PM8379 PMC | Alldatasheet
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PMC-2031144 PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., © Copyright PMC-Sierra, Inc. 2004. Issue 2 AND FOR ITS CUSTOMERS’ INTERNAL USE All rights reserved. 20-Port 4.25 Gbit/s FC-AL Cut-Through Switch The CTS 20x4G is designed to interface directly to Fibre Channel disk drives in a storage array. It can interface directly to optics or to cables at the ingress/egress point of an enclosure and is able to determine if an incoming frame is destined for a drive within that enclosure. After determining which port is associated with the frames recipient, a cut through operation to that port is performed thereby significantly reducing system latency and improving perfor- mance. The CTS 20x4G provides unique disk isolation features that significantly increase total system availability, reliability, and serviceability.
FEATURES
- 20 independent rate selectable 1.0625, 2.125 or 4.25 Gbit/s physical interfaces. Register and software compatible to the PM8368 PBC 18x2G, PM8369 PBC 18x4G, PM8372 PBC 4x2G and PM8377 PBC 4x4G. Compliant to FC jitter specifications on a per-port basis. Supports single-ended or differential 106.25 MHz reference clock. Per port monitoring and diagnostics: LPSM Monitoring on each port. Disk isolation and per port serial loopback. Configurable Digital Loss of Link: analog LOS Detect, 8B/10B disparity errors/error rate, CRC errors/error rate, word synchronization error/error rate, and compliant frequency of comma patterns detected (configurable thresholds for each with corresponding pin interrupts). Built-in self test capability with FC Frame Generator/Comparator. Supports a 106.25 MHz, 40-bit (20 receive + 20 transmit) DDR parallel interface that acts as a 21st port. This flexible interface enables external functions such as enclosure management or other user-proprietary functions to be implemented using a low cost FPGA. CUT-THROUGH SWITCHING Integrated cut-through switching and arbitration management enables up to 200% improvement in EDR and IOPS. Parallel arbitration supported with arbitration priority and access fairness preserved. Automatic or CPU controlled initialization of AL_PA table. Supports dynamic half duplex, half/full duplex operation, LPSM transfer state, multicast/broadcast (OPNy). BLOCK DIAGRAM TX SERDES RX FIFO RX FIFO RX FIFO RX FIFO CTS Logic JTAG CONTROLCDRU TX FIFORDIN[0] RDIN[1] RDIN[19] TDON[0] CPU TCK TMS TDO TDI TRSTB CLK_SEL FULL_RATE REFCLK_S REFCLK_P REFCLK_N EXTCAP DVPRTAD[5:0] MDC_SCL MDIO_SDA TWI_SEL RESETB DEVBYPSB INTRB DLOLB DLOLBYP_MSK RECEQUALIZ[1:0] PREEMPH[1:0] TRUST_MODE MON_BYP_PORT BYPASS[20:0] OENB TX FIFO RXCLK RXD[19:0] RDIP[0] RDIP[1] RDIP[19] RX SERDES Frame Generator Frame Comparator Arb Mgmt AL_PA Table Cut Thru Mgmt TX FIFO TDOP[0] TDON[1] TDOP[1] TDON[19] TDOP[19] TXD[19:0] TXCLK
Head Office: PMC-Sierra, Inc.
8555 Baxter Place
Burnaby, B.C. V5A 4V7 Canada Tel: 1.604.415.6000 Fax: 1.604.415.6200 20-Port 4.25 Gbit/s FC-AL Cut-Through Switch To order documentation, send email to: document@pmc-sierra.com or contact the head office, Attn: Document Coordinator PMC-2031144 (a2) For a complete list of PMC-Sierra’s trademarks, see our web site at http://www.pmc-sierra.com/legal/ Other product and company names mentioned herein may be the trademarks of their respective owners. PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE PM8379 CTS 20x4G 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 Disk 4 Disk 10 Disk 5 Disk 0 Disk 17 Disk 11 PM8378 CTS 20x4G PM8378 CTS 20x4G Link Card for HDD Port A
18 Disk SBOD/MBOD/JBOD
Note: Each signal contains one Bypass and one FC Port line. Disk 4 Disk 10 Disk 5 Disk 0 Disk 17 Disk 11 PM8378 CTS 20x4G PM8378 CTS 20x4GOptics Optics Link Card for HDD Port A Note: Each signal contains one Bypass and one FC Port line. FC Port FC Port 1.0625 or 2.125 or
4.25 Gbit/s
1.0625 or 2.125 or Fibre Channel Disk Enclosure TYPICAL APPLICATIONS HIGH-SPEED INTERFACE Independent per-channel selectable high-speed outputs support 8 levels of programmable pre-emphasis and 8 levels of output swing. Selectable pre- emphasis counteracts dielectric losses and allow maximum reach on printed circuit boards. Independent per-channel selectable high-speed inputs support 30 levels of programmable receive equalization for improved signal integrity. Integrated 100 Ω differential termination for signal integrity, smaller solution footprint, and lower component count. TEST AND CONTROL Supports optional 2-pin serial management interface using selectable Two-Wire Interface (TWI) protocol for configuration and diagnostic access. Digital Loss of Link (DLOLB) detect outputs for monitoring individual or multiple links. DLOLB can be programmed to indicate excessive 8B/10B code error rate, loss of synchronization, loss of signal, CRC32 errors, or comma density. External control pins can be overridden by registers. Interrupt output to flag changes in bypass state and DLOLB error conditions. Supports built-in self-test (BIST) via internal Fibre Channel pattern generation and checking. Supports internal serial loop back modes for each port for testing and debugging. Provides a standard 5-signal IEEE
1149.1 JTAG test port for boundary
scan board testing purposes. PHYSICAL 0.13 um (1.2 V Core and 3.3 V I/O supply) CMOS technology. 27 mm x 27 mm 352-pin CSBGA+. Ultra-low operating power of 6.5 W typical with all 20 channels active at 4.250 Gbit/s.
APPLICATIONS
SBOD Storage Systems. MBOD Storage Systems. RAID Storage Systems. JBOD Storage Systems. FC to SATA Storage Systems. FC-AL Nodes. Fibre Channel Hubs. 1.0625, 2.125, and 4.25 Gbit/s Backplanes.