Locke Lord LLP
First in and first out apparatus and driving method thereof
A FIFO apparatus includes write registers, a first control circuit, a multiplexer, and a second control circuit. The write registers are for receiving an input signal and the first clock signal, and outputting first outputs to a multiplexer. The first control circuit is for receiving a first clock signal, generating a first toggling pulse, and enabling the write registers according to a sequence. The second control circuit is for controlling the multiplexer according to the first toggling pulse and a second clock. The multiplexer outputs a second output according to the sequence. The first and second clock signals have a first delay time and a second delay time, respectively. Difference between the first and second delay times is equal to M cycle(s) of the first clock signal, and a number of the write registers is equal to or larger than M.
REALTEK SEMICONDUCTOR CORPORATION
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G06F G06F H04L
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Po-Hsien Huan-Wen Li-Yu
Wu Chen Chen