| 摘要 |
PURPOSE: A de-interleaving circuit of a grand alliance HDTV(High Definition Television) is provided to apply change of a memory allocation according to the progress of time such as a convolutional type when performing the de-interleaving, thereby removing an unnecessary occupying period and using the memory effectively. CONSTITUTION: An address control member(100) is synchronized by a received data frame SYNC(SYNChronization) signal and data SYNC signal, transmits the received data according to a VSB(Vestigial SideBand) mode and also designates an inherent memory of a memory bank(200). When the address control member designates the inherent memory through a logical combination of a write enable signal and a read enable signal, the memory bank stores/outputs data transmitted from the address control member to/from the memory. A multiplexer(300) is enabled by the logical combination of a read enable signal of the address control member and read address signals and outputs finally the output signal of the memory bank.
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