Document Outline

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• FEATURES
• Quad (DS3184), triple (DS3183), dual (DS3182) or single (DS3181) with integrated LIU ATM / Packet PHYs for DS3 and E3
• Each port independently configurable
• Performs receive clock/data recovery and transmit wave shaping
• Jitter attenuators can be placed either in the receive or transmit paths
• Interfaces to 75( coaxial cable at lengths up to 380 meters or 1246 feet (DS3) or 440 meters or 1443 feet (E3)
• Uses 1:2 transformers on both Tx and Rx
• Requires minimal external components
• Universal PHYs map ATM cells and/or HDLC packets into DS3 or E3 data streams
• UTOPIA 2 or 3 or POS-PHY 2 or 3 interface with 8, 16, or 32 bit bus width up to 66 MHz
• Ports independently configurable for cell or packet traffic in POS-PHY bus modes
• Direct, PLCP and clear-channel cell mapping
• Direct and clear-channel packet mapping
• On-chip DS3 (M23 or C-bit) and E3 (G.751 or G.832) framers
• Ports independently configurable for DS3, E3 or arbitrary framing protocol up to 52 Mbps
• Programmable (externally controlled or internally hardware based engine) subrate DS3/E3 circuitry
• Full featured DS3/E3/PLCP alarms
• Built-in HDLC controllers with 256 byte FIFOs for DS3 PMDL, G.751 Sn bit or G.832 NR/GC bytes
• On-chip BERTs for PRBS and repetitive pattern generation, detection and analysis
• Large performance-monitoring counters for accumulation intervals up to 1 second
• Flexible overhead insertion/extraction ports for DS3, E3 and PLCP framers
• Loopback include line, diagnostic, framer payload and system interface
• Ports can be disabled to reduce power
• Integrates clock rate adapter to generate the required 44.736 MHz for DS3, 34.368 MHz for E3, and/or 52 MHz for arbitrary framing protocol up to 52 Mbps
• 8/16-bit generic microprocessor interface
• Low power 3.3V operation (5V tolerant I/O)
• Small high-density Thermally Enhanced (TE) Chip Scale BGA packaging
• Industrial temperature range: -40 to +85(C
• IEEE 1149.1 JTAG test port
• FUNCTIONAL DIAGRAM
• ORDERING INFORMATION
• Commercial Temperature Range (0(C to 70(C)
• DS3181Single400-lead TE-CSBGA
• DS3182Dual400-lead TE-CSBGA
• DS3183Triple400-lead TE-CSBGA
• DS3184Quad400-lead TE-CSBGA
• Industrial Temperature Range (-40(C to 85(C)
• DS3181NSingle400-lead TE-CSBGA
• DS3182NDual400-lead TE-CSBGA
• DS3183NTriple400-lead TE-CSBGA
• DS3184NQuad400-lead TE-CSBGA
• DESCRIPTION
• The DS3184 (quad), DS3183 (triple), DS3182 (dual), and DS3181 (single) PHYs perform all of the functions necessary for mapping/demapping ATM cells and/or packets into as many as four DS3/E3 data streams on T3 or E3 physical copper lines. Each lin
• BLOCK DIAGRAMS
• Figure 1-1 shows the external components required at each LIU interface for proper operation. Figure 1-2 shows the functional block diagram of one channel ATM / Packet PHY.
• Figure 1-1 LIU External Connections
• Figure 1-2 Functional Block Diagram
• APPLICATIONS
• Access Concentrators
• Multi-Service Access Platforms
• ATM and Frame Relay Equipment
• Routers and Switches
• SONET/SDH ADM
• SONET/SDH Muxes
• PBXs
• Digital Cross Connect
• PDH Multiplexer/Demultiplexer
• Test Equipment
• The following figures, Figure 2-1 and Figure 2-2, show applications for DS3184 as four port unchannelized ATM and packet T3/E3 line cards, respectively.
• Figure 2-1 Four-Port Unchannelized ATM over T3/E3 Line Card
• Figure 2-2 Four-Port Unchannelized HDLC over T3/E3 Line Card
• FEATURE DETAILS
• The following sections describe the features provided by the DS3184 (quad), DS3183 (triple), DS3182 (dual), and DS3181 (single) PHYs.
