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    • 11. 发明授权
    • Programmable logic resource with data transfer synchronization
    • 可编程逻辑资源与数据传输同步
    • US07003423B1
    • 2006-02-21
    • US10741593
    • 2003-12-18
    • Malik KabaniHenry Lui
    • Malik KabaniHenry Lui
    • G01R27/28G01M19/00G06F1/04
    • G06F1/24G06F1/12
    • A more time-efficient and area-efficient approach is provided to synchronize the transfer of data into programmable logic resources. A programmable logic resource core clock and a reset signal are routed to a reset register that controls the reset of a dynamic phase alignment circuit and a data realigner. The dynamic phase alignment circuit includes a phase-locked loop circuit, a J counter, and a deserializer. When the output signal of the reset register transitions from logic 1 to logic 0, the J counter begins to count and sets an enable signal accordingly. The enable signal, which controls the output of synchronized parallel data from the deserializer, is therefore phase associated with the programmable logic resource core clock. The synchronized parallel data is input to a data realigner which outputs the data based on the programmable logic resource core clock for input to the programmable logic resource core circuitry.
    • 提供了一种更节省时间和面积效率的方法来同步数据传输到可编程逻辑资源。 可编程逻辑资源核心时钟和复位信号被路由到控制动态相位对准电路和数据重新定标器的复位的复位寄存器。 动态相位对准电路包括锁相环电路,J计数器和解串器。 当复位寄存器的输出信号从逻辑1转换到逻辑0时,J计数器开始计数并相应地设置使能信号。 因此,控制来自解串器的同步并行数据的输出的使能信号与可编程逻辑资源核心时钟相关。 同步并行数据被输入到数据重新定标器,该数据重新定标器基于可编程逻辑资源核心时钟输出数据,用于输入到可编程逻辑资源核心电路。