Microchip KSZ8563 Manual

Microchip Ikke kategoriseret KSZ8563

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 2018 Microchip Technology Inc. DS00002686A-page 1

INTRODUCTION

The IEEE 802.3 Ethernet Compliance testing encompasses a wide range of tests that utilize different waveforms for the

various device speeds:

• 10BASE-T: Four waveforms (link pulse/idle, pseudo-random, all ones, and arbitrary waveform signal)

• 100BASE-TX: Two waveforms (transmit scrambled idle and arbitrary waveform signal)

• 1000BASE-T: Five waveforms (four test mode 1-4 waveforms and arbitrary waveform signal)

The register settings apply to the PHY registers for most of Microchip’s Ethernet products.

Note: The test setup and figures are with a Tektronix scope, TDSET3 Ethernet Compliance Software, and TF-GBE

test fixture board. The Twisted Pair Model (TPM) is on the test fixture board.

10BASE-T COMPLIANCE TESTING

The 10BASE-T compliance tests are:

• Link Pulse Testing

• Medium Attachment Unit (MAU)

• TP_IDL

• Jitter

• Differential Voltage

• Harmonics

• Transmitter Return Loss

• Receiver Return Loss

• Common-Mode Voltage

Link Pulse Testing and TP_IDL are tested with and without the Twisted Pair Model. Each test section below provides

the test description, test setup details, and pass criteria.

For 10BASE-T test data transmission (pseudo-random and all ones patterns) on KSZ switches, KSZ Gigabit PHYs and

LAN PHYs (other than LAN78xx which can generate test patterns itself), use the link partner (set to forced 10BASE-T)

to transmit the signal to the device under test (DUT) and enable remote loopback on the DUT.

For 10BASE-T test data transmission (pseudo-random and all ones patterns) on KSZ80xx PHYs, the PHY is connected

to the MAC of a switch via MII/RMII connection. The link partner transmits the test signal to the switch’s PHY port and

through the MII/RMII to the DUT’s PHY port.

Link Pulse Testing

This is a test of the 10BASE-T Link Pulse signal integrity.

For link pulse testing without Twisted Pair Model, the DUT is connected to the DUT port for the 10BASE-T Parametric/

Template Test (some boards may add ‘without Twisted Pair Model’), and the oscilloscope probe is attached to the test

jumper.

For link pulse testing with Twisted Pair Model, the DUT is connected to the DUT port for the 10BASE-T Parametric/Tem-

plate Test with Twisted Pair Model, and the oscilloscope probe is attached to the test jumper after load selection.

To configure the DUT for link pulse testing, refer to 10BASE-T Link Pulse Setting on any part for register settings. Pass

specification is based on the Link Pulse remaining inside the mask for both the head and the tail.

AN2686

Ethernet Compliance Testing for 10BASE-T,

100BASE-TX, and 1000BASE-T

Author: John MacKay

Microchip Technology Inc.

AN2686

DS00002686A-page 2  2018 Microchip Technology Inc.

FIGURE 1: 10BASE-T LINK PULSE WITHOUT TWISTED PAIR MODEL

FIGURE 2: 10BASE-T LINK PULSE WITH TWISTED PAIR MODEL

Produkt Specifikationer

Mærke:	Microchip
Kategori:	Ikke kategoriseret
Model:	KSZ8563

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