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| PMC-Sierra,Inc. PM5348 S/UNI-155-DUAL * Operates in timing master or timing slave (loop timed LAN) modes. * Frames to SONET 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. * Allows for protection switching by monitoring the APS (K1, K2) bytes, bit error rate thresholds and far-end synchronization status (S1) bits and providing interrupts when error conditions are detected.* * Inserts and extracts ATM payloads using ATM cell delineation. * Provides on-chip 4-cell FIFO buffers in both transmit and receive paths. * Operates with a backward compatible dual 8-bit plus parity or a multi-PHY compatible 16-bit plus parity* SATURN-Compliant Interface for PHYsical layer devices (SCI-PHYTM). * Cell interface is also compatible with ATM Forum Level 2 UTOPIA directmode specifications. * Provides a generic 8-bit microprocessor bus interface for configuration, control, and monitoring. * Provides TTL/CMOS compatible inputs and outputs and differential PECL inputs. * Low power, +5 V CMOS technology. * Packaged in a 28 mm by 28 mm 160pin Plastic Quad Flat Pack (PQFP). *NOTE:Indicates new features not provided on S/UNI-155-LITE. Two-Channel ATM SATURN User Network Interface FEATURES * Provides two independent compatible ATM PHY channels in one chip. * Provides hardware and software backward compatibility with the industry-standard PM5346 S/UNI(R)-155-LITE chip. * Implements the ATM Transmission Convergence (TC) sublayer according to ATM Forum specifications using the SONET/SDH 155.52 Mbit/s STS-3c/ STM-1 and SONET 51.84 Mbit/s STS-1 formats. * NRZ data format supports category-5 Unshielded Twisted Pair (UTP-5) or Shielded Twisted Pair (STP) wiring and optical datalink modules for fiber optic cable. * Includes on-chip clock recovery and clock synthesis, compliant to Bellcore and ITU-T requirements. SATURN(R)- APPLICATIONS * ATM Switches and Hubs * ATM Routers * Multichannel ATM Servers BLOCK DIAGRAM RCLK1 TCLK LF1+ LF1LFO1 Line Side System Side RXD1+ RXD1ALOS1+ ALOS1TFP TXD1+ TXD1REFCLK+ REFCLKTATP TXD2+ TXD2- Clock and Data Recovery Serial to Parallel Receive Framer and Overhead Processor RFP Receive ATM Cell Processor Receive ATM 4-Cell FIFO TSOC[2:1] TXPRTY[1:0] TDAT[15:0] TCA[2:1] TWRENB[2:1] SCI-PHY Interface TFCLK RSOC[2:1] RXPRTY[1:0] RDAT[15:0] RCA[2:1] RRDENB[2:1] RFCLK TSEN Driver Clock Generator Driver Parallel to Serial Parallel to Serial Transmit Framer and Overhead Processor Transmit Framer and Overhead Processor Receive Framer and Overhead Processor Transmit ATM Cell Processor Transmit ATM Cell Processor Transmit ATM 4-Cell FIFO Transmit ATM 4-Cell FIFO RXD2+ RXD2ALOS2+ ALOS2Analog Edge Clock and Data Recovery Serial to Parallel Receive ATM Cell Processor Receive ATM 4-Cell FIFO Microprocessor Interface Output Port JTAG LF2+ LF2LFO2 RCLK2 RALM1 RALM2 OUT1 OUT2 PMC-950446 (R4) (c) 1998 PMC-Sierra, Inc. October, 1998 TDO TDI TCK TMS TRSTB D[7:0] A[8:0] ALE CSB WRB RDB RSTB INTB PM5348 S/UNI-155-DUAL Two-Channel ATM SATURN User Network Interface TYPICAL APPLICATIONS Split 8-bit bus mode for backward compatibility with multiple single-PHY applications. Applications: * Multi-SAR Servers * Single-channel, 8-bit, 25 MHz ATM Layer Devices Independent 25 MHz, 8-Bit Buses PM5348 S/UNI(R)-155-DUAL Two-Channel ATM SATURN(R) User Network Interface ATM Layer ASIC or SAR ASIC ATM Layer ASIC or SAR ASIC Shared 8-bit bus mode for 8-bit direct mode multi-PHY applications. Applications: * Two-channel, 8-bit, 50 MHz ATM Layer Devices Shared 50 MHz, 8-Bit Buses PM5348 S/UNI(R)-155-DUAL Two-Channel ATM SATURN(R) User Network Interface ATM Layer ASIC Shared 16-bit bus mode for 16-bit direct mode multi-PHY applications. Applications: * Four-channel, 16-bit, 50 MHz ATM Layer Devices Shared 50 MHz, 16-Bit Buses PM5348 S/UNI(R)-155-DUAL Two-Channel ATM SATURN(R) User Network Interface ATM Layer ASIC PM5348 S/UNI(R)-155-DUAL Two-Channel ATM SATURN(R) User Network Interface 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-950446 (R4) (c) 1998 PMC-Sierra, Inc. October, 1998 SATURN, SCI-PHY and S/UNI are trademarks of PMC-Sierra, Inc. |
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