Arguments

Description

630E equalizer workaround rule(Cyrus Huang 08/15) PHY register 14h(Test)

Bit 14

0 -- Automatically dectect (default) 1 -- Manually set Equalizer filter

Bit 13

0 -- (Default) 1 -- Speed up convergence of equalizer setting

Bit 9

0 -- (Default) 1 -- Disable Baseline Wander Bit 3~7 -- Equalizer filter setting

Link ON

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

Link Off

Set Bit 13 to 1, Bit 14 to 0

Calculate Equalizer value

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