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Circuit for converting input serial data in a plurality of possible formats into output data in parallel format by interpreting input data format indication information
Circuit for converting input serial data in a plurality of possible formats into output data in parallel format by interpreting input data format indication information
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机译:通过解释输入数据格式指示信息将多种可能格式的输入串行数据转换为并行格式的输出电路
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摘要
A versatile serial to parallel interface capable of both receiving multiple types of input formats and operating in multiple operational modes includes a multiplexer, a signal generator, and a register. The multiplexer receives serial data from a plurality of possible data sources and, in response to a set of selection signals, outputs one of the sets of serial data to the signal generator. The signal generator thereafter forwards the serial data to the register for storage. In addition to forwarding the serial data to the register, the signal generator also generates clock and control signals. These signals are used to control the operation of the register to ensure proper serial to parallel conversion of the input serial data. In addition, these signals may also be provided to the source of the serial data to control the actions of the data source. The signal generator generates the clock and control signals in response to indication information provided to the signal generator. This indication information may include information relating to: (1) the desired mode of operation (e.g. slave or master) of the serial to parallel interface; and (2) the format (e.g. left justified or right justified) of the incoming serial data. This indication information gives the signal generator all of the information that it needs regarding the data source and the incoming data to generator all of the necessary signals for ensuring the proper operation of the serial to parallel interface.
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