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參數(shù)資料
| 型號(hào)： | PI7C7100BNA |
| 英文描述： | PCI Bus Interface/Controller |
| 中文描述： | PCI總線接口/控制器 |
| 文件頁數(shù)： | 39/118頁 |
| 文件大小： | 2962K |
| 代理商： | PI7C7100BNA |
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PI7C7100
ADVANCE INFORMATION
5. Posted write transactions must be given opportunities to pass delayed read and write requests and completions.
Otherwise, deadlocks may occur when some bridges which support delayed transactions and other bridges which do
not support delayed transactions are being used in the same system. A fairness algorithm is used to arbitrate between
the posted write queue and the delayed transaction queue.
6.4 Data Synchronization
Data synchronization refers to the relationship between interrupt signaling and data delivery. The PCI Local Bus
Specification, Revision 2.1, provides the following alternative methods for synchronizing data and interrupts:
The device signaling the interrupt performs a read of the data just written (software).
The device driver performs a read operation to any register in the interrupting device before accessing data
written by the device (software).
System hardware guarantees that write buffers are flushed before interrupts are forwarded.
PI7C7100 does not have a hardware mechanism to guarantee data synchronization for posted write transactions.
Therefore, all posted write transactions must be followed by a read operation, either from the device to the location just
written (or some other location along the same path), or from the device driver to one of the device registers.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PI7C7100 | 3-Port PCI Bridge |
| PI7C7100CNA | 3-Port PCI Bridge |
| PI7C7300 | 3-PORT PCI-to-PCI BRIDGE |
| PI7C7300A | 3-PORT PCI-to-PCI BRIDGE |
| PI7C7300ANA | 3-PORT PCI-to-PCI BRIDGE |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PI7C7100CNA | 制造商:PERICOM 制造商全稱:Pericom Semiconductor Corporation 功能描述:3-Port PCI Bridge |
| PI7C7300 | 制造商:PERICOM 制造商全稱:Pericom Semiconductor Corporation 功能描述:3-PORT PCI-to-PCI BRIDGE |
| PI7C7300A | 制造商:PERICOM 制造商全稱:Pericom Semiconductor Corporation 功能描述:3-PORT PCI-to-PCI BRIDGE |
| PI7C7300AEVB-3 | 功能描述:界面開發(fā)工具 3 Port PCI Bridge Eval Brd RoHS:否 制造商:Bourns 產(chǎn)品:Evaluation Boards 類型:RS-485 工具用于評(píng)估:ADM3485E 接口類型:RS-485 工作電源電壓:3.3 V |
| PI7C7300ANA | 制造商:Pericom Semiconductor Corporation 功能描述:PCI-to-PCI Bridge 272-Pin BGA 制造商:Pericom Semiconductor Corporation 功能描述:PCI to PCI Bridge 272-Pin BGA |
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