KSZ8841-PMQL(2006) Ver la hoja de datos (PDF) - Micrel

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KSZ8841-PMQL
(Rev.:2006)

Single-Port Ethernet MAC Controller with PCI Interface

Micrel 

KSZ8841-PMQL

Single-Port Ethernet MAC Controller

with PCI Interface

Rev. 1.2

General Description

The KSZ8841-series single-port chip includes PCI and

non-PCI CPU interfaces. This datasheet describes the

KSZ8841-PMQL with PCI CPU interface chips. For

information on the KSZ8841 non-PCI CPU interface

chips, refer to the KSZ8841-MQL datasheet.

The KSZ8841-PMQL is a single port Fast Ethernet MAC

chip with a 32-bit/33MHz PCI processor interface.

Designed to be fully compliant with the IEEE 802.3u

standard, the KSZ8841-PMQL is also available in an

industrial temperature-grade version of the KSZ8841-

PMQL, the KSZ8841-PMQLI, (See Ordering Information).

Physical signal transmission and reception are enhanced

through the use of analog circuitry, making the design

more efficient and allowing for lower power consumption.

The KSZ8841-PMQL is designed using a low-power

CMOS process that features a single 3.3V power supply

with 5V tolerant I/O.

LinkMD

The KSZ8841-PMQL is a mixed signal analog/digital

device offering Wake-on-LAN technology. Its extensive

feature set includes management information base (MIB)

counters and CPU control/data interfaces.

The KSZ8841-PMQL includes a unique cable diagnostics

feature called LinkMD™. This feature calculates the

length of the cabling plant and determines if there is an

open/short condition in the cable. Accompanying

software allows the cable length and cable conditions to

be conveniently displayed. In addition, the KSZ8841-

PMQL supports Hewlett Packard (HP) Auto-MDIX

thereby eliminating the need to differentiate between

straight or crossover cables in applications.

Data sheets and support documentation can be found on

Micrel’s web site at: www.micrel.com.

Functional Diagram

KSZ8841-PMQL

LinkMD is a trademark of Micrel, Inc

Magic Packet is a trademark of Advanced Micro Devices, Inc.

Product/Application names used in this datasheet are for identification purposes only and may be trademarks of their respective companies.

Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com

June 2006

M9999-061206-1.2

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