  • Global Features
• System interface configurable for UTOPIA 2 / UTOPIA 3 for ATM cell traffic or POS-PHY 2 / POS-PHY 3 for HDLC or mixed packet/cell traffic
• Supports the following transmission protocols:
• Direct-mapped ATM over DS3 or subrate DS3
• PLCP-mapped ATM over DS3
• Direct-mapped ATM over G.751 E3 or subrate G.751 E3
• PLCP-mapped ATM over G.751 E3
• Direct-mapped ATM over G.832 E3 or subrate G.832 E3
• Direct-mapped ATM over externally-defined frame formats up to 52 Mbps
• Clear-channel ATM (cell-based physical layer) at line rates up to 52 Mbps
• Direct-mapped HDLC over DS3 or subrate DS3
• Direct-mapped HDLC over G.751 E3 or subrate G.751 E3
• Direct-mapped HDLC over G.832 E3 or subrate G.832 E3
• Direct-mapped HDLC over externally-defined frame formats up to 52 Mbps
• Clear-channel HDLC at line rates up to 52 Mbps
• In UTOPIA bus mode, ports are independently configurable for any ATM protocol
• In POS-PHY bus mode, ports are independently configurable for any ATM or HDLC protocol
• Provides all necessary I/O to support externally controlled subrate DS3 or E3 on any ports
• Supports gapped 52 MHz clock rates for signals embedded in SONET/SDH
• Clock, data and control signals can be inverted to allow a glueless interface to other devices
• Detection of loss of transmit clock and loss of receive clock
• Manual or automatic one-second update of performance monitoring counters
• Each port can be put into a low-power standby mode when not being used
  • Receive DS3/E3 LIU Features
• AGC/Equalizer block handles from 0 dB to 15 dB of cable loss
• Loss-of-lock PLL status indication
• Interfaces directly to a DSX monitor signal (20 dB flat loss) using built-in pre-amp
• Digital and analog Loss of Signal (LOS) detectors (ANSI T1.231 and ITU G.775)
• Per-channel power-down control
  • Receive DS3/E3 Framer Features
• Frame synchronization for M23 or C-bit Parity DS3, G.751 E3 or G.832 E3
• B3ZS/HDB3 decoding
• Detection and accumulation of bipolar violations (BPV), code violations (CV), excessive zeroes occurrences (EXZ), F-bit errors, M-bit errors, FAS errors, LOF occurrences, P-bit parity errors, CP-bit parity errors, BIP-8 errors, and far end block er
• Detection of RDI, AIS, DS3 idle signal, loss of signal (LOS), severely error framing event (SEFE), change of frame alignment (COFA), receipt of B3ZS/HDB3 codewords, DS3 application ID bit, DS3 M23/C-bit format mismatch, G.751 national bit, and G.83
• HDLC controller with 256 byte FIFO for DS3 path maintenance data link (PMDL), G.751 national bit, or G.832 NR/GC channels
• FEAC controller with four-codeword FIFO for DS3 FEAC channel
• 16-byte Trail Trace Buffer compares and stores G.832 trail access point identifier
• C bits configurable as payload or overhead
• Most framing overhead fields presented on the receive overhead port
• Framer pass-through mode for clear channel applications and externally defined frame formats
• Built-in support for subrate DS3/E3
  • Receive PLCP Framer Features
• PLCP frame synchronization
• C1 cycle/stuff counter interpretation
• Detection of out of frame (OOF), BIP-8 errors, FEBE and RAI (Yellow Signal)
• Frame timing is presented on the 8KREFO output pin
• All path overhead fields presented on the PLCP receive overhead port
  • Receive Cell Processor Features
• HEC-based cell delineation within the DS3/E3 frame, the PLCP frame, an externally defined frame, or the entire line bandwidth
• Cell descrambling using the self-synchronizing scrambler (x43+1) for ATM over DS3/E3 or the distributed sample scrambler for clear-channel ATM (cell-based physical layer)
• HEC error detection and correction; HEC discard
• Filtering of idle, unassigned and/or invalid cells (provisionable)
• Header pattern comparison vs. 32-bit header pattern and mask registers; counting of matching or non-matching cells; discard of matching or non-matching cells
• Four-cell Receive FIFO
• Controls include enables/disables/settings for: cell processing, coset polynomial addition, error correction, erred cell extraction, cell descrambling, idle/unassigned/invalid cell filtering, header pattern match counting/discarding, LCD integration time
• Status fields include: out of cell delineation (OCD), loss of cell delineation (LCD) and receipt of idle, unassigned, invalid, erred, corrected or header-pattern-match cells
