![]() ![]() When the FIFO is full, simultaneous load and extract is supported, but care must be taken as the upstream logic has no indication whether the data has been loaded or dropped without evaluating the extract signal. The status indications are implemented using a wrap-around bit in the pointers. The FIFO reset functionality is either synchronous or asynchronous and should be used according to the overall reset policy of the instantiating device. The generic synchronous FIFO for log2 depths is designed with a flip-flop memory array and a set of read pointer and write pointer. Load operations are ignored while FIFO is full ![]() Extract operations are ignored while FIFO is empty Indicates a FIFO entry is to be read, will be ignored when FIFO is empty Indicates the FIFO is to be written, will be ignored when FIFO is full and extract is de-asserted Active low reset signal, when asserted, pointers would return to zero and empty indication would be set ![]()
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