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| PM4351 COMET Combined E1/T1/J1 Transceiver/Framer FEATURES * Monolithic 3.3 V device that integrates an E1/T1/J1 Framer and line driver for shorthaul and longhaul applications. * Software selectable between T1/J1 and E1 operation on a per device basis. * Provides fully programmable shorthaul and longhaul pulse templates and line build out. * Meets or exceeds T1, J1, and E1 shorthaul and longhaul network access specifications, which include: ANSI T1.102, T1.403, T1.408, AT&T TR 62411, ITU-T G.703 and G.823, as well as the newer G.775 and ETSI 300-011 specifications. * Supports B8ZS, HDB3, and AMI line codes. * Provides receive clock recovery and line performance monitoring. * Provides on-board binary sequence generators and detectors that can be configured with various patterns for error testing, including those conforming to ITU-T 0.151. * Provides transmit and receive jitter attenuation. * Provides three full-featured HDLC controllers, each with 128-byte transmit and receive FIFOs, enabling dual compliance to the V5.1 and V5.2 interface standards. * Supports an IEEE P1149.1 JTAG test port. * Automatically generates DS1 performance report messages to ANSI T1.231 and other specifications. * Compatible with Mitel ST-bus, AT&T CHI, and MVIP PCM backplanes supporting rates of 1.544 Mbit/s, 2.048 Mbit/s, 4.096 Mbit/s and 8.192 Mbit/s. * Provides an 8-bit microprocessor bus interface for configuration, control, and status monitoring. * Low power +3.3 V CMOS technology. * Available in an 80-pin PQFP (14 mm by 14 mm) and an 81-pin CABGA (9 mm by 9 mm) package. * Provides a -40 C to +85 C industrial temperature operating range. RECEIVE * Provides single-rail digital PCM and signaling outputs for 1.544 Mbit/s, 2.048 Mbit/s, 4.096 Mbit/s, or 8.192 Mbit/s backplane buses. * Guaranteed signal recovery of up to -36 dB at 1024 kHz (E1) and 772 kHz (T1/J1) under production test conditions (VDD = 3.069 V, 25 C) using PIC-22 gauge cable emulation. * Frames to a G.704 E1 signal. * Frames to a JT-G704 J1 signal. * Frames to a DSX/DS-1 signal in D4, SF, ESF, or SLC96 formats. * Accommodates up to 0.4 UI peak-topeak, high frequency jitter as required by AT&T TR 62411. * Supports line and path performance monitoring to AT&T and ANSI specifications and ITU-T recommendations. * Detects both programmable in-band loopback activate and deactivate code sequences received in the DS1/E1 data stream. TRANSMIT * Supports transfer of transmitted PCM and signaling data from 1.544 Mbit/s, 2.048 Mbit/s, 4.096 Mbit/s, or 8.192 Mbit/s backplane buses. * Supports tristate line outputs. * Generates DSX-1 T1 shorthaul- and T1 longhaul-compatible pulses with programmable pulse shape to AT&T and ANSI specifications and ITU-T recommendations. * Generates G.703 E1 pulses. * Detects violations of the ANSI T1.403 12.5% pulse density rule over a moving 192-bit window. * Allows insertion of in-band loopback code sequences. * Supports transmission of the Alarm Indication Signal (AIS) or the yellow alarm signal in all formats. * Provides a FIFO for jitter attenuation in the transmit path. * Complies to all jitter attenuation, jitter transfer and residual jitter specifications required by AT&T TR 62411 and ETSI TBR12/13. BLOCK DIAGRAM XCLK /VCLK TXRING[1:0] TXTIP[1:0] RXRING RSYNC RVREF TCLKO TVREF RDAT RCLKI PMON Performance Monitor Counters ALMI Alarm Integrator PDVD Pulse Density Violation Detector BRIF Bit-Oriented Code Detector RDLC #3 HDLC Receiver RDLC #2 HDLC Receiver RDLC #1 HDLC Receiver RXTIP RX-ELST Elastic Store TCLKI TDAT D[7:0] A[8:0] RDB WRB CSB ALE RSTB INTB TDO TDI TCK TMS TRSTB TFP MPIF Microprocessor Interface XLPG Transmit LIU TJAT Transmit Digital Jitter Attenuator RLPS Receive LIU CSD Clock Synthesis and Distribution TOPS Timing Options IBCD PMON In-band Performance Loopback Monitor Code Counters Detector FRMR ALMI Frame Alarm Alignment, Integrator Alarm Extraction RJAT Receive Digital Jitter Attenuator IBCD In-Band Loopback Code Detector FRMR Frame Alignment, Alarm Extraction CDRC Clock and Data Recovery T1-XBAS/ E1-TRAN Basic Transmitter: Frame Generation, Alarm Insertion, XBOC Bit-Oriented Signaling Insertion, Trunk Conditioning Code Generator JTAG Test Access Port FRAM Framing RAM TDPR #3 HDLC Transmitter TDPR #2 HDLC Transmitter TDPR #1 HDLC Transmitter TX-ELST Elastic Store BTIF Backplane Transmit Interface PRGD RPSC BRIF E1/T11/2 Pattern Per-DS0 Backplane SIGX Generator/ Serial Receive Signalling Detector Controller Interface Extractor BRCLK BRFP BRPCM BRSIG (c) Copyright PMC-Sierra, Inc. 2001 PMC-1961230 (R3) PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS' INTERNAL USE BTPCM BTSIG BTFP BTCLK PM4351 COMET Combined E1/T1/J1 Transceiver/Framer APPLICATIONS * Wireless Base Transceiver Station and Digital LoopCarriers (DLCs). * BITS Timing Systems. * Integrated Access Device (IAD). * Channel and Data Service Units (CSU/DSU). * Enterprise Routers. * V5.1/V5.2 Interfaces. TYPICAL APPLICATIONS WIRELESS BASE TRANSCEIVER STATION (BTS) E1 or T1 PM4351 COMET ATM UNI & AAL2 Processing Modem PM7815 PALADIN-15 RF INTEGRATED ACCESS DEVICE (IAD) Ethernet (Data) 10 Base T PHY CrossConnect and Interworking T1 ATM or Packet PM4351 COMET E1 or T1 (Voice) PM4351 COMET BITS TIMING APPLICATION T1 BITS Timing Signal A PM4351 COMET PLL Recovered Timing T1 BITS Timing Signal B PM4351 COMET Timing Selector 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-1961230 (R3) (c) Copyright PMC-Sierra, Inc. 2001. All rights reserved. July 2001. SLC(R)96, ST, and CHI are registered trademarks of AT&T. COMET, PALADIN-15, and PMC-Sierra are trademarks of PMC-Sierra, Inc. PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS' INTERNAL USE |
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