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kernel-doc-html-2.4.19-16mdk.i586.rpm

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>SiS 900/7016 Fast Ethernet Device Driver</TH
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>sis630_set_eq</SPAN
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><H2
>Name</H2
>sis630_set_eq&nbsp;--&nbsp;      set phy equalizer value for 630 LAN
 </DIV
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>Synopsis</H2
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><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
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>Arguments</H2
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><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
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><A
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><H2
>Description</H2
><P
>   630E equalizer workaround rule(Cyrus Huang 08/15)
   PHY register 14h(Test)
 </P
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><A
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><H2
>Bit 14</H2
><P
>    0 -- Automatically dectect (default)
   1 -- Manually set Equalizer filter
 </P
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><H2
>Bit 13</H2
><P
>    0 -- (Default)
   1 -- Speed up convergence of equalizer setting
 </P
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><H2
>Bit 9 </H2
><P
>    0 -- (Default)
   1 -- Disable Baseline Wander
   Bit 3~7   -- Equalizer filter setting
 </P
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><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
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>Link Off</H2
><P
>   Set Bit 13 to 1, Bit 14 to 0
 </P
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><A
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><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 &#60;= max &#60;= 4  --&#62; set equalizer to max
   5 &#60;= max &#60;= 14 --&#62; set equalizer to max+1 or set equalizer to max+2 if max == min
   max &#62;= 15      --&#62; set equalizer to max+5 or set equalizer to max+6 if max == min
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