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PM7345 Scheda tecnica(PDF) 1 Page - PMC-Sierra, Inc |
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PM7345 Scheda tecnica(HTML) 1 Page - PMC-Sierra, Inc |
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1 / 2 page  PMC-931209 (R6) © 1998 PMC-Sierra, Inc. September, 1998 PM7345 PMC-Sierra,Inc. SATURN User Network Interface for PDH Applications 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 RBOC Receive FEAC MPIF Microprocessor Interface RCLK RPOS/RDAT RNEG/ROHM TCLK TPOS/TDAT TNEG/TOHM Transmit O/H Access XFDL Transmit HDLC XBOC Transmit FEAC 1/2 TTB Transmit Trail- Buffer Receive O/H Access PMON Perfor- mance Monitor RFDL Receive HDLC 1/2 TTB Receive Trail Buffer CPPM PLCP/cell Performance Monitor RXCP Receive Cell Processor RXFF Receive 4-Cell FIFO TXCP Transmit Cell Processor TXFF Transmit 4-Cell FIFO SPLT Transmit ATM and PLCP Framer Line Encode FRMR DS3 or E3 Receive Framer TRAN DS3 or E3 Transmit Framer Line Encode RXPRTY RRDENB RFCLK FRDATA[7:0] TCA TXPRTY TWRENB TSOC FWDATA[7:0] TFCLK RSOC REOC RCA REOH TSEN System Interface ATMF/SPLR Receive ATM and PLCP Framer |
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