參數(shù)資料
型號: LSIFC909
英文描述: LSIFC909 Fibre Channel I/O Processor technical manual v2.1 8/00
中文描述: LSIFC909光纖通道I / O處理器技術(shù)手冊2.1 8 / 00
文件頁數(shù): 19/144頁
文件大?。?/td> 1496K
代理商: LSIFC909
Initiator Operations
1-7
1.3.6 Integrated 1 Gbaud Transceiver
The integrated 1 Gbaud transceiver provides a FC compliant physical
interface for cost conscience and real estate limited applications.
1.3.6.1 Transmitter
The transmitter builds sequences based on context information and
transmits resulting frames to the FC link using the Link Controller. The
transmitter includes two 2 Kbyte buffers to support frame payloads.
1.3.6.2 Receiver
The receiver accepts frame data from the Link Controller and DMAs the
encapsulated information to local or system memory. The receiver
contains three 2 Kbyte buffers which support a BB-Credit of up to three
or an alternate login BB-Credit of one.
1.3.7 Context Manager
The LSIFC909 uses a second ARM RISC processor to support I/O
context swap to external memory and FCP management for both initiator
and target applications. Context operations include support for transmit
and resource queue management as well as Scatter Gather List (SGL)
management.
1.4 Initiator Operations
The LSIFC909 autonomously handles FCP exchanges upon request
from the host. The LSIFC909 generates appropriated sequences and
frames necessary to complete the request and provides feedback to the
host on the status of the request.
1.5 Target Operations
The LSIFC909 provides for general purpose target functions such as
those required for front-end RAID applications.
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