Brief Introduction of Application: At present SGPIO is mainly used in the disk array storage of PC Server, it is able to control the health status of the hard disk and transmit the real-time information about the device. In the current known mainstream market, SGPIO are mostly used in one of the back panel management, hard disk fault location indicator system and input / output transmission interface of RAID controller. Function Introduction: SGPIO Bus has 4 signal lines in total, including SClock, SLoad, SDataOut and SDataIn, the former three are transmitted from Initiator to Target, and the last one is on the contrary. SClock is the clock signal, SLoad is the last clock of a bit stream transmission, SDataOut is the output bit stream of serial data, but SDataIn is the login bit stream of serial data (not supported by all SGPIO devices). Through these 4 signal lines, SGPIO Bus can control the status of disk lamp, in general, which includes Activity, Locate and Error. 【DOWNLOAD】