VSC8541XMV-05 datasheet(11/101 Pages) MICROCHIP

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Overview

VMDS-10513 VSC8541-02 Datasheet Revision 4.1

Overview

The VSC8541-02 device is designed for space-constrained 10/100/1000BASE-T applications. It features

integrated, line-side termination to conserve board space, lower EMI, and improve system performance.

Additionally, integrated RGMII timing compensation eliminates the need for on-board delay lines.

Microsemi’s EcoEthernet™ v2.0 technology supports IEEE 802.3az Energy-Efficient Ethernet (EEE) and

power-saving features to reduce power based on link state and cable reach. VSC8541-02 optimizes

power consumption in all link operating speeds and features a Wake-on-LAN (WoL) power management

mechanism for bringing the PHY out of a low-power state using designated magic packets.

Fast link failure (FLF) indication for high availability networks identifies the onset of a link failure in less

than 1 ms typical to go beyond the IEEE 802.3 standard requirement of 750 ms ±10 ms (link master).

Potential link failure events can be more flexibly monitored using an enhanced FLF2 state machine,

which goes beyond FLF indication by enabling signaling of the link potentially going down within 10 µS.

The device includes recovered clock output for Synchronous Ethernet applications. Programmable clock

squelch control is included to inhibit undesirable clocks from propagating and to help prevent timing

loops. Ring Resiliency allows a PHY port to switch between master and slave timing references with no

link drop in 1000BASE-T mode.

The following illustration shows a high-level, general view of a typical VSC8541-02 application.

Figure 1 •

Application Diagram

2.1

Key Features

This section lists the main features and benefits of the VSC8541-02 device.

2.1.1

Superior PHY and Interface Technology

•

Integrated 10/100/1000BASE-T Ethernet copper transceiver (IEEE 802.3ab compliant) with the

industry’s only non-TDR-based VeriPHY™ cable diagnostics algorithm

•

Patented line driver with low EMI voltage mode architecture and integrated line-side termination

resistors

•

Wake-on-LAN using magic packets

•

HP Auto-MDIX and manual MDI/MDIX support

•

RGMII/GMII/MII/RMII MAC interface

•

Jumbo frame support up to 16 kilobytes with programmable synchronization FIFOs

2.1.2

Synchronous Ethernet and IEEE 1588 Time Stamp Support

•

Recovered clock output with programmable clock squelch control for G.8261 Synchronous Ethernet

applications

•

1000BASE-T Ring Resiliency feature to switch between master and slave timing without dropping

link

•

Clock output squelch to inhibit clocks during auto-negotiation and no link status

•

Clause 45 registers to support IEEE 802.3bf

•

IEEE 1588 Start of Frame (SOF) detection to enhance 1588v2 PTP time stamp accuracy

(VSC8541XMV-05 only)

VSC8541-02

1-port Copper Media

R/G/MII, RMII MAC

interface

3.3 V/2.5 V/1.8 V/1.5 V

2.5 V 1.0 V

R/G/MII, RMII MAC

1X RJ-45

and Magnetics

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