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| PMC-Sierra,Inc. PM7385 FREEDM-84A672 Frame Engine and Data Link Manager FEATURES * Single-chip multi-channel HDLC controller with a 50 MHz, 16 bit AnyPHYTM Packet Interface (APPI) for transfer of packet data using an external controller. * Supports up to 672 bi-directional HDLC channels assigned to a maximum of 84 channelised or unchannelised links conveyed via a 19.44 MHz Scalable Bandwidth Interconnect (SBITM) interface. * Data on the SBI interface is divided into three Synchronous Payload Envelopes (SPEs). Each SPE can be configured independently to carry data for either 28 T1/J1 links, 21 E1 links, or one unchannelised DS-3 link. * Supports three bi-directional HDLC channels each assigned to an unchannelised link with arbitrary rate link of up to 51.84 MHz when SYSCLK is running at 45 MHz. Each link may be configured individually to replace one of the SPEs conveyed on the SBI interface. * For each channel, the HDLC receiver supports programmable flag sequence detection, bit de-stuffing and frame check sequence validation. The receiver supports the validation of both CRC-CCITT and CRC-32 frame check sequences. * For each channel, the HDLC transmitter supports programmable flag sequence generation, bit stuffing and frame check sequence generation. The transmitter supports the generation of both CRC-CCITT and CRC-32 frame check sequences. The transmitter also aborts packets under the direction of the external controller or automatically when the channel underflows. * Provides 32 Kbytes of on-chip memory for partial packet buffering in both the transmit and the receive directions. This memory may be configured to support a variety of different channel configurations from a single channel with 32 Kbytes of buffering to 672 channels, each with a minimum of 48 bytes of buffering. * Provides a 16 bit microprocessor interface for configuration and status monitoring. * Provides a standard five signal P1149.1 JTAG test port for boundary scan board test purposes. * Supports 3.3 Volt tolerant I/O. * 352 pin enhanced ball grid array (SBGA) package. APPLICATIONS * * * * * * PPP interfaces for routers. Internet/Edge Routers. Frame Relay/Multiservice Switches. Packet-based DSLAM equipment. Remote Access Concentrators. Multiservice Access Concentrators. RCLK[2:0] RD[2:0] RSTB SYSCLK PMCTEST C1FPOUT C1FP FASTCLK REFCLK SPE3_EN SPE2_EN SPE1_EN BLOCK DIAGRAM DDATA[7:0] DPL DV5 DDP SBI Extract Receive Channel Assigner (RCAS672) Receive HDLC Processor/ Partial Packet Buffer (RHDL672) Receive AnyPHY Packet Interface (RAPI672) Performance Monitor (PMON) ADATA[7:0] APL AV5 ADP AJUST_REQ AACTIVE ADETECT[1:0] TD [2:0] TCLK[2:0] Microprocessor Interface JTAG SBI Insert Transmit Channel Assigner (TCAS672) Transmit HDLC Processor/Partial Packet Buffer (THDL672) RXCLK RXADDR[2:0] RPA RENB RXDATA[15:0] RXPRTY RSX REOP RMOD RERR RVAL TXCLK TXADDR[12:0] TPA1[2:0] TPA2[2:0] TRDY TXDATA[15:0] TXPRTY TSX TEOP TMOD TERR Transmit AnyPHY Packet Interface (TAPI672) RDB CSB TRSTB INTB TMS TCK ALE TD1 D[15:0] A[11:2] WRB TD0 PMC-1991025 (r2) PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS' INTERNAL USE 2001 PMC-Sierra, Inc. PM7385 FREEDM-84A672 Frame Engine and Data Link Manager TYPICAL APPLICATIONS T1/E1 CHANNELIZED 622 MBIT/S INTERFACE TelecomBus SBI Bus PM7385 FREEDM84A672 Any-PHY (Packet) PM8316 TEMUX-84 PM8316 TEMUX-84 PM5313 SPECTRA-622 PM8316 TEMUX-84 Any-PHY Interface PM7385 FREEDM84A672 Multilink FR Voice over FR FUNI + AAL5 SAR Backkplane Bus Interface OC-12 PM7385 FREEDM84A672 PM8316 TEMUX-84 PM7385 FREEDM84A672 ATM MULTISERVICE SWITCH TelecomBus SBI Bus Any-PHY (Packet) Any-PHY (Cell) PM8316 TEMUX-84 PM7385 FREEDM84A672 Packet/Cell Internetworking Function PM8316 TEMUX-84 PM5313 SPECTRA622 PM8316 TEMUX-84 PM7341 S/UNI-IMA-84 Any-PHY APPI PM7326 S/UNI-APEX OC-12 PM73122 PM73122 AAL1gatorPM73122 AAL1gator32 AAL1gator32 32 PM7324 S/UNI-ATLAS H-MVIP PM8316 TEMUX-84 VoATM DSP Head Office: PMC-Sierra, Inc. 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-1991025 (r2) 2001 PMC-Sierra, Inc. All rights reserved. August 2001. S/UNI is a registered trademark and AAL1gator-32, FREEDM, SBI, Any-PHY, TEMUX-84, FREEDM-84A672, SPECTRA-622, and PMCSierra are trademarks of PMC-Sierra, Inc. PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS' INTERNAL USE |
Price & Availability of 1991045
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