 |
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
| Datasheet File OCR Text: |
| PMC-Sierra,Inc. PM7322 RCMP-800 * Policing done according to the Virtual Scheduling Algorithm (equivalent to Continuous-State Leaky Bucket Algorithm). * Two instantiations of policing per VC. ATM Layer Cell Routing Control, Monitoring, and Policing 800 Mbit/s FEATURES * Monolithic single-chip device which handles ATM switch ingress VPI/VCI address translation, cell appending, cell rate policing, counting, and OAM requirements for 65,536 Virtual Circuits (VCs). * Instantaneous transfer rate of 800 Mbit/s supports a cell transfer rate of 1.42 x 106 cells/s. * 8- or16-bit PHY interface using direct addressing for up to four PHYs (UTOPIA Level 1) and Multi-PHY addressing for up to 32 PHYs (UTOPIA Level 2). * 8- or 16-bit SCI-PHYTM+ (53 -64 byte extended ATM cell with prepend/ postpend) interface at output to switch fabric. * Compatible with wide range of switching fabrics and traffic management architectures including per-VC or per-PHY queuing. * Provides identification/tagging of RM cells to support adjunct processing applications such as Virtual Source/ Virtual Destination (VS/VD) Available Bit Rate (ABR) service. * Supports logical multicast. * Extremely flexible CAM-type cell identification that uses arbitrary VPI/ VCI values and/or appended bytes for identification. * Drops on command all low priority (CLP=1) cells to relieve switch congestion. * Includes 16-bit FIFO buffered microprocessor bus interface for cell extraction and insertion (including OAM), VC table access, control and status monitoring, and configuration of the IC. * Supports DMA access for cell extraction and insertion. * Low power, 0.6 micron, +5 V CMOS technology. * 240 copper slugged Plastic Quad Flat Pack (PQFP) package. OAM HANDLING AND PERFORMANCE MONITORING * VC OAM performance monitoring per ITU Recommendation I.610, Bellcore TR-1248, and Bellcore GR-1113CORE. * Automatic OAM handling includes: reception and generation of AIS and RDI cells. * OAM cell identification/tagging provided to enable direct extraction by egress device, eliminating delays through switch core. * Incoming OAM cells are terminated, passed to device output or microprocessor. * Outgoing OAM cells sourced from automatic OAM generating circuitry, device input, or microprocessor. CELL COUNTING * Per-VC counts maintained for low priority cells, high priority cells, cells discarded due to policing/congestion, and cells with a reduced priority. * Per-VC performance monitoring counts maintained include: lost cells, misinserted cells, BIP-16 errors, and Severely Errored Cell Blocks (SECB). * Generates backwards reporting cells. * Per-device counts maintained include: total cells input, total cells output, OAM cells, cells discarded due to congestion, corrupted OAM cells, and unassigned/invalid VPI/VCIs. APPLICATIONS * ATM Hubs and Workgroup Switches * ATM Enterprise and Edge Switches BLOCK DIAGRAM 7 U T S U d ) ( b 6 T B I P 8 7 @ P T UA@rhyAS6H A d d ) 7 ( ) T " # b X 9 b S 6 9Q T T TT 7 T V 7 P 9 U D 9 U F 8 U T H U EU6B UrA6pprA Q @rhyA S6HA 6qqrA Gx A8ryy Qpr AHvpprA S6H 6ivhv TT8GF D96Ub DQSUb $)d )d P96Ub $)d )d r p h s r D A C Q D 8 T y y r p A H U 6 A q r q r h PASUb PTP8 PA8GF P86 PA DA ADAP DTP8 DAG8F D6W6GD9D86b#d D699Sb#)"dD86b")!d D86b d PS9@I7 P7VT' PUT@I ADAP D699Sb!)dDXS@I7b#)!d DXS@I7b d DQPGG D7VT' 6yyA7ypx A ! A A A y r r G A h v V r p h s r D POLICING * Policing performed for adherence to: Peak Cell Rate (PCR), Sustained Cell Rate (SCR), and Burst Tolerance (BT). Violating cells can be noted, dropped, or have Cell Loss Priority (CLP) bits set to 1. PMC-941029 (R5) PI@T@8 Hvppr Drshpr Hvp 8ryy 7ssr d ) $ b 9 d ) % b 6 @ G 6 7 T 8 7 S X 7 9 S 7 U T S 7 U I D R @ S 9 (c)A1998 PMC-Sierra, Inc. September, 1998 PM7322 RCMP-800 ATM Layer Cell Routing Control, Monitoring, and Policing 800 Mbit/s TYPICAL APPLICATIONS SINGLE-PHY OC-12/STM-4 (622 Mbit/s) SWITCH PORT Physical Layer ATM Layer Switch Fabric PM5355 OC-12 Optical Module 681, PM7322 TM 5&03 622 Mbit/s SATURNTM User Network Interface ATM Layer Cell Routing, Control, Monitoring, and Policing 800 Mbit/s Egress Device MULTI-PHY OC-3/STM-1 (155 Mbit/s) SWITCH PORT Physical Layer ATM Layer Switch Fabric OC-3 Optical Module OC-3 Optical Module OC-3 Optical Module OC-3 Optical Module PM5347 681,3/86 TM PM7322 5&03 PM5347 681,3/86 TM ATM Layer Cell Routing, Control, Monitoring, and Policing 800 Mbit/s PM5347 681,3/86 TM PM5347 681,3/86 Egress Device TM Head Office: PMC-Sierra, Inc. #105 - 8555 Baxter Place Burnaby, B.C. V5A 4V7 Canada Tel: 604.415.6000 Fax: 604.415.6200 To order documentation, send email to: document@pmc-sierra.com or contact the head office, Attn: Document Coordinator All product documentation is available on our web site at: http://www.pmc-sierra.com For corporate information, send email to: info@pmc-sierra.com PMC-941029 (R5) (c) 1998 PMC-Sierra, Inc. September, 1998 SATURN, SCI-PHY, S/UNI-155-PLUS, and S/UNI-622 are trademarks of PMC-Sierra, Inc. |
Price & Availability of 1941029
 |
|
|
|
|
All Rights Reserved © IC-ON-LINE 2003 - 2022 |
| [Add Bookmark] [Contact Us] [Link exchange] [Privacy policy] |
|
Mirror Sites : [www.datasheet.hk]
[www.maxim4u.com] [www.ic-on-line.cn]
[www.ic-on-line.com] [www.ic-on-line.net]
[www.alldatasheet.com.cn]
[www.gdcy.com]
[www.gdcy.net] |