PM7345 Datasheet, PDF (1/2 Pages) PMC-Sierra, Inc – SATURN User Network Interface for PDH Applications

PMC-Sierra,Inc.
SATURN User Network Interface for PDH Applications
PM7345
S/UNI-PDH
FEATURES
• Monolithic single-chip ATM User-
Network Interface (UNI) for DS3, E3,
DS1, and E1 Plesiochronous Digital
Hierarchy (PDH) applications.
• Provides on-chip DS3 (M23 or C-bit
parity) and E3 (G.751 and G.832)
framers.
• Implements the ATM direct cell
mapping into DS1, DS3, E1, and E3
transmission systems according to
ITU-T Recommendation G.804.
• Implements the ATM physical layer for
Broadband ISDN according to ITU-T
Recommendation I.432.
• Implements the Physical Layer
Convergence Protocol (PLCP) for DS1
and DS3 transmission systems
according to the ATM Forum User
Network Interface Specification and
ANSI TA-TSY-000773, TA-TSY-
000772 and E1 and E3 transmission
systems according to ETSI 300-269
and ETSI-270.
• Provides UTOPIA L1-compliant ATM-
PHY interface.
• Supports DS3 FEAC code insertion/
detection and provides an integral
HDLC transceiver for path
maintenance datalink processing.
• Supports G.832 Trail Trace and
provides an integral HDLC transceiver
that supports the Network
Requirement or General Purpose
datalinks.
• Provides detection of DS3/E3 Loss Of
Frame (LOF) and yellow alarm.
• Accumulates BIP-8, framing and FEBE
events.
• Provides ATM cell scrambling/
descrambling, HCS error detection and
correction, HCS insertion, idle/
unassigned ATM cell filtering and
insertion, and accumulates counts of
transmitted and received cells.
• Provides DS3/E3 diagnostic loopback,
line loopback, payload loopback and
ATM cell loopback.
• Provides support for an arbitrary rate
external transmission line interface up
to a maximum rate of 52 Mbit/s.
• Uses PMC-Sierra PM4341A T1XC T1,
PM6341 E1XC E1, or PM4351
COMET framer/line interface devices
for DS1, E1, and J1 ATM UNI
applications.
• Software-compatible with the
PM4341A T1XC, PM6341 E1XC,
PM4351 COMET, PM5346 S/UNI^®-
LITE, and PM7344 S/UNI-MPH.
• Application-compatible with the
PM8313 D3MX, PM4314 QDSX, and
PM7323 RCMP-200.
• Provides an 8-bit microprocessor
interface for configuration, control, and
status monitoring.
• Low power CMOS technology.
• Available in a high density 100-pin
PQFP package (14 by 14 mm).
APPLICATIONS
• ATM Switches
• ATM Routers
• ATM Network Interfaces
• DSLAMs
• ATM / SMDS Test Equipment
BLOCK DIAGRA
TCLK
TPOS/TDAT
TNEG/TOHM
RCLK
RPOS/RDAT
RNEG/ROHM
XBOC
Transmit
FEAC
XFDL
Transmit
HDLC
Transmit
O/H
Access
1/2 TTB
Transmit
Trail-
Buffer
Line
Encode
TRAN
DS3 or E3
Transmit Framer
SPLT
Transmit
ATM and PLCP
Framer
TXCP
Transmit
Cell
Processor
TXFF
Transmit
4-Cell
FIFO
Line
Encode
FRMR
DS3 or E3
Receive Framer
ATMF/SPLR
Receive
ATM and PLCP
Framer
RXCP
Receive
Cell
Processor
RXFF
Receive
4-Cell
FIFO
RBOC
Receive
FEAC
RFDL
Receive
HDLC
PMON
Perfor-
mance
Monitor
Receive
O/H
Access
1/2 TTB
Receive
Trail
Buffer
CPPM
PLCP/cell
Performance
Monitor
MPIF
Microprocessor
Interface
System
Interface
FWDATA[7:0]
TFCLK
TWRENB
TSOC
TCA
TXPRTY
RSOC
REOH
REOC
RCA
RXPRTY
RRDENB
RFCLK
FRDATA[7:0]
TSEN
PMC-931209 (R6)
© 1998 PMC-Sierra, Inc. September, 1998