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| KSZ8851MQL/MLL/SNL Product Brief Single Port MAC/PHY Controller with Non PCI Interface Description The KSZ8851 supports cable diagnostics feature LinkMD(R) 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(R) 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 Features * * * * * * * * * * * * * Single chip 10BASE-T/100BASE-TX Ethernet controller with IEEE802.3u support Supports IEEE 802.3x full-duplex flow control and halfduplex backpressure collision flow control Single bus timing for register and data accesses Supports burst data transfers Flexible 8-bit, 16-bit, 32-bit generic host processor interfaces and SPI host interface Supports both Big- and Little-Endian processors Efficient architecture design with configurable host interrupt schemes to minimize host CPU overhead and utilization 18KB internal memory for RX/TX FIFO buffers - 12KB RXQ and 6KB TXQ Ability to transmit and receive frames up to 2000 bytes Supports TCP/UDP/ICMP/IPv4/IPv6 32-bit CRC checksum generation and checking Powerful and flexible address filtering scheme Support for loop back mode Wake-on-LAN functionality - Incorporates Magic PacketTM, network link state, and wake-up frame technology Enhanced power management feature with energy detect mode and power-down mode to ensure low-power dissipation during device idle periods HP Auto MDI-XTM crossover with disable/enable option * * Micrel LinkMD(R) cable diagnostic capabilities to determine cable length, diagnose faulty cables, and determine distance to fault Comprehensive LED indicator support for link, activity, full/half duplex, and 10/100 speed (4 LEDs) - User programmable Low-power CMOS design Programmable IO Options: 3.3V/2.5/1.8V Commercial temperature range: 0oC to +70oC o o Industrial temperature range: -40 C to +85 C Available in 128-pin PQFP (8/16/32 Generic Bus), 48-pin LQFP (8/16 Generic Bus) and 32-pin QFN (SPI) * * * * * Applications * * * * * * * * Video Distribution Systems High-end Cable, Satellite, and IP set-top boxes Video over IP (VoIP) Analog Telephone Adapters (ATA) Industrial Control in Latency Critical Applications Motion Control Industrial Control Sensor Devices (Temperature, Pressure, Levels, and Valves) Security and Surveillance Cameras * * Corporate Sales Offices Location Corporate HQ Western USA Central USA Eastern USA Latin America China Japan Korea Singapore/India Taiwan France/Southern Europe UK/EMEA Sweden/Nordic Address 2180 Fortune Dr. 2180 Fortune Dr. 2425 N. Central Expressway, Suite 351 93 Branch St. 2425 N. Central Expressway, Suite 351 Rm 601, Bldg., Int'l Chamber of Commerce Mansion, Fuhua Rd., Futian District Queen's Tower A 14F, 2-3-1, Minato Mirai, NishiKu, Yokohama-Shi 8F AnnJay Tower Bldg., 718-2, Yeoksam-Dong 300 Beach Rd., #10-07 Concourse 4F, No. 43 Lane 188, Rueiguang Rd., Neihu District Les Laurentides Immeuble Ontario, 3 avenue du Quebec 1st Floor, 3 Lockside Place, Mill Lane, Newbury, Berks Lundagatan 11 6tr San Jose, CA 95131 USA San Jose, CA 95131 USA Richardson, TX 57080 USA Medford, NJ 08055 USA Richardson, TX 57080 USA Shenzhen, P.R. China Kanagawa 220-6014, Japan Kangnam-Ku, Seoul 135-080 Korea Singapore 199555 Taipei, Taiwan, R.O.C. 91140 Villebon sur Yvette, France United Kingdom RG14 5QS SE-171 63 Solna Sweden Telephone (408) 944-0800 (408) 944-0800 (972) 393-2533 (609) 654-0078 (972) 393-2533 +86-755-8302-7618 +81-45-224-6616 82 (2) 538-2380 +65-6291-1318 +866 (2) 8751-0600 +33 (0) 1.6092.4190 +44 (1635) 524455 +46 (8) 470-5950 Fax (408) 474-1000 (408) 474-1000 (408) 474-1210 (609) 654-0989 (408) 474-1210 +86-755-8302-7637 +81-45-224-6716 82 (2) 538-2381 +65-6291-1332 +866 (2) 8751-0746 +33 (0) 1.6092.4189 +44 (1635) 524466 +46 (8) 470-5950 Micrel, Inc. TEL: +1 408.944.0800 FAX: + 1 408.474.1000 http://www.micrel.com M9999-070308 |
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