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CONTROL CIRCUITS FOR GENERATING OUTPUT ENABLE SIGNALS, AND RELATED SYSTEMS AND METHODS
CONTROL CIRCUITS FOR GENERATING OUTPUT ENABLE SIGNALS, AND RELATED SYSTEMS AND METHODS
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机译:用于生成输出使能信号的控制电路以及相关系统和方法
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摘要
Control circuits for generating output enable signals are disclosed. In one aspect, a control circuit is provided that employs combinatorial logic to generate an output enable signal that meets timing constraints using a standard clock signal, a feedback clock signal based on the standard clock signal, and a single data rate (SDR) data output stream. The control circuit includes a double data rate (DDR) conversion circuit configured to generate a DDR output stream based on a received SDR output stream. The control circuit includes an output enable circuit configured to receive the standard clock signal, feedback clock signal, and DDR output stream, and to generate the output enable signal that is asserted and de-asserted according to the defined timing constraints. The control circuit is configured to generate an accurately timed output enable signal without the need for a fast clock signal in addition to the standard clock signal.
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