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PMC-Sierra,Inc.
PM5350 S/UNI-155-ULTRA
* Operates in timing master or timing slave (loop timed) modes. * Frames to SONET/SDH framing bytes (A1, A2), processes the section and line Bit Interleaved Parity (B1, B2) and the Far-End Block Error (Z2) bytes. * Interprets the H1, H2, and H3 payload pointer bytes. * Processes the SONET path overhead BIP-8 (B3), signal label (C2) and path status (G1) bytes. * Inserts and extracts ATM payloads using ATM cell delineation. * Provides on-chip FIFO buffers in both transmit and receive paths. * Provides on-chip support for GFC and XOFF flow control. * Provides a synchronous 8-bit plus parity SATURN-Compliant Interface for PHYsical layer devices (SCI-PHYTM) bus operating at 50 MHz. * Compatible with ATM Forum UTOPIA interface format. * Provides a generic 8-bit microprocessor bus interface for configuration, control, and monitoring. * Provides TTL-compatible inputs and outputs and differential PECL inputs. * Low power, +5 V CMOS technology. * Packaged in a 128-pin, 14 mm by 20 mm Plastic Quad Flat Pack (PQFP) with 0.5 mm lead pitch.
155 Mb/s SATURN User Network Interface
FEATURES
* Low-cost, monolithic SONET/SDH ATM User Network Interface (UNI) for category-5 (UTP-5), Shielded Twisted Pair (STP) and optical applications. * Implements the ATM Transmission Convergence (TC) sublayer according to ATM Forum specifications using the SONET/SDH 155.52 Mb/s STS- 3c/ STM-1 and 51.84 Mb/s STS-1 formats. * Provides on-chip UTP/STP drivers, receivers, and line equalizers to allow direct connection to 155 Mb/s UTP-5 or STP twisted pair wiring facilities using line coupling transformers. * Provides a selectable UTP/STP or Pseudo-ECL (PECL) interface to allow direct connection to Optical Data Links (ODLs). * Includes clock recovery and clock synthesis with on-chip loop filters. SATURN(R)
APPLICATIONS
* 155.52 or 51.84 Mb/s twisted pair or optical ATM LANs * Workstations and Personal Computer NIC Cards * Switches, Hubs, and Router Port Cards * SONET- or SDH-Compliant ATM UNIs
BLOCK DIAGRAM
REFCLK TRREF TVREF TGFC XOFF TCLK ATP2 TCP TFP
Clock Generator TXD+ TXDTwisted Pair Tx Parallel to Serial Transmit Framer and Overhead Processor Transmit ATM Cell Processor Transmit ATM 4-Cell FIFO
TSOC TXPRTY TDAT[7:0] TCA TWRENB
Analog Edge
TFCLK RSOC RXPRTY Serial to Parallel Receive Framer and Overhead Processor Receive ATM Cell Processor Receive ATM 4-Cell FIFO RDAT[7:0] RCA RRDENB RFCLK TSEN LED Control Microprocessor Interface
RXD+ RXD-
Twisted Pair Rx
Clock/Data Recovery
SD
RCLK
RFP
PECLSEI
OUT[1:0]
RGFC
RCP
RCAP1
RCAP2
PMC-960709 (R4)
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS' INTERNAL USE
D[7:0] A[10:0] ALE CSB WRB RDB RSTB INTB 1998 PMC-Sierra, Inc.
ATP1
PM5350 S/UNI-155-ULTRA 155 Mb/s SATURN User Network Interface
TYPICAL APPLICATION
ATM ADAPTER INTERFACE
SCI-PHY/UTOPIA Interface
RCA RXPRTY
Receive AAL Processor
RDAT[7:0] RSOC RRDENB RFCLK RXD+
Receive RJ-45
ATM Terminal
TXPRTY TDAT[7:0]
RXDPM5350 (R)-ULTRA S/UNI 155 Mbit/s SATURN(R) User Network Interface TXD+
UTP-5 Facility Magnetics
Transmit AAL Processor
TSOC TFCLK TWRENB TCA TXD-
Transmit
REFCLK
19.44 MHz Oscillator
Head Office: PMC-Sierra, Inc. #105 - 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-960709 (R4) 1998 PMC-Sierra, Inc. October, 1998 SATURN, SCI-PHY, and S/UNI-155-ULTRA are trademarks of PMC-Sierra, Inc.
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS' INTERNAL USE

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