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參數(shù)資料
| 型號(hào)： | PI7C7300DNAE |
| 廠商： | Pericom |
| 文件頁(yè)數(shù)： | 29/107頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC PCI-PCI BRIDGE 3PORT 272-BGA |
| 標(biāo)準(zhǔn)包裝： | 40 |
| 系列： | * |
| 應(yīng)用： | * |
| 接口： | * |
| 電源電壓： | * |
| 封裝/外殼： | 272-BBGA |
| 供應(yīng)商設(shè)備封裝： | 272-PBGA（27x27） |
| 包裝： | 管件 |
| 安裝類(lèi)型： | 表面貼裝 |
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PI7C7300D
3-PORT PCI-TO-PCI BRIDGE
Page 28 of 107
Pericom Semiconductor
November 2005 - Revision 1.01
Non-prefetchable behavior is used for I/O and configuration read transactions, as well as
for memory read transactions that fall into non-prefetchable memory space.
If extra read transactions could have side effects, for example, when accessing a FIFO,
use non-prefetchable read transactions to those locations. Accordingly, if it is important
to retain the value of the byte enable bits during the data phase, use non-prefetchable
read transactions. If these locations are mapped in memory space, use the memory read
command and map the target into non-prefetchable (memory-mapped I/O) memory space
to use non-prefetching behavior.
4.7.3
READ PREFETCH ADDRESS BOUNDARIES
PI7C7300D imposes internal read address boundaries on read pre-fetched data. When a
read transaction reaches one of these aligned address boundaries, the PI7C7300D stops
pre-fetched data, unless the target signals a target disconnect before the read pre-fetched
boundary is reached. When PI7C7300D finishes transferring this read data to the
initiator, it returns a target disconnect with the last data transfer, unless the initiator
completes the transaction before all pre-fetched read data is delivered. Any leftover pre-
fetched data is discarded.
Prefetchable read transactions in flow-through mode pre-fetch to the nearest aligned 4KB
address boundary, or until the initiator de-asserts FRAME#. Section 4.7.6 describes flow-
through mode during read operations.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PI7C7300EVB | 功能描述:界面開(kāi)發(fā)工具 3 Port PCI Bridge Eval Brd RoHS:否 制造商:Bourns 產(chǎn)品:Evaluation Boards 類(lèi)型:RS-485 工具用于評(píng)估:ADM3485E 接口類(lèi)型:RS-485 工作電源電壓:3.3 V |
| PI7C8140A | 制造商:PERICOM 制造商全稱(chēng):Pericom Semiconductor Corporation 功能描述:2 PORT PCI TO PCI BRIDGE PLX PCI 6140 COMPARISON |
| PI7C8140AEVB | 功能描述:界面開(kāi)發(fā)工具 2 Port PCI to PCI Bridge Eval Brd RoHS:否 制造商:Bourns 產(chǎn)品:Evaluation Boards 類(lèi)型:RS-485 工具用于評(píng)估:ADM3485E 接口類(lèi)型:RS-485 工作電源電壓:3.3 V |
| PI7C8140AMA | 制造商:PERICOM 制造商全稱(chēng):Pericom Semiconductor Corporation 功能描述:2-Port PCI-to-PCI Bridge |
| PI7C8140AMAE | 功能描述:外圍驅(qū)動(dòng)器與原件 - PCI PCI -to -PCI Bridge 2 Port RoHS:否 制造商:PLX Technology 工作電源電壓: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FCBGA-1156 封裝:Tray |
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