• Performance monitoring counters for forwarded cells, corrected cells, uncorrectable cells, header pattern match/no-match cells, and filtered idle/unassigned/invalid cells
  • Receive Packet Processor Features
• Packet descrambling using the self-synchronizing scrambler (x43+1)
• Flag detection, packet delineation, and interframe fill discard (flags and all-ones)
• Packet abort detection and accumulation
• Bit or octet destuffing
• FCS checking (16-bit or 32-bit), error accumulation, and FCS discard
• Packet size checking vs. programmable minimum and maximum size registers
• Abort declaration for packets with non-integral number of bytes
• Controls include enables/disables/settings for: packet processing, descrambling, 16/32-bit FCS, filtering of FCS erred packets, FCS discard, minimum/maximum packet size
• Status fields include: receipt of FCS erred packet, aborted packet, size violation packet, non-integer-length packets
• Performance monitoring counters for forwarded packets, forwarded bytes, aborted bytes, FCS erred packets, aborted packets, size violation packets (min, max, non-integer-length)
  • Receive FIFO Features
• Storage capacity for four cells or 256 bytes of packet data
• Programmable port address
• Programmable fill level thresholds
• Underflow and overflow status indications
  • Receive System Interface Features
• UTOPIA 2 / UTOPIA 3 interface in cell mode, POS-PHY 2 / POS-PHY 3 interface in packet or mixed traffic modes
• 8, 16, or 32 bit data bus at clock rates from 10 MHz to 66 MHz
• Polled and direct cell available outputs
• Controls include enables/disables/settings for: HEC transfer, signal inversions, parity enable/polarity, cell available desertion time
  • Transmit System Interface Features
• UTOPIA 2 / UTOPIA 3 interface in cell mode, POS-PHY 2 / POS-PHY 3 interface in packet or mixed traffic modes
• 8, 16, or 32 bit data bus at clock rates from 10 MHz to 66 MHz
• Polled and direct cell available outputs
• Controls include enables/disables/settings for: HEC transfer, signal inversions, parity enable/polarity, cell available desertion time
  • Transmit FIFO Features
• Storage capacity for four cells or 256 bytes of packet data
• Programmable port address
• Programmable fill level thresholds
• Underflow and overflow status indications
  • Transmit Cell Processor Features
• Programmable fill cell type
• HEC calculation and insertion/overwrite, including coset addition
• Cell scrambling using the self-synchronizing scrambler (x43+1) for ATM over DS3/E3 or the distributed sample scrambler for clear-channel ATM (cell-based physical layer)
• Single-bit and multiple-bit header error insertion for diagnostics
• Controls include enables/disables/settings for: cell processing, HEC insertion, coset polynomial addition, cell scrambling, fill cell type, error insertion type/rate/count, HEC bit corruption
• Counter for number of cells read from the transmit FIFO
• Cell mapping into the DS3/E3 frame, the PLCP frame, an externally defined frame, or the entire line bandwidth
  • Transmit Packet Processor Features
• FCS calculation (16-bit or 32-bit) and insertion/overwrite
• Programmable FCS error insertion for diagnostics
• Bit or octet stuffing
• Programmable inter-frame fill insertion (flags or all-ones)
• Automatic packet abort insertion
• Packet scrambling using the self-synchronizing scrambler (x43+1)
• Controls include enables/disables/settings for: packet processing, FCS insertion or overwrite, 16/32-bit FCS, inter-frame fill type/length, scrambling, FCS error insertion type/rate/count
• Counters for number of packets and bytes read from the transmit FIFO
  • Transmit PLCP Formatter Features
• Insertion of FAS bytes (A1, A2), path overhead identification (POI) bytes, and path overhead bytes
• Generation of BIP-8 (B1), FEBE and RAI (G1)
• C1 cycle/stuff counter generation referenced to the 8KREFI input pin, referenced to the received PLCP timing, or based on a fixed stuff pattern
• Automatic or manual insertion of FAS errors, BIP-8 errors
• All path overhead fields can be sourced from the PLCP transmit overhead port
  • Transmit DS3/E3 Formatter Features
• Insertion of framing overhead for M23 or C-bit parity DS3, G.751 E3 or G.832 E3
• B3ZS/HDB3 encoding
• Generation of RDI, AIS, DS3 idle signal, and G.832-E3 RDI
