LAN9250 datasheet(257/421 Pages) MICROCHIP

Part #	LAN9250

Description	Integrated Ethernet PHY with HP Auto-MDIX

PDF	421 Pages

Scroll/Zoom	100%

Manufacturer	MICROCHIP [Microchip Technology]

Direct Link	http://www.microchip.com

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257 / 421 page

 2015 Microchip Technology Inc.

DS00001913A-page 257

LAN9250

12.2.18.19 PHY Cable Length Register (PHY_CABLE_LEN)

Index (In Decimal): 28

Size:

16 bits

Bits

Description

Type

Default

15:12

Cable Length (CBLN)

This four bit value indicates the cable length. Refer to Section 12.2.14.2,

"Matched Cable Diagnostics," on page 227 for additional information on the

usage of this field.

Note:

This field indicates cable length for 100BASE-TX linked devices

that do not have an open/short on the cable. To determine the

open/short status of the cable, the PHY TDR Patterns/Delay

Control Register (PHY_TDR_PAT_DELAY) and PHY TDR Control/

Status Register (PHY_TDR_CONTROL_STAT) must be used.

Cable length is not supported for 10BASE-T links. Refer to Section

12.2.14, "Cable Diagnostics," on page 224 for additional

information.

0000b

11:0

RESERVED - Write as 100000000000b, ignore on read

R/W

LAN9250 Datasheet(PDF) 257 Page - Microchip Technology