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    • 72. 发明授权
    • Digital signal processor with selective sound operation
    • 具有选择性声音操作的数字信号处理器
    • US5754874A
    • 1998-05-19
    • US322353
    • 1994-10-13
    • Kazuo WatanabeMakio Yamaki
    • Kazuo WatanabeMakio Yamaki
    • G06F9/308G06F17/10G10K15/12H03H17/02H04S3/02G06F13/00
    • H04S3/02
    • A digital signal processor (DSP) comprises a condition flag register directly accessible by the control microcomputer. Referring to a condition flag of the condition flag register every sampling period of the DSP, the DSP can change the content of a process every sampling period in accordance with the set status of the condition flag. The DSP sets the condition flag in the condition flag register at the beginning of a sampling period of the DSP by a set instruction, and resets the condition flag at the end of a sampling period by a reset instruction. The DSP may be modified to automatically reset the condition flag at the end of the sampling period in which the condition flag has been set.
    • 数字信号处理器(DSP)包括可由控制微计算机直接访问的条件标志寄存器。 参考DSP的每个采样周期的条件标志寄存器的条件标志,DSP可以根据条件标志的设置状态改变每个采样周期的处理内容。 DSP通过设置指令在DSP的采样周期开始时在条件标志寄存器中设置条件标志,并在采样周期结束时通过复位指令复位条件标志。 可以修改DSP,以便在设置了条件标志的采样周期结束时自动复位条件标志。