• Automatic or manual insertion of bipolar violations (BPVs), excessive zeroes (EXZ) occurrences, F-bit errors, M-bit errors, FAS errors, P-bit parity errors, CP-bit parity errors, BIP-8 errors, and far end block errors (FEBE)
• HDLC controller with 256 byte FIFO for DS3 path maintenance data link (PMDL), G.751 national bit, or G.832 NR or GC channels
• FEAC controller for DS3 FEAC channel can be configured to send one codeword, one codeword continuously, or two different codewords back-to-back to send DS3 Line Loopback commands
• 16-byte Trail Trace Buffer sources the G.832 trail access point identifier
• Insertion of G.832 payload type and timing marker bits from registers
• C bits configurable as payload or overhead; as overhead they can be controlled from registers or the transmit overhead port
• Most framing overhead fields can be sourced from transmit overhead port
• Formatter pass-through mode for clear channel applications and externally defined frame formats
• Built-in support for subrate DS3/E3
  • Transmit DS3/E3 LIU Features
• Wide 50(20% transmit clock duty cycle
• Line Build-Out (LBO) control
• Tri-state line driver outputs support protection switching applications
• Per-channel power-down control
• Output driver monitor
  • HDLC Controller Features
• 256-byte receive and transmit FIFOs
• Handles all of the normal Layer 2 tasks including zero stuffing/destuffing, FCS generation/checking, abort generation/checking, flag generation/detection, and byte alignment
• Programmable high or low water marks for the transmit and receive FIFOs
• Terminates the Path Maintenance Data Link in DS3 C-bit Parity mode or the G.751 Sn bit or the G.832 NR or GC channels
  • FEAC Controller Features
• Designed to handle multiple FEAC codewords without Host intervention
• Receive FEAC automatically validates incoming codewords and stores them in a 4-codeword FIFO
• Transmit FEAC can be configured to send one codeword, one codeword continuously, or two different codewords back-to-back to send DS3 Line Loopback commands
• Terminates the FEAC channel in DS3 C-Bit Parity mode or the Sn bit in E3 mode
  • Trail Trace Buffer Features
• Extraction and storage of the incoming G.832 trail access point identifier in a 16-byte receive register
• Insertion of the outgoing trail access point identifier from a 16-byte transmit register
• Receive trace identifier unstable status indication
  • Bit Error Rate Tester (BERT) Features
• Generates and detects pseudo-random patterns and repetitive patterns from 1 to 32 bits in length
• Supports pattern insertion/extraction in PLCP payload, DS3/E3 payload, or entire data stream
• Large 24-bit error counter allows testing to proceed for long periods without host intervention
• Errors can be inserted in the generated BERT patterns for diagnostic purposes (single bit errors or specific bit-error rates)
  • Jitter Attenuator Features
• Fully integrated, requires no external components
• Standards-compliant jitter attenuation/jitter transfer
• Can be inserted into the receive path or the transmit path
• 16-bit buffer depth
  • Loopback Features
• Line terminal loopback (transmit to receive)
• Line facility loopback (receive to transmit) with optionally transmitting unframed all-one payload toward system/trunk interface
• Framer diagnostic loopback (transmit to receive) with optionally transmitting unframed all-one signal toward line/tributary interface
• Simultaneous line facility loopback and framer diagnostic loopback
• Framer payload loopback (receive to transmit) with optionally transmitting unframed all-one payload toward system/trunk interface
• System interface loopback (transmit to receive)
  • Microprocessor Interface Features
• Multiplexed or non-multiplexed 8 or 16-bit control port
• Intel and Motorola bus compatible
• Global reset input pin
• Global interrupt output pin
• Two programmable I/O pins per port
  • Subrate Features
• Independent per port built-in support for subrate DS3 or E3
• Independent subrate operation for both Rx and Tx data paths
• Subrate operation for each channel is totally ind
• Three distinct subrate algorithms:
• (FFRAC) Externally controlled with DS3 or E3 payload manipulating capability
• (XFRAC) Externally controlled with simple DS3 or E3 data rate reduction capability
• (IFRAC) Internally controlled with flexible DS3 or E3 data rate reduction capability
