Terminology in sequential logic — what does “resetting” a flip-flop or latch mean? Choose the common action term that is synonymous with putting the device into its reset state.

Difficulty: Easy

Correct Answer: clearing

Explanation:


Introduction / Context:
Consistent terminology prevents confusion when reading datasheets and communicating design intent. In sequential logic, multiple words may describe the same control action, and knowing the standard synonyms speeds collaboration and troubleshooting.



Given Data / Assumptions:

  • A flip-flop or latch can be forced to a known state by control inputs labeled RESET, CLEAR, PRESET, or SET (names vary by vendor).
  • “Resetting” typically means driving Q to 0 (while presetting means driving Q to 1).
  • We seek the conventional word that matches “resetting.”


Concept / Approach:
Industry usage treats “reset” and “clear” as near-synonyms when Q is forced LOW. Devices may label the control pin as CLR, RST, or RESET̅ (active-LOW). Therefore, “clearing” is the standard action term corresponding to resetting the device to zero.



Step-by-Step Solution:

Define reset: force Q=0, typically via asynchronous input.Match common synonyms: “clear” ≈ “reset” (to zero).Select “clearing” as the term synonymous with resetting.


Verification / Alternative check:

Survey datasheets: pins labeled CLR, /CLR, RST, or /RST perform the reset/clear function.


Why Other Options Are Wrong:

breaking / freeing / changing: These do not carry standard, precise meanings in this context.


Common Pitfalls:

Confusing “preset” (set to 1) with “reset/clear” (set to 0).Assuming reset is always asynchronous; some designs implement synchronous clear.


Final Answer:

clearing

More Questions from Flip-Flops

Discussion & Comments

No comments yet. Be the first to comment!
Join Discussion