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KSZ8463MLI bảng dữ liệu(PDF) 21 Page - Microchip Technology

tên linh kiện KSZ8463MLI
Giải thích chi tiết về linh kiện  10/100 Managed Switch
PDF  213 Pages
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nhà sản xuất  MICROCHIP [Microchip Technology]
Trang chủ  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

KSZ8463MLI bảng dữ liệu(HTML) 21 Page - Microchip Technology

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 2018 Microchip Technology Inc.
DS00002642A-page 21
KSZ8463ML/RL/FML/FRL
FIGURE 3-3:
AUTO-NEGOTIATION FLOW CHART
3.1.14
LINKMD® CABLE DIAGNOSTICS
The KSZ8463 LinkMD uses time domain reflectometry (TDR) to analyze the cabling plant for common cabling problems
such as open circuits, short circuits, and impedance mismatches.
LinkMD works by sending a pulse of known amplitude and duration down the MDI and MDI-X pairs and then analyzes
the shape of the reflected signal. Timing the pulse duration gives an indication of the distance to the cabling fault with a
maximum distance of 200m and an accuracy of ±2m. Internal circuitry displays the TDR information in a user-readable
digital format in register P1SCSLMD[8:0] or P2SCSLMD[8:0].
Cable diagnostics are only valid for copper connections. Fiber-optic operation is not supported.
3.1.14.1
Access
LinkMD is initiated by accessing register P1SCSLMD (0x07C) or P2SCSLMD (0x094), the PHY special control/status
and LinkMD register.
START AUTO-NEGOTIATION
FORCE LINK SETTING
LISTEN FOR 10BASE-T
LINK PULSES
LISTEN FOR 100BASE-TX
IDLES
ATTEMPT AUTO-
NEGOTIATION
LINK MODE SET
BYPASS AUTO-NEGOTIATION
AND SET LINK MODE
LINK MODE SET?
PARALLEL
OPERATION
NO
YES
YES
NO
JOIN FLOW



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