引言ST最新推出的M50FW040固件集线器，采用了被称作‘低引脚数接口规范’或LPC的新主板互连协议。LPC总线是主板芯片组和单板外设功能之间的高速接口。由于主板上连接超级IO、系统管理以及现在的系统BIO闪存的工业标准体系结构(ISA或X总线)的传输速度较慢，因此，LPC正在迅速 INTRODUCTION ST’s new M50FW040 firmware hub uses a new motherboard interconnect protocol called the Low Pin Count Interface Specification or LPC. The LPC bus is a high-speed interface between the motherboard chipset and the board peripheral features. Because of the slow transfer of industry-standard architecture (ISA or X-Bus) on the motherboard that connects Super IO, system management and the current system BIO flash, LPC is rapidly