为许多通讯应用提供速度,精确度和适应性的一个可编程序数字信号处理器的集成电路将要进行讨论。从功能上来说,这是一个特殊目的微型计算机。对于包括滤波,检波和调制的实时信号处理功能来说,它的指令集和运算以及寻址能力是最佳的。在一个800毫微秒的机器周期内,处理器可以择码一条指令,取出数据和完成一个16位×20位的乘法以及一个全部36位乘积的累加。因此,如此应用的信号处理功能像双音调多频率接收机或具有单一器件的低速数据调制解调器是有用的。对于许多声音-等级应用,处理器的运算精确度同样是足够的,在许多仅需要外部谐振器或时钟的应用中,数字信号处理器可以按单独方式工作。但是,它容易同微处理机和其它器件接口以便获得较高程度的信号处理能力。很适应的和分开的串行输 An integrated circuit of a programmable digital signal processor that provides speed, accuracy and adaptability to many communications applications will be discussed. Functionally, this is a special purpose microcomputer. Its instruction set and arithmetic and addressing capabilities are optimal for real-time signal processing including filtering, detection and modulation. During a machine cycle of 800 nanoseconds, the processor can optionally code an instruction to fetch data and perform a 16-bit by 20-bit multiplication and an accumulation of all 36-bit products. Therefore, the signal processing functions thus applied are useful like dual tone multi-frequency receivers or low-speed data modems with a single device. For many sound-level applications, the processor’s computational accuracy is also sufficient, and in many applications requiring only external resonators or clocks, the digital signal processor can operate alone. However, it is easy to interface with microprocessors and other devices for a high degree of signal processing. Very suitable and separate serial transmission