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在本论文中将报告一个单片声频带数字信号处理器,它组成作为一个高速微处理机,微处理机包含一个程序ROM,一个RAM一个数据ROM和在片内的一个并行乘法器。这装置获得高级的数字信号处理的能力,在一块单片上具有所有需要的功能快。另外,仅仅靠改变ROM程序就可以改变编成各种信号处理应用。 为了完成复杂的实时数据处理,信号处理器是需要的。在有规则的取样周期内,数据处理包括对于每个取样数据的许多乘法。例如,由二级(second order)数字滤波器部分组成的声频带信号处理器必须执行四次乘法,四次加法和在每个取样周期的某些125微秒之内执行两次移动,移动次数像滤波器级
In this paper, a monolithic audio band digital signal processor will be reported, which is composed as a high-speed microprocessor. The microprocessor includes a program ROM, a RAM, a data ROM and a parallel multiplier within the chip. The ability of this device to acquire advanced digital signal processing has all the required functionality on a single chip. In addition, just by changing the ROM program can be changed into a variety of signal processing applications. Signal processors are needed to accomplish complex real-time data processing. During a regular sampling period, the data processing includes many multiplications for each sample of data. For example, an audio band signal processor consisting of a second order digital filter section must perform four multiplications, four additions and two shifts within some 125 microseconds of each sampling period, the number of shifts Like the filter stage