The group of bits 10110111 is serially shifted (rightmost bit first) into an 8-bit parallel output shift register with an initial state 11110000. After two clock pulses, the register contains ____________
Answer & step-by-step solution
A serial-in/parallel-out register accepts one incoming bit per clock. With the rightmost bit transmitted first, perform two serial shifts from the stated initial register contents; the answer follows from those two state transitions.
Concept & Reasoning
The phrase 'rightmost bit first' fixes the transmission order. Each clock causes the existing register contents to move one position while one new serial bit enters. Only two of the eight incoming bits have entered after two pulses, so most of the initial state is still present. This is why stepwise register tracing is essential.
How to Solve It in the Exam
Write the first two transmitted bits explicitly before shifting.
Important Exam Point
Check whether the serial stream is LSB-first or MSB-first before the first clock.
Quick Trick
Write the first two transmitted bits explicitly before shifting.
Common Mistake
Reading 10110111 left-to-right despite the instruction 'rightmost bit first'.
बिट समूह 10110111 को (सबसे दायाँ बिट पहले) प्रारंभिक अवस्था 11110000 वाले 8-बिट पैरेलल आउटपुट शिफ्ट रजिस्टर में सीरियल रूप से शिफ्ट किया जाता है। दो क्लॉक पल्स के बाद रजिस्टर में ____________ होगा।
उत्तर और चरणबद्ध हल
सीरियल-इन/पैरेलल-आउट रजिस्टर प्रति क्लॉक एक बिट स्वीकार करता है। सबसे दायाँ बिट पहले भेजते हुए, दी गई प्रारंभिक अवस्था से दो सीरियल शिफ्ट कीजिए; उत्तर इन्हीं दो अवस्था परिवर्तनों से मिलता है।
विस्तृत हल (मूल भाषा में)
Concept & Reasoning
The phrase 'rightmost bit first' fixes the transmission order. Each clock causes the existing register contents to move one position while one new serial bit enters. Only two of the eight incoming bits have entered after two pulses, so most of the initial state is still present. This is why stepwise register tracing is essential.
How to Solve It in the Exam
Write the first two transmitted bits explicitly before shifting.
Important Exam Point
Check whether the serial stream is LSB-first or MSB-first before the first clock.
Quick Trick
Write the first two transmitted bits explicitly before shifting.
Common Mistake
Reading 10110111 left-to-right despite the instruction 'rightmost bit first'.
બિટ સમૂહ 10110111 ને (સૌથી જમણો બિટ પહેલાં) પ્રારંભિક અવસ્થા 11110000 ધરાવતા 8-બિટ પેરેલલ આઉટપુટ શિફ્ટ રજિસ્ટરમાં સીરિયલ રીતે શિફ્ટ કરવામાં આવે છે. બે ક્લોક પલ્સ પછી રજિસ્ટરમાં ____________ હશે.
જવાબ અને પગલાવાર ઉકેલ
સીરિયલ-ઇન/પેરેલલ-આઉટ રજિસ્ટર પ્રતિ ક્લોક એક બિટ સ્વીકારે છે. સૌથી જમણો બિટ પહેલાં મોકલતાં આપેલ પ્રારંભિક અવસ્થાથી બે સીરિયલ શિફ્ટ કરો; જવાબ આ બે અવસ્થા ફેરફારો પરથી મળે છે.
વિગતવાર ઉકેલ (મૂળ ભાષામાં)
Concept & Reasoning
The phrase 'rightmost bit first' fixes the transmission order. Each clock causes the existing register contents to move one position while one new serial bit enters. Only two of the eight incoming bits have entered after two pulses, so most of the initial state is still present. This is why stepwise register tracing is essential.
How to Solve It in the Exam
Write the first two transmitted bits explicitly before shifting.
Important Exam Point
Check whether the serial stream is LSB-first or MSB-first before the first clock.
Quick Trick
Write the first two transmitted bits explicitly before shifting.
Common Mistake
Reading 10110111 left-to-right despite the instruction 'rightmost bit first'.
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