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| PMC-Sierra,Inc. PM3370 Octal 10/100 Mbit/s Switch Port-Controller FEATURES * Monolithic intelligent octal 10/100 Ethernet Switch Port Controller. * Integrates eight 10/100 MACs that connect to physical layer devices over standard IEEE 802.3u MIIs. * Supports the Gigabit EXACT Bus Protocol for device interconnect. * May be used alone or in combination with other devices to build high density 10/100 switches. * PM3390 EXACT Bus Switch Matrix allows non-blocking expansion up to 96 10/100 Mbit/s ports. * Layer 2 line rate address lookup capability for all Ethernet port configurations supported. * Store-and-forward switching using output associated input buffering for efficient memory use without Head Of Line (HOL) blocking. * Supports 8,000 MAC addresses. * 1022 multicast groups available. Bitmask per group defines membership. * EXACT Bus is compatible with common serial devices for simple system stacking using coax or twinax cable. * Support for IEEE 802.1D bridging and spanning tree algorithm in an external processor. * Embedded SmartPathTM Processor supports value-added datapath operations. * Two 32-bit memory interfaces for flexible combinations of SSRAM, SDRAM, and EPROM allows cost optimization of different applications. * Programmable packet pattern matchers for identification of ARP, RARP, ICMP, and other protocol or packet types. * All statistics registers and data structures accessible through the CMI. * Supports the implementation of Spanning Tree (IEEE 802.1D) by exchanging BPDU packets on all ports. * A MAC bypass mode (ENTRE mode) allows a 800 Mbit/s full duplex access channel into the device with 32-bit FIFO bus. * Allows connection of proprietary ASICs to an EXACT system. * Supports ATM or Packet over SONET applications. * Customer product differentiation is enabled by applications using CMI calls to leverage EXACT resources. VLAN * Up to 4094 IEEE 802.1Q VLAN tags with support for 4094 FIDs. * Up to 1022 active VLANs. * Ingress filtering of packets. * Shared and independent learning. * GARP, GVRP, GMRP packet identification and forwarding to external CUP for processing. * Tag insertion and removal for unicast and multicast packets. COMPATIBILITY * Interworks with the PM3380 Gigabit Switch Port Controller. * Interworks with the PM3390 8-Port EXACT Bus Switch Matrix. PRIORITY * Class of service supported via IEEE 802.1D (formerly 802.1p) with two levels of priority. PACKAGING * Provides a standard 5-signal P1149.1 JTAG test port for boundary scan board test purposes. * Implemented in low power 3.3 V, CMOS technology with 5 V tolerant MII interface. * Available in a 352-pin Ball Grid Array (BGA) package. VALUE ADD * Control and Management Interface provides standard interface for non real-time access to data structures (such as SNMP and RMON applications). BLOCK DIAGRAM System Clock EXACT Bus Reference Clock Eight Independent MII Interfaces Transmit Control 8x10/100 Media Access Control Address Resolution Logic Egress Queue Manager SmartPath CPU EXACT Bus Input Port EXACT Ring Interface EXACT Bus Output Port Receive Control Micro Interface Ingress DMA Unit MANAGEMENT * System Interface provided in CMI to support standard SNMP software packages, or the porting of existing management software. * Hardware statistics collection supports RMON-I (9 groups), Ethernet MIB, and SNMP agent functions. Microprocessor Interface Ingress Queue Manager Global Registers JTAG Memory Port Controller Memory Port Controller JTAG SDRAM SSRAM PMC-980235 (R6) PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS' INTERNAL USE (c) 1999 PMC-Sierra, Inc. PM3370 Octal 10/100 Mbit/s Switch Port-Controller APPLICATIONS * Ethernet Switching System Requiring High Density 10/100 Ports. * Ethernet Switching Systems Capable of 10, 100, and 1000 Mbit/s Operation When Used with PM3380 and PM3390. TYPICAL APPLICATION 24 x 10/100 + 2 x 1000 WITH 3 GIGABIT BACKPLANE PORTS SERDES SERDES SERDES CPU PM3390 8-Port EXACT Bus Switch Matrix PM3370 Octal 10/100 Switch Port Controller PM3370 Octal 10/100 Switch Port Controller PM3370 Octal 10/100 Switch Port Controller PM3380 Gigabit Switch Port Controller PM3380 Gigabit Switch Port Controller SERDES SERDES Head Office: PMC-Sierra, Inc. #105 - 8555 Baxter Place Burnaby, B.C. V5A 4V7 Canada Tel: 604.415.6000 Fax: 604.415.6200 To order documentation, send email to: document@pmc-sierra.com or contact the head office, Attn: Document Coordinator All product documentation is available on our web site at: http://www.pmc-sierra.com For corporate information, send email to: info@pmc-sierra.com PMC-980235 (R6) (c) 1999 PMC-Sierra, Inc. September, 1999 SmartPath is a trademark of PMC-Sierra, Inc. PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS' INTERNAL USE |
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