PM7384-1 PMC | Alldatasheet

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Technical content

PMC-1991024 (r2) PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE © 2001 PMC-Sierra, Inc. PM7384PMC-Sierra,Inc. Frame Engine and Data Link Manager FREEDM-84P672

FEATURES

  • Single-chip multi-channel HDLC controller with a 66 MHz, 32 bit PCI 2.1 compatible bus for configuration, monitoring and transfer of packet data.  On-chip DMA controller with scatter/ gather capabilities.  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 (SBI™) 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 host or automatically when the channel underflows.  Provides 32 Kbytes of on-chip memory for partial packet buffering in both the transmit and 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 standard five signal P1149.1 JTAG test port for boundary scan board test purposes.  Supports 3.3 Volt I/O on non-PCI signals. Supports 3.3 Volt PCI signaling environment.  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. DDATA[7:0] DPL DV5 DDP SBI Extract SBI Insert Transmit HDLC Processor (THDL672) Performance Monitor (PMON) ADATA[7:0] APL AV5 ADP AJUST_REQ AACTIVE ADETECT[1:0] AD[31:0] REQB LOCKB IDSEL DEVSELB STOPB IRDYB TRDYB FRAMEB PAR C/BEB[3:0] RSTB SYSCLK PMCTEST Receive DMA Controller (RMAC672) Transmit DMA Controller (TMAC672) GNTB PERRB SERRB PCIINTB PCICLK PCICLKO M66EN Receive Channel Assigner (RCAS672) Transmit Channel Assigner (TCAS672) Receive HDLC Processor (RHDL672) JTAG TD0 TD1 TCK TMS TRSTB RD[2:0] RCLK[2:0] PCI Controller (GPIC672) SPE1_EN SPE2_EN SPE3_EN REFCLK FASTCLK C1FP C1FPOUT TCLK[2:0] TD [2:0] BLOCK DIAGRAM

Head Office: PMC-Sierra, Inc.

8555 Baxter Place

Burnaby, B.C. V5A 4V7 Canada Tel: 604.415.6000 Fax: 604.415.6200 PM7384 FREEDM-84P672 Frame Engine and Data Link Manager 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-1991024 (r2) © 2001 PMC-Sierra, Inc. All rights reserved. August 2001 FREEDM-84P672, AAL1gator-32, SBI, TEMUX-84, Any-PHY, and PMC-Sierra are trademarks of PMC-Sierra, Inc. PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS ’ INTERNAL USE PM73122 AAL1gator-32 PCI Bus SBI Bus Any-PHY (Cell) OC-3 PM7341 S/UNI-IMA-84 AAL5 SAR Frame Relay Interworking Packet Memory Micro- processor PM5342 SPECTRA-155 PM8316 TEMUX-84 PM7384 FREEDM- 84P672 MULTISERVICE APPLICATION N X DS-3 CHANNELIZED INTERFACE SBI Bus Fractional DS-3 PM7384 FREEDM- 84P672 DS-3 LIU DS-3 LIU DS-3 LIU PCI Bus Packet Memory Micro- processor PM8316 TEMUX-84 TYPICAL APPLICATION