檢視片选信号的原始碼

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|<center>'''片选信号'''<br><img
src=" https://gimg2.baidu.com/image_search/src=http%3A%2F%2Fcdn.rohde-schwarz.com.cn%2Fpws%2Fapplication%2Fcards%2F3608_6590%2FEfficient-eye-diagram-testing-rohde-schwarz_ac_3608-6590-92_06_w1280_hX.jpg&refer=http%3A%2F%2Fcdn.rohde-schwarz.com.cn&app=2002&size=f9999,10000&q=a80&n=0&g=0n&fmt=auto?sec=1655030325&t=979008768f48f303e6fbb1447b36e6da" width="280"></center><small>  圖片來自百度</small> 
|}
所谓片选信号，指的是传统南北桥架构的主板中，[[地址线]]和[[数据线]]分开的[[BIOS芯片]]里的22脚的那个信号。它是由CPU发出，经北桥，南桥到达的。它的有无，可以初步判断南北桥及CPU是否开始工作，BIOS资料是否被破坏。

*中文名*[[片选信号]]

*外文名:chip select 或 slave select

*类    型:IT术语

*性    质:片选

*特    点:短暂

*简    称:CS 或 SS