PMC-Sierra,Inc. PM3390 Octal EXACT™ Bus Switch Matrix FEATURES • Sixteen Gbit/s, protocol-independent switching matrix expandable to 32 Gbit/s. • Provides eight gigabit, full-duplex EXACT™ Bus ports that each support an EXACT switch port controller. • Provides non-blocking connection between eight EXACT Bus (Ethernet Switching, Access, Control, and Termination) rings. • Supports non-blocking connections between sixteen EXACT Bus rings to provide a system bandwidth of 32 Gbit/s using four PM3390 devices. • Destination lookup table maps logical EXACT ports to physical PM3390 ports. Destination lookup table can be dynamically allocated. • Provides visibility into internal dataflow to allow external flow control in systems that do not use the EXACT Bus link protocol. • Each chip supports the EXACT Bus Protocol, which is a 10-bit, unidirectional insertion ring running at 125 MHz or 135 MHz. • EXACT Bus ports allow simple box-tobox, card-to-card, or chip-to-chip interconnect. • 8B/10B EXACT Bus encoding is compatible with Common Serialization (SERDES) devices to allow serial extension using coax or twinax cable. • Management interface connects to an off-chip microprocessor for access to internal control registers. COMPATIBILITY • Interworks with the following EXACT Chipset devices: PACKAGING • Provides a standard five signal P1149.1 JTAG test port for boundary scan board test purposes. • Implemented in low power 3.3 V, CMOS technology. • Available in a 352-pin Ball Grid Array (BGA) package. APPLICATIONS • High Bandwidth (16 to 32 Gbit/s) Ethernet Switches that Support Combinations of 10/100/1000 Ports. • Multiprotocol Switch (Ethernet, ATM, Packet Over SONET, FDDI, and TR) • Modular Ethernet Switches. • Fixed-configuration Ethernet Switches. PM3370 Octal 10/100 Ethernet Switch Port Controller with MII interfaces. PM3380 Gigabit Ethernet Switch Port Controller. BLOCK DIAGRAM 8 × EXACT Output Ports 8 × EXACT Input Ports XRXD[9:0] EXACT 8 Input Buffers Pipelined Data Mux Cell Central Store Pipelined Data Mux EXACT 8 Output Buffers XRCLK XTCLK Per Port Signals Per Port Signals Management Interface Expansion Contol MI_AD[15:0] MI_ALE MI_RD MI_WR MI_CS XFLOWI XFLOWO XSTATI XSTATO XFRAMEI XFRAMEO 4 Port Expansion Interface EXRXCLK Control Interface EXRXD[8:0] JTAG SYSCLK XREFCK135 XREFCK125 RESETI INT NFLOW[3:0] Cell List Manager TDI TDO TMS TCK TRSTB Free List Manager PMC-980237 (R5) XTXD[9:0] PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE 1999 PMC-Sierra, Inc. PM3390 Octal EXACT™ Bus Switch Matrix TYPICAL APPLICATIONS 24 × 10/100 + 2 × 1000 WITH THREE GIGABIT BACKPLANE PORTS SERDES SERDES CPU SERDES PM3390 Octal EXACT Bus Switch Matrix PM3370 Octal 10/100 Ethernet Switch Port Controller PM3370 Octal 10/100 Ethernet Switch Port Controller PM3370 Octal 10/100 Ethernet Switch Port Controller PM3380 Gigabit Ethernet Switch Port Controller PM3380 Gigabit Ethernet Switch Port Controller SERDES SERDES 32 Gbit/s, 16-RING PM3390 EXPANSION CONFIGURATION EXACT Ring 0-3 EXACT Ring 8-11 EXACT Ring 4-7 EXACT Ring 12-15 Head Office: PMC-Sierra, Inc. #105 - 8555 Baxter Place Burnaby, B.C. V5A 4V7 Canada Tel: 604.415.6000 Fax: 604.415.6200 PM3390 Octal EXACT Bus Switch Matrix EXACT Ring 0-3 PM3390 Octal EXACT Bus Switch Matrix EXACT Ring 4-7 PM3390 Octal EXACT Bus Switch Matrix EXACT Ring 8-11 PM3390 Octal EXACT Bus Switch Matrix EXACT Ring 12-15 To order documentation, send email to: [email protected] 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: [email protected] PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE PMC-980237 (R5) 1999 PMC-Sierra, Inc. September, 1999 EXACT is a trademark of PMC-Sierra, Inc.