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參數(shù)資料
| 型號(hào)： | PM7323-SI |
| 廠商： | PMC-SIERRA INC |
| 元件分類： | 數(shù)字傳輸電路 |
| 英文描述： | ROUTING CONTROL, MONITORING, & POLICING 200 MBPS |
| 中文描述： | ATM SWITCHING CIRCUIT, PQFP240 |
| 封裝： | 32 X 32 MM, 3.40 MM HEIGHT, 0.50 MM PITCH, HEAT SINK, PLASTIC, QFP-240 |
| 文件頁(yè)數(shù)： | 21/219頁(yè) |
| 文件大?。?/td> | 695K |
| 代理商： | PM7323-SI |
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STANDARD PRODUCT
PM7323 RCMP-200
DATASHEET
PMC-960543
ISSUE 2
ROUTING CONTROL, MONITORING, & POLICING
200 MBPS
Proprietary and Confidential to PMC-Sierra, Inc.
and for its Customer’s Internal Use.
10
6
DESCRIPTION
The PM7322 Routing Control, Monitoring and Policing 200 Mbps (RCMP-200)
device is a monolithic integrated circuit that implements ATM layer functions that
include fault and performance monitoring, header translation and cell rate
policing. The RCMP-200 is intended to be situated between a switch core and
the physical layer devices in the ingress direction. The RCMP-200 supports a
sustained aggregate throughput of 0.355x10
6
cells/s. The RCMP-200 uses
external SRAM to store per-VPI/VCI data structures. The device is capable of
supporting up to 65536 connections.
The Input Cell Interface can be connected to up to 32 physical layer devices
through a SCI-PHY compatible bus. The 53 byte ATM cell is encapsulated in a
data structure which can contain pre-pended or post-pended routing information.
Received cells are buffered in a four cell deep FIFO. All Physical Layer and
unassigned cells are discarded. For the remaining cells, a subset of ATM header
and appended bits is used as a search key to find the VC Table Record for the
virtual connection. If a connection is not provisioned and the search terminates
unsuccessfully as a result, the cell is discarded and a count of invalid cells is
incremented. If the search is successful, subsequent processing of the cell is
dependent on contents of the cell and configuration fields in the VC Table
Record.
The RCMP-200 performs header translation if so configured. The ATM header is
replaced by contents of fields in the VC Table Record for the connection. The VCI
contents are passed through transparently for VPCs. Appended bytes can be
replaced, added or removed.
If the RCMP-200 is the end point for a F4 or F5 OAM stream, the OAM cells are
dropped and processed. If the RCMP-200 is not the end point, the OAM cells
are passed to the Output Cell Interface with an optional copy passed to the
Microprocessor Cell Buffer. The reception of an AIS or RDI cell results in the
appropriate alarm. Upon the arrival of a Forward Monitoring or
Monitoring/Reporting cell, error counts are updated and a Backward Reporting
cell is optionally generated. Activate/Deactivate cells are passed to the
Microprocessor Cell Buffer for external processing. Continuity Check cells can
be generated if no user cells have been received in the latest 1.5 +/- 0.5 or 2.5
+/- 0.5 (default) seconds.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PM7324 | SATURN User Network Interface ATM Layer Solution |
| PM7324-BI | S/UNI-ATM LAYER SOLUTION |
| PM7325 | S/UNI-ATLAS-3200 Telecom Standard Product Data Sheet Preliminary |
| PM7325-TC | S/UNI-ATLAS-3200 Telecom Standard Product Data Sheet Preliminary |
| PM7326 | ATM/PACKET Traffic Manager and Switch |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PM7324 | 制造商:PMC 制造商全稱:PMC 功能描述:S/UNI-ATM LAYER SOLUTION |
| PM7324BI | 制造商:PMC-Sierra 功能描述: |
| PM7324-BI | 制造商:PMC 制造商全稱:PMC 功能描述:S/UNI-ATM LAYER SOLUTION |
| PM7325 | 制造商:PMC 制造商全稱:PMC 功能描述:2.4 Gbit/s ATM Layer Solution |
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