• Subrate algorithm selection is on per port basis
• Internal subrate mechanism allows down to bit-level granularity of the DS3 or E3 payload
• STANDARDS COMPLIANCE
• Specification
• Specification Title
• ANSI
• T1.102-1993
• Digital Hierarchy – Electrical Interfaces
• T1.107-1995
• Digital Hierarchy – Formats Specification
• T1.231-1997
• Digital Hierarchy – Layer 1 In-Service Digital Tr
• T1.404-1994
• Network-to-Customer Installation – DS3 Metallic I
• T1.646-1995
• Broadband ISDN – Physical Layer Specification for
• ATM Forum
• af-phy-0034.000
• E3 Public UNI, August, 1995
• af-phy-0039.000
• UTOPIA Level 2, Version 1.0, June, 1995
• af-phy-0043.000
• A Cell-Based Transmission Convergence Sublayer for Clear Channel Interfaces, November, 1995
• af-phy-0054.000
• DS3 Physical Layer Interface Specification, January, 1996
• af-phy-0136.000
• UTOPIA 3 Physical Layer Interface, November, 1999
• af-phy-0143.000
• Frame-based ATM Interface (Level 3), March, 2000
• af-bici-0013.003
• BISDN Inter Carrier Interface (B-ICI) Specification Version 2.0 (Integrated), December, 1995
• ETSI
• ETS 300 686
• Business TeleCommunications; 34Mbps and 140Mbits/s digital leased lines (D34U, D34S, D140U and D140S); Network interface presentation, 1996
• ETS 300 687
• Business TeleCommunications; 34Mbps digital leased lines (D34U and D34S); Connection characteristics, 1996
• TBR 24
• Business TeleCommunications; 34Mbps digital unstructured and structured lease lines; attachment requirements for terminal equipment interface, 1997
• ETS 300 337
• Transmission and Multiplexing (TM); Generic frame structures for the transport of various signals (including Asynchronous Transfer Mode (ATM) cells and Synchronous Digital Hierarchy (SDH) elements) at the ITU-T Recommendation G.702 hierarchical r
• ETS 300 689
• Business TeleCommunications (BTC); 34 Mbps digital leased lines (D34U and D34S), Terminal equipment interface, V 1.2.1, 2001-07
• IEEE
• IEEE Std 1149-1990
• IEEE Standard Test Access Port and Boundary-Scan Architecture, (Includes IEEE Std 1149-1993) October 21, 1993
• IETF
• RFC 1661
• The Point-to-Point Protocol (PPP), July, 1994
• RFC 1662
• PPP in HDLC-like Framing, July, 1994
• RFC 2496
• Definition of Managed Objects for the DS3/E3 Interface Type, January, 1999
• ISO
• ISO 3309:1993
• Information Technology – Telecommunications & inf
• ITU-T
• G.703
• Physical/Electrical Characteristics of Hierarchical Digital Interfaces, 1991
• G.704
• Synchronous Frame Structures Used at 1544, 6312, 2048, 8488 and 44 736 kbit/s Hierarchical Levels, July, 1995
• G.751
• Digital Multiplex Equipment Operating at the Third Order Bit Rate of 34,368 kbit/s and the Fourth Order bit Rate of 139,264 kbit/s and Using Positive Justification, 1993
• G.775
• Loss Of Signal (LOS) and Alarm Indication Signal (AIS) Defect Detection and Clearance Criteria, November, 1994
• G.804
• ATM Cell Mapping Into Plesiochronous Digital Hierarchy (PDH), November, 1993
• G.823
• The Control of Jitter and Wander Within Digital Networks Which are Based on the 2048 kbit/s Hierarchy, 1993
• G.832
• Transport of SDH Elements on PDH Networks – Frame
• I.432
• B-ISDN User-Network Interface – Physical Layer Sp
• O.151
• Error Performance Measuring Equipment Operating at the Primary Rate and Above, October, 1992
• Q.921
• ISDN User-Network Interface – Data Link Layer Spe
• OIF
• OIF-SPI3-01.0
• System Packet Interface Level 3 (SPI-3): OC-48 System Interface for Physical and Link Layer Devices
• Saturn( Group
• POS-PHY 2
• POS-PHYTM Level 2 Packet Over SONET Interface Specification for Physical Layer Devices, December, 1998
• POS-PHY 3
• POS-PHY Level 3 Packet Over SONET Interface Specification for Physical and Link Layer Devices, June, 2000
• Telcordia
• GR-253-CORE
• SONET Transport Systems: Common Generic Criteria, Issue 2, December 1995
• GR-499-CORE
• Transport Systems Generic Requirements (TSGR): Common Requirements, Issue 2, December 1998
• GR-820-CORE
• Generic Digital Transmission Surveillance, Issue 1, November 1994
• Saturn and POS-PHY are trademarks of PMC-Sierra, Inc.
• PACKAGE MECHANICAL DIMENSIONS
• The target package is a 27x27 mm 400-lead TE-CSBGA with ball pitch of 1.27mm for all port density configuration.
• POWER ESTIMATE
• Current typical power estimate is 2.7 Watts at 3.3V (pending mode of operation).