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KSZ8841-16MQL Datasheet, PDF (1/2 Pages) Micrel Semiconductor – Single-Port Ethernet MAC Single-Port Ethernet MAC | |||
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www.micrel.com
KSZ8841-16MQL
KSZ8841-32MQL
Product Brief
Single-Port Ethernet MAC
Controller with Non-PCI Interface
Description
The KSZ8841-series single-port chip includes PCI and
non-PCI CPU interfaces, and are available in 8/16-bit
and 32-bit bus designs.
The KSZ8841-16MQL (or -32MQL) is a single chip, mixed
analog/digital device offering Wake-on-LAN technology for
effectively addressing Fast Ethernet applications. It con-
sists of a Fast Ethernet MAC controller, an 8-bit, 16-bit, and
32-bit generic host processor interface and incorporates
a unique dynamic, fully utilizable 8KB buffer memory for
both TX and RX directions in host buffer interface.
The KSZ8841-16MQL (or -32MQL) is designed to be fully
compliant with the appropriate IEEE 802.3 standards.
Physical signal transmission and reception are enhanced
through the use of analog circuitry, making the design
more efï¬cient and allowing for lower power consumption.
The KSZ8841M is designed using a low-power CMOS
process that features a single 3.3V power supply with
5V tolerant I/O. It has an extensive feature set that offers
management information base (MIB) counters and CPU
control/data interfaces.
The KSZ8841M includes a unique cable diagnostic
feature called LinkMD®. This feature determines the
length of the cabling plant and also ascertains if there
is an open or short condition in the cable. A companying
software enables the cable length and cable conditions
to be conveniently displayed. In addition, the KSZ8841M
supports Hewlett Packard (HP) Auto-MDIX thereby
eliminating the need to differentiate between straight
or crossover cables in applications.
Industrial temperature support (-40°C to +85°C) is also
provided with the KSZ8841-16MVLI.
For additional information, contact your local Micrel Field
Application Engineer or salesperson.
LinkMD is a registered trademark of Micrel, Inc.
Magic Packet is a trademark of Advanced Micro Devices, Inc.
Product names used in this datasheet are for identiï¬cation purposes only and
may be trademarks of their respective companies.
Block Diagram
P1 HP Auto
MDI/MDI-X
Embedded Processor
Interface
8, 16, or 32-bit
Generic Host
Interface
P1 LED[3:0]
EEPROM I/F
10/100
Base-T/TX
PHY
Non-PCI
CPU
Bus
Interface
Unit
QMU
DMA
Channel
LED
Driver
Host MAC
RXQ
4KB
TXQ
4KB
Control
Registers
MIB
Counters
EEPROM
Interface
KSZ8841M Functional Diagram
Micrel, Inc. TEL: 1.408.944.0800 FAX: 1.408.474.1000 HTTP:// www.micrel.com
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