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PM5346 Datasheet(PDF) 1 Page - PMC-Sierra, Inc |
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PM5346 Datasheet(HTML) 1 Page - PMC-Sierra, Inc |
1 / 2 page PMC-930908 (R9) PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE 1998 PMC-Sierra, Inc. October, PM5346 PMC-Sierra,Inc. 155 Mb/s SATURN User Network Interface for LANs S/UNI-155-LITE FEATURES • Low-cost, monolithic SATURN® SONET/SDH ATM User Network Interface (UNI). • 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 51.84 Mbit/s STS-1 formats. • Supports ATM-Forum mid-range PHY and PMC-Sierra UNI-PHY™ subrates at 25.92 and 12.96 Mbit/s. • Supports UTP-5 or STP twisted pair wiring interface devices and optical driver and receiver modules for fiber optic cable interfaces. • Includes on-chip, Bellcore-compliant clock recovery and clock synthesis. • Operates in timing master or timing slave (loop timed) modes. • Frames to SONET/SDH framing bytes (A1 and A2), processes the section and line Bit Interleaved Parity (B1 and 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 Generic Flow Control (GFC) and XOFF flow control. • Provides a synchronous, 8-bit, plus- parity SATURN-Compliant Interface for PHYsical layer devices (SCI-PHY™) bus operating at 33 MHz. • Compatible with ATM Forum UTOPIA interface format, with support for multi- PHY applications. • 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. APPLICATIONS • 155.52, 51.84, 25.92 and 12.96 Mbit/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 Clock Generator TRCLK+ TRCLK- TXC+ TXC- TXD+ TSOC TXD- RXDO+ ALOS+ ALOS- Microprocessor Interface Driver Parallel to Serial Serial to Parallel Data Recovery RXD+ RXD- RXDO- Clock Recovery RRCLK+ RRCLK- Transmit Framer and Overhead Processor Receive Framer and Overhead Processor Transmit ATM Cell Processor Receive ATM Cell Processor Transmit ATM Cell FIFO Receive ATM Cell FIFO TXPRTY TDAT[7:0] TFCLK TWRENB TCA RSOC RXPRTY RDAT[7:0] TSEN RFCLK RRDENB RCA Line Side System Side BLOCK DIAGRAM |
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