1 Reply Latest reply on Nov 17, 2014 3:57 PM by joe_intel

    SMBUS send Byte data fail on skylake Platform

    Wendy-ni

      On Skylake platform.According to Spec,  page 193 Host Ctrl  Register (HCL), if   (SMB_CMD == 1) , it  will send  slave address ,and command register, if(SMB_CMD == 2)it  will send  slave address ,command register  and data 0. if(SMB_CMD == 2)it  will send  slave address ,command register ,  data 0 and data1. But  the  waveforms we get  shows no matter SMB_CMD Set, it always only send Slave Address and Command register Address. But ICH9 and ICH10 works well. . Do i need to do other step in skylake platform? waitingfor  your help