RTL8201CL-VD datasheet(24/39 Pages) REALTEK

Part #	RTL8201CL-VD

Description	SINGLE-CHIP/SINGLE-PORT 10/100M FAST ETHERNET PHYCEIVER

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Manufacturer	REALTEK [Realtek Semiconductor Corp.]

Direct Link	https://www.realtek.com/en/

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24 / 39 page

RTL8201CL

Datasheet

Single-Chip/Port 10/100 Fast Ethernet PHYceiver

18

Track ID: JATR-1076-21 Rev. 1.24

7.4. Hardware Configuration and Auto-Negotiation

This section describes methods to configure the RTL8201CL and set the auto-negotiation mode. Table 26

shows the various pins and their settings.

Table 26. Auto-Negotiation Mode Pin Settings

Pin Name

Description

Isolate

Set high to isolate the RTL8201CL from the MAC. This will also isolate the MDC/MDIO

management interface. In this mode, power consumption is minimum (see 7.7 Power Down, Link

Down, Power Saving, and Isolation Modes, page 20).

RPTR

Pull high to set the RTL8201CL into repeater mode. This pin is pulled low by default (see

7.9 Repeater Mode Operation, page 22.

LDPS

Pull high to set the RTL8201CL into LDPS mode. This pin is pulled low by default (see 7.7 Power

Down, Link Down, Power Saving, and Isolation Modes, page 20).

MII/SNIB

Pull high to set RTL8201CL into MII mode operation, which is the default mode for the RTL8201.

This pin pulled low will set the RTL8201CL into SNI mode operation. When set to SNI mode, the

RTL8201CL will operate at 10Mbps (see 7.6 Serial Network Interface, page 20).

ANE

Auto-Negotiation Enable. Pull high to enable auto-negotiation (default). Pull low to disable auto-

negotiation and activate the parallel detection mechanism (see 7.2 Auto-Negotiation and Parallel

Detection, page 16).

SPEED

When ANE is pulled high, the ability to adjust speed is setup. When ANE is pulled low, pull this pin

low to force 10Mbps operation and high to force 100Mbps operation (see 7.2 Auto-Negotiation and

Parallel Detection, page 16).

DUPLEX

When ANE is pulled high, the ability to adjust the DUPLEX pin will be setup. When ANE is pulled

low, pull this pin low to force half duplex and high to force full duplex operation (see 7.2 Auto-

Negotiation and Parallel Detection, page 16).

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RTL8201CL-VD Datasheet(PDF) 24 Page - Realtek Semiconductor Corp.

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