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METHOD, SYSTEM AND SYNCHRONIZATION CIRCUIT FOR PROVIDING HARDWARE COMPONENT ACCESS TO A SET OF DATA VALUES WITHOUT RESTRICTION
METHOD, SYSTEM AND SYNCHRONIZATION CIRCUIT FOR PROVIDING HARDWARE COMPONENT ACCESS TO A SET OF DATA VALUES WITHOUT RESTRICTION
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机译:用于无限制地向一组数据值提供硬件组件访问的方法,系统和同步电路
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摘要
The present invention provides hardware-based synchronization within a device such as a set top box so that sets of data values can be communicated between a set of DCR registers operating at a first frequency and a set of clock register operating at a second frequency. Specifically, to communicate an initial set of data values from the set of DCR registers to the set of clock registers, a control signal is stretched and then synchronized with a clock signal having the second frequency. To communicate a current set of data values from the set of clock registers to the set of DCR registers, the control signal is synchronized with a clock signal having the first frequency. By communicating the current set of data values to the first set of registers, a hardware component (e.g., a CPU) can access the current set of data values without restriction.
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