參數(shù)資料
型號: PM2329
英文描述: Telecommunication IC
中文描述: 通信集成電路
文件頁數(shù): 67/162頁
文件大小: 1581K
代理商: PM2329
Proprietary and Confidential to PMC-Sierra, Inc and for its Customers
Internal Use
Document ID: PMC-2010146, Issue 4
70
PM2329 ClassiPI Network Classification Processor Datasheet
Each PM2329 in the cascade has its CID pins uniquely wired to the supply rails. These CID pins are
sampled on reset, thereby assigning a unique CID# (0 to 7) to each PM2329. Rules participating in an OC
running across multiple PM2329 devices are now prioritized by CID# of the PM2329 to which they
belong. Thus, for any OC, all the rules within PM2329 #0 will have a higher priority than rules for that OC
within PM2329 #1. Priority decreases with increasing CID#; the priority of a rule match is automatically
determined among the PM2329 devices by communication over the Cascade interface.
OCs can be processed as "single hit" or "multiple hit" OCs, referring to the number of matches that should
be processed before execution is terminated and a result is returned. In the case of a single-hit OC, a single
result is generated--the result of the first match found. In case of a multi-hit OC, a result is generated for
each match found. A single-hit OC execution is terminated as soon as the first (highest priority) match is
found. In case of a multi-hit OC, all the rules in the OC are executed and all matches are returned (in order
of priority) The external processor need not determine in which PM2329 a match has occurred, since the
appropriate information is returned when it reads the globally accessible Results FIFO.
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