PMC-Sierra PM5350 Features

PMC-Sierra,Inc.
155 Mb/s SATURN User Network Interface
FEATURES
• Low-cost, monolithic SATURN
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.

BLOCK DIAGRAM

TXD+
Twisted
Pair Tx
TXD-
Analog Edge
Twisted
RXD+
Pair Rx
RXD-
SD
PMC-960709 (R4) PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS' INTERNAL USE
• 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-PHY™)
bus operating at 50 MHz.
Clock
Generator
Parallel
to
Serial
Serial
Clock/Data
to
Recovery
Parallel
LED
Control
• Compatible with ATM Forum UTOPIA
• Provides a generic 8-bit
• Provides TTL-compatible inputs and
• Low power, +5 V CMOS technology.
• Packaged in a 128-pin, 14 mm by
• 155.52 or 51.84 Mb/s twisted pair or
• Workstations and Personal Computer
• Switches, Hubs, and Router Port
• SONET- or SDH-Compliant ATM UNIs
Transmit
Transmit
Framer and
ATM Cell
Overhead
Processor
Processor
Receive
Receive
Framer and
ATM Cell
Overhead
Processor
Processor
PM5350
S/UNI-155-ULTRA
interface format.
microprocessor bus interface for
configuration, control, and monitoring.
outputs and differential PECL inputs.
20 mm Plastic Quad Flat Pack (PQFP)
with 0.5 mm lead pitch.
APPLICATIONS
optical ATM LANs
NIC Cards
Cards
TSOC
TXPRTY
Transmit
TDAT[7:0]
ATM
4-Cell FIFO TCA
TWRENB
TFCLK
RSOC
RXPRTY
RDAT[7:0]
Receive
ATM
RCA
4-Cell FIFO
RRDENB
RFCLK
TSEN
Microprocessor
Interface
1998 PMC-Sierra, Inc.