IP178C-DS-R03 datasheet(55/93 Pages) ETC2

55 / 93 page

IP178C/IP178C LF/IP178CH/IP178CH LF

Datasheet

55/93

June 21, 2007

IP178Cx-DS-R12

PHY

MII

ROM

R/W

Description

Default

During SCA_mode, the SCA result for each port will be stored at MII_reg_05: Auto-Negotiation

Link Partner Base Page Ability. SCA setting register

5[15:14]

SCA_line_state

These two bits indicate the cable status measured by SCA

operation.

3: test fail (not complete)

2: line okay

1: line open

0: line short

5[13:8]

SCA_peak_val

These bits indicate the absolute value and the maximum

value of peak amplitude measured by SCA operation.

5[7:2]

SCA_peak_pos[7:2]These bits indicate the position of peak

amplitude measured by SCA operation.

When cable status is open or short, the failure position is

approximated as (SCA_peak_pos[7:2] * 4) meters.

Ex: SCA_peak_pos[7:2] = 6’b011001, the failure position is

25*4 = 100 meters

5[1:0]

SCA_txsel

These two bits indicate the TX phase of SCA operation.

IP178C-DS-R03 数据表(PDF) 55 Page - List of Unclassifed Manufacturers

IP178C-DS-R03 数据表(HTML) 55 Page - List of Unclassifed Manufacturers

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