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Module 2: The 8051 Architecture

20242m

A timing diagram shows:
(i) Logical output of program
(ii) Voltage transitions with respect to time
(iii) Machine code of instruction
(iv) Bus architecture

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Answer: (ii) Voltage transitions with respect to time

Explanation: A timing diagram plots logic levels (high/low) vs time, showing propagation delays, setup/hold times, bus cycles, clock phases, and signal transitions (e.g., ALE, PSEN, RD/WR). It does not show program logic or machine code directly.

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