详述了多串口扩展通信子板设计方案,选用PC/104并口总线通过并/串转换器TL16C554实现4个串口的扩展设计,介绍了TL16C554的内部结构及外部特性,给出了扩展模块并进行了分析说明。
- Abstract:
- The design of the extending a daughter board of multi-serial port is described,in which the LPT/COM converter TL16C554 is selected to extend 4 serial ports by connecting to the PC/104 bus. The construction and features of TL16C554 is analyzed, and the extension circuit is also given.?
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