这里介绍了一种基于指令模块的主控器体系结构，它的指令集的选择依照边界扫描规范并从中提取出最基本的控制方式，具有指令扩展功能。
We practiced a special structure of a BSM based on the instruction expanded design. The instruction set was chosen carefully by studying the Boundary Scanning test standard.
分别介绍了主控制器电路、串口扩展电路、RS - 485集成收发器等的设计方法，以及电路芯片的选取。
The design methods of main controller circuit, serial port expanding circuit, RS-485 integrated transceiver, etc., are introduced as well as their chips.
应用推荐