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文章分析了可配置成多机系统的嵌入式微处理器中的总线接口单元的结构。文章首先详细分析了这种情况下总线接口单元的控制通路。然后从采用格雷方式FSM编码、FSM有效描述和接口信号的正确描述三个方面讨论该部件的高效实现。
The article analyzes the structure of a bus interface unit in an embedded microprocessor that can be configured as a multi-machine system. The article first detailed analysis of the bus interface unit control path in this case. Then the efficient implementation of this part is discussed from the aspects of using Gray mode FSM coding, valid description of FSM and correct description of interface signals.