參數(shù)資料
型號(hào): PM2329
英文描述: Telecommunication IC
中文描述: 通信集成電路
文件頁數(shù): 17/162頁
文件大?。?/td> 1581K
代理商: PM2329
Proprietary and Confidential to PMC-Sierra, Inc and for its Customers
Internal Use
Document ID: PMC-2010146, Issue 4
20
PM2329 ClassiPI Network Classification Processor Datasheet
2 Signal Description
2.1 Introduction
The PM2329 has three external interfaces to connect external devices:
System interface
Extended RAM (E-RAM) interface
Cascade interface
The System interface is a general purpose synchronous 64-bit interface over which the PM2329 can
connect to a processor and optionally a Packet Source or DMA device. This interface is designed to work
like a synchronous SRAM interface so that it can be connected to an external search machine interface or
memory interface on common network processors. On 32-bit platforms, this interface can be configured to
work in 32-bit mode.
The Extended RAM (E-RAM) interface is used in the Extended (single device or a cascaded set of devices)
mode of operation. This interface drives all the signals required for an external SRAM memory array.
The Cascade interface is used when multiple PM2329 devices are used in the Cascade mode. The cascade
mode of operation allows up to eight PM2329 devices to work together as one large logical PM2329.
Extended and Cascade modes are described in Sections 2.4.2 and 2.4.3, respectively.
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