PMC-Sierra PM5355 Features

PMC-Sierra,Inc.
622 Mbit/s SATURN User Network Interface
FEATURES
®
• Monolithic SATURN -compatible
SONET/SDH ATM User Network
Interface (UNI) for LAN, Public UNI, and
Public NNI connections.
• Implements the ATM Transmission
Convergence (TC) sublayer according to
ATM Forum specifications using the
SONET/SDH 622.08 Mbit/s and
155.52 Mbit/s formats.
• Also supports the SONET 51.84 Mbit/s
format.
• Processes all SONET/SDH UNI
overhead.
• Inserts and extracts ATM payloads using
ATM cell delineation.
• Provides a SCI-PHY™-compliant 50 MHz
synchronous 16-bit (4-cell deep) FIFO
buffers in both transmit and receive paths.

BLOCK DIAGRAM

TSICLK
TSOUT
FPOUT
POUT[7:0]
OOF
Line Side
PICLK
Interface
FPIN
FPOS
PIN[7:0]
RSICLK
RSIN
PMC-940402 (R5)
• Compatible with ATM Forum UTOPIA
interface format, with support for multi-
PHY applications.
• Provides access to section and line
datalinks and all additional overhead to
allow external processing for full
SONET/SDH Network-Node Interface
(NNI) compliance.
• Provides a generic 8-bit
microprocessor bus interface for
configuration, control, and status
monitoring.
• Provides a standard 5-signal P1149.1
JTAG test port for boundary scan
board test purposes.
• Provides TTL-compatible inputs and
outputs.
• Low power, +5 V CMOS technology.
Transport
O/H
Insert
Transmit
Section
Transmit
O/H Byte-
Line O/H
Processor Interleaved
Processor
Mux
Section
Trace
Buffer
Receive Byte-
Receive
Line O/H Interleaved
Section
Processor Demux
O/H
Processor
Transport
O/H
Extract
Path
Parallel
O/H
Input/Output
Insert
Port
Transmit Path
Transmit
O/H Processor
ATM Cell
Transmit ConCat
Processor
Processor Path
Trace
Receive
Buffer
Receive ConCat
Processor
ATM Cell
Processor
Receive Path
O/H Processor
Path O/H
Extract
• Packaged in a 208-pin, 28 mm by
28 mm slugged Plastic Quad Flat Pack
(PQFP) with 0.5 mm pin pitch.
APPLICATIONS
• Workstations and Personal Computer
• LAN Switches and Hubs
• Routers
• Video Servers
• Backbones
• Broadband Switching Systems
• Test Equipment
JTAG Test
Access Port
Transmit
ATM 4-Cell
FIFO
Drop
Side
Receive
Interface
ATM 4-Cell
FIFO
Microprocessor
Interface
©1998 PMC-Sierra, Inc. October, 1998
PM5355
S/UNI-622
TSOC
TDAT[15:0]
TXPRTY[1:0]
TCA
TWRENB
TFCLK
RSOC
RDAT[15:0]
RXPRTY[1:0]
RCA
RRDENB
RFCLK