<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <HTML ><HEAD ><TITLE >sis630_set_eq</TITLE ><META NAME="GENERATOR" CONTENT="Modular DocBook HTML Stylesheet Version 1.7"><LINK REL="HOME" TITLE="SiS 900/7016 Fast Ethernet Device Driver" HREF="book1.html"><LINK REL="UP" TITLE="List of Functions" HREF="c202.html"><LINK REL="PREVIOUS" TITLE="sis900_init_rx_ring" HREF="r698.html"><LINK REL="NEXT" TITLE="sis900_timer" HREF="r775.html"></HEAD ><BODY CLASS="REFENTRY" BGCOLOR="#FFFFFF" TEXT="#000000" LINK="#0000FF" VLINK="#840084" ALINK="#0000FF" ><DIV CLASS="NAVHEADER" ><TABLE SUMMARY="Header navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TH COLSPAN="3" ALIGN="center" >SiS 900/7016 Fast Ethernet Device Driver</TH ></TR ><TR ><TD WIDTH="10%" ALIGN="left" VALIGN="bottom" ><A HREF="r698.html" ACCESSKEY="P" ><<< Previous</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="r775.html" ACCESSKEY="N" >Next >>></A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="AEN724" ></A ><SPAN CLASS="phrase" ><SPAN CLASS="PHRASE" >sis630_set_eq</SPAN ></SPAN ></H1 ><DIV CLASS="REFNAMEDIV" ><A NAME="AEN728" ></A ><H2 >Name</H2 >sis630_set_eq -- set phy equalizer value for 630 LAN </DIV ><DIV CLASS="REFSYNOPSISDIV" ><A NAME="AEN731" ></A ><H2 >Synopsis</H2 ><DIV CLASS="FUNCSYNOPSIS" ><A NAME="AEN733" ></A ><P ></P ><P ><CODE ><CODE CLASS="FUNCDEF" >void <TT CLASS="FUNCTION" >sis630_set_eq </TT ></CODE >(struct net_device * <TT CLASS="PARAMETER" ><I >net_dev</I ></TT >, u8 <TT CLASS="PARAMETER" ><I >revision</I ></TT >);</CODE ></P ><P ></P ></DIV ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN741" ></A ><H2 >Arguments</H2 ><P ></P ><DIV CLASS="VARIABLELIST" ><DL ><DT ><TT CLASS="PARAMETER" ><I >net_dev</I ></TT ></DT ><DD ><P > the net device to set equalizer value </P ></DD ><DT ><TT CLASS="PARAMETER" ><I >revision</I ></TT ></DT ><DD ><P > 630 LAN revision number </P ></DD ></DL ></DIV ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN754" ></A ><H2 >Description</H2 ><P > 630E equalizer workaround rule(Cyrus Huang 08/15) PHY register 14h(Test) </P ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN757" ></A ><H2 >Bit 14</H2 ><P > 0 -- Automatically dectect (default) 1 -- Manually set Equalizer filter </P ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN760" ></A ><H2 >Bit 13</H2 ><P > 0 -- (Default) 1 -- Speed up convergence of equalizer setting </P ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN763" ></A ><H2 >Bit 9 </H2 ><P > 0 -- (Default) 1 -- Disable Baseline Wander Bit 3~7 -- Equalizer filter setting </P ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN766" ></A ><H2 >Link ON</H2 ><P > Set Bit 9, 13 to 1, Bit 14 to 0 Then calculate equalizer value Then set equalizer value, and set Bit 14 to 1, Bit 9 to 0 </P ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN769" ></A ><H2 >Link Off</H2 ><P > Set Bit 13 to 1, Bit 14 to 0 </P ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN772" ></A ><H2 >Calculate Equalizer value</H2 ><P > When Link is ON and Bit 14 is 0, SIS900PHY will auto-dectect proper equalizer value. When the equalizer is stable, this value is not a fixed value. It will be within a small range(eg. 7~9). Then we get a minimum and a maximum value(eg. min=7, max=9) 0 <= max <= 4 --> set equalizer to max 5 <= max <= 14 --> set equalizer to max+1 or set equalizer to max+2 if max == min max >= 15 --> set equalizer to max+5 or set equalizer to max+6 if max == min </P ></DIV ><DIV CLASS="NAVFOOTER" ><HR ALIGN="LEFT" WIDTH="100%"><TABLE SUMMARY="Footer navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" ><A HREF="r698.html" ACCESSKEY="P" ><<< Previous</A ></TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="book1.html" ACCESSKEY="H" >Home</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><A HREF="r775.html" ACCESSKEY="N" >Next >>></A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" ><SPAN CLASS="phrase" ><SPAN CLASS="PHRASE" >sis900_init_rx_ring</SPAN ></SPAN ></TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="c202.html" ACCESSKEY="U" >Up</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><SPAN CLASS="phrase" ><SPAN CLASS="PHRASE" >sis900_timer</SPAN ></SPAN ></TD ></TR ></TABLE ></DIV ></BODY ></HTML >