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来自维基百科,自由的百科全书
LPC匯流排,原名叫Low Pin Count Bus,是在IBM PC兼容機中用於把低帶寬裝置,連接到CPU上。這些低速設備有:BIOS,Super I/O,TPM。LPC匯流排通常和主板上的南橋物理相連。 LPC匯流排是Intel在1998時作為工業標準結構(ISA)的替代品引入,它與ISA在軟件層面是類似的,儘管在物理層面有着巨大不同,ISA是16bit寬,8.33 MHz的匯流排,而它是4bit寬,有着四倍頻率(33.3 MHz)的匯流排。
LPC訊號有START、STOP、CYCTYPE+DIR、IDSEL、TAR、SIZE/MSIZE、ADDR、CHANNEL、DATA及SYNC等:
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