat volg - NSC Electrical Technology Digital - Question 5 - 2021 - Paper 1
Step 1
Identifiseer die blokdiagram in FIGUUR 5.1.
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Die blokdiagram in FIGUUR 5.1 is 'n mikrobeheerder.
Step 2
Identifiseer komponent X.
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Komponent X is die Ander Data Invoer (I/U).
Step 3
Skryf die afkorting ETG volledig uit.
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ETG staan vir Externe Tegniese Geheue.
Step 4
Verduidelik die funksie van die ETG.
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Die funksie van die ETG is om data te verskaf wat van buite die mikrobeheerder kom en die stoor van hierdie data moontlik te maak.
Step 5
Verduidelik die term diskrete logika.
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Diskrete logika vermeerder die gebruik van afsonderlike logiese poorte om komplekse funksies te implementeer, met 'n definisie van waarheidstabelle.
Step 6
Verduidelik die term geintegreerde logika.
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Geintegreerde logika bestaan uit 'n enkele verwerker met 'n verskeidenheid logiese funksies wat op 'n enkele chip vasgelê is.
Step 7
Noem EEN tipe enkeldoelregister.
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EEN tipe enkeldoelregister is 'n Geheue Data Register (GDR).
Step 8
Beschryf die funksie van 'n akkumulator.
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Die akkumulator stoor die resultate van rekenskappe en kan ook gebruik word om tussenresultate te bereken.
Step 9
Beskryf die funksie van dieselsbus (koppelbus).
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Die funksie van dieselsbus is om data tussen verskillende komponente van die mikrobeheerder te kommunikeer, soos die prosessor en geheue.
Step 10
Noem die DRIE busse in 'n mikrobeheerder.
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Die drie busse in 'n mikrobeheerder is die data bus, adres bus en bestuur bus.
Step 11
Noem TWEE voordele van synchronie kommunikasie wanneer dit met asynchrone kommunikasie vergelyk word.
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Omgarantiseerde dataverlies.
Verhoogde spoed van data-oordrag.
Step 12
Noem TWEE nadele van parallelle kommunikasie wanneer dit met seriële kommunikasie vergelyk word.
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Hoër koste van implementering.
Beperkte afstand van kommunikasie.
Step 13
Verduidelik die funksie van die universele asynchrone ontvanger/sender ('UART').
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'n UART is verantwoordelik vir die samesmelt van data- en kommunikasiesignale in 'n formaat wat die mikrobeheerder kan verwerk.
Step 14
Noem TWEE tipe kommunikasiearandoerstelling behalwe die universele asynchrone ontvanger ('UART').
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SPI (Serial Peripheral Interface).
I2C (Inter-Integrated Circuit).
Step 15
Logika '1' = minder as -200mV.
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Logika '1' is wanneer die spanning onder -200mV val, wat gebruik word om digitale toestande aan te dui.
Step 16
Logika '0' = groter as +200mV.
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Logika '0' dui aan wanneer die spanning groter as +200mV is, wat ook gebruik word in digitale stelsels.
Step 17
Identifiseer die volgende vloediagramsimbole in PICAXE: Program.
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Die program simbool in PICAXE is 'n reghoekige blok met die staan 'PROGRAM'.
Step 18
Identifiseer die volgende vloediagramsimbole in PICAXE: Vloediagram.
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Die vloediagram simbool in PICAXE is 'n parallelogram wat data of insette aandui.
Step 19
Identifiseer die volgende vloediagramsimbole in PICAXE: Foutsporing ('Debugging').
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Die foutsporing simbool in PICAXE is 'n reghoekige blok wat 'DEBUG' aandui.
Step 20
Bestuur die PICAXE-kring in FIGUUR 5.9 hieronder en ontwerp 'n vloediagram vir die kring.
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Die vloediagram sal 'n ketting van besluite en prosesse bevat, wat uiteindelik lei tot die aan/af skakelaar.
