一、I/O接口概述 二、定时/计数器——8253 三、并行接口——8255A 四、串行接口——8251A

8-1 LED 显示器接口 8-2 键盘与单片机接口 8-3 D/A转换器接口 8-4 A/D转换器接口

• 串行通信的基本概念 • 可编程串行I/O接口8251A • 8251A应用举例

• Application: Zone melting Morphology Instability of a S/L interface • Constitutional undercooling • Morphological instability of a S/L interface

SQL in a Programming Environment embedded SQL persistent stored modules Database-Connection Libraries Call-level interface (CLI) JDBC PHP

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◼ 8255A的内部结构、工作方式和编程 ◼ 8255A的控制字、工作方式及应用

Main Purpose Study an algorithm: – Translating a regular expression into a DFA via NFA