IC芯片有面向存储与面向逻辑的设计。由于面向逻辑的不规则性.带来了VLSI设计中的复杂性。实现IC芯片的工艺技术,有双极与MOS两大方面。由于MOS的集成度高,许多VLSI芯片的设计风格都是围绕MOS电路发展起来的。经验表明,处理器的结构是非常灵活、而且很适合于实现复杂的逻辑功能的,因此,大多数面向逻辑的VLSI芯片都采用了处理器的结构。典型的例子有:微处理器、外部控制器、信号处理器、图示处理器、以及通讯芯片等。处理器芯片的设计一般是以自顶向下的层次方式进行的。但是,处理 IC chips have a storage-oriented and logic-oriented design. Due to the logic-oriented irregularities, it brings the complexity of VLSI design. IC chip technology to achieve bipolar and MOS two major aspects. Due to the high integration of MOS, many VLSI chip design styles are developed around the MOS circuit. Experience has shown that the processor architecture is very flexible and well suited to the implementation of complex logic functions, so most VLSI silicon logic-oriented processor architecture. Typical examples are: microprocessors, external controllers, signal processors, graphics processors, and communication chips. The design of the processor chip is generally carried out in a top-down hierarchy. However, deal with