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请输入英文单字，中文词皆可：

synchronizer    
n. 同步装置,同时闪光装置,同步闪光装置

同步装置,同时闪光装置,同步闪光装置

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  • How does the second flip-flop in a naive synchronizer prevent a . . .
    In this very nice answer it's explained that, fundamentally, a two flip-flop synchronizer's basic operation is to prevent the propagation of a metastable state (effectively, an invalid logic level)
  • fpga - vhdl reset synchronizer - Electrical Engineering Stack Exchange
    The sync_process should use the reset_sync signal to reset, because the reset signal can go low and high again between two rising edges of the clk, and the process wouldn't notice Assuming you meant that, the two mechanisms are largely equivalent, the synchronous process leaves reset one cycle later though The reset_synchronizer makes sure the reset_sync signal is asserted for at least one
  • Timing Async Reset with Sync Deassert - Electrical Engineering Stack . . .
    For my design, it seems like the best solution is to use asynchronous resets, but with a reset synchronizer circuit to make the de-assert of the reset synchronous In this scenario, even though the flip flops are wired async, because the de-assert in synchronous, the reset is still subject to timing constraints
  • intel fpga - 2DFF synchronizer output was determined to be a clock by . . .
    Below is my RTL picture: More information for the 2DFF synchronizer : OK, here comes the problem When I use Timing Analyzer to deal with the timing constraints, the system always gives me a warning like this: Warning (332060): Node: synchronizer:S1|DFF_SYNC:D2|Q was determined to be a clock but was found without an associated clock assignment
  • fpga - timing constraint for bus synchronizer circuits - Electrical . . .
    I've a bus synchronizer circuit for passing a wide register across clock domains I'll provide a simplified description, omitting asynchronous reset logic The data is generated on one clock Up
  • How does 2-ff synchronizer ensure proper synchonization?
    Using 2-ff synchronizers has been a standard for a signal to cross clock boundaries And there are lots of paper figures illustrating the mechanism, such as this one: It seems bclk can only sample
  • Why dont 2 flip-flop synchronizers have a reset?
    Your final sentence describes a reset synchronizer, which is a different circuit from a 2 flip-flop synchronizer Therefore, I don't feel that this answers my question (s)
  • Synchronization of handshake channel with different clock domains
    My course on design of digital systems uses the book " Introduction to Asynchronous Circuit Design " by Jens Sparsø On page 156 he talks about synchronizing a handshake protocol between a transmitter and a receiver that have different clock domains This is done by placing DFF's synchronized locally in the request and acknowledgement signal paths as seen below He also emphasizes that it is
  • Is it possible to use a 2 flip-flop synchronizer for reset?
    This delay would obviously break a requirement for the synchronizer output to reset the design immediately on assertion of the reset at the synchronizer input My question is for the scenario where the requirements allow a delay of several clock cycles Is it still necessary to use a reset synchronizer instead of a 2 FF synchronizer?





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