… but the reset is implemented in (extra) logic, which may add latency.In ASIC technology, smaller flip-flops may be used….Synchronous resets are predictable (at the clock edge).
The choice between a synchronous or asynchronous reset depends on the nature of the logic being reset and the project requirements.Īdvantages and disadvantages of synchronous resets include: A synchronous reset activates on the active clock edge when the reset signal is asserted. An asynchronous reset activates as soon as the reset signal is asserted. A reset is either asynchronous or synchronous. Resets are designed in synchronous (clocked) parts of the design. The concepts discussed in this article are equally valid in other design languages e.g. This article focuses on how to design resets for synchronous digital circuits in VHDL. In digital design, resets are used to bring a circuit into a predefined state after power-up.
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