KSZ8851MQL/MLL/SNL
Product Brief
Single Port MAC/PHY Controller with Non PCI Interface
Description
The KSZ8851 supports cable diagnostics feature LinkMD
®
The KSZ8851 is a single-port embedded controller chip
with 8/16/32-bit and SPI host interfaces. The device is pin
and Hewlett Packard (HP) Auto-MDIX. The LinkMD
®
compatible with Micrel’s KSZ8841 and KSZ8842 product
feature determines the length of the cabling plant and also
families.
ascertains if there is an open or short condition in the
cable. Hewlett Packard (HP) Auto-MDIX features
The KSZ8851 integrates a Fast Ethernet MAC/PHY with
eliminates the need to differentiate between straight or
an 8/16/32-bit generic host processor interface and SPI
crossover cables.
interface. The device has 18KB of internal buffer memory
shared between the RXQ and TXQ. The buffer memory on
The KSZ8851 is designed to be fully compliant with the
the receive queue is 12KB while the buffer memory for the
IEEE 802.3 standards. The KSZ8851 is also available in
transmit queue is 6KB.
industrial grade version.
The KSZ8851 is designed with flexibility in mind. The
All datasheets and support documentation can be found
device is designed using a low-power CMOS process
on Micrel’s web site at: www.micrel.com.
which features programmable IO options of 1.8/2.5/3.3V.
___________________________________________________________________________________________________________
Block Diagram
KSZ8851 Block Diagram
LinkMD is a registered trademark of Micrel, Inc.
Micrel, Inc.
TEL:
+1 408.944.0800
FAX
:
+ 1 408.474.1000
http://
www.micrel.com
MICREL [ MICREL SEMICONDUCTOR ]
