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參數(shù)資料
| 型號： | PI7C8150ANDE |
| 廠商： | Pericom |
| 文件頁數(shù)： | 44/111頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC PCI-PCI BRIDGE 2PORT 256-PBGA |
| 標準包裝： | 90 |
| 系列： | * |
| 應(yīng)用： | * |
| 接口： | * |
| 電源電壓： | * |
| 封裝/外殼： | 256-BGA |
| 供應(yīng)商設(shè)備封裝： | 256-PBGA（17x17） |
| 包裝： | 管件 |
| 安裝類型： | 表面貼裝 |
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PI7C8150A
2-PORT PCI-TO-PCI BRIDGE
Page 38 of 111
APRIL 2006 – Revision 1.1
Table 3-8. Response to Posted Write Target Termination
Target Termination
Repsonse
Normal
No additional action.
Target Retry
Repeating write transaction to target.
Target Disconnect
Initiate write transaction for delivering remaining posted write data.
Target Abort
Set received-target-abort bit in the target interface status register. Assert
P_SERR# if enabled, and set the signaled-system-error bit in primary status
register.
Note that when a target retry or target disconnect is returned and posted write data
associated with that transaction remains in the write buffers, PI7C8150A initiates another
write transaction to attempt to deliver the rest of the write data. If there is a target retry, the
exact same address will be driven as for the initial write trans-action attempt. If a target
disconnect is received, the address that is driven on a subsequent write transaction attempt
will be updated to reflect the address of the current DWORD. If the initial write transaction
is Memory-Write-and-Invalidate transaction, and a partial delivery of write data to the
target is performed before a target disconnect is received, PI7C8150A will use the memory
write command to deliver the rest of the write data. It is because an incomplete cache line
will be transferred in the subsequent write transaction attempt.
After the PI7C8150A makes 2
24 (default) write transaction attempts and fails to deliver all
posted write data associated with that transaction, PI7C8150A asserts P_SERR_L if the
primary SERR_L enable bit is set (bit 8 of command register for secondary bus) and
posted-write-non-delivery bit is not set. The posted-write-non-delivery bit is the bit 2 of
P_SERR_L event disable register (offset 64h). PI7C8150A will report system error. See
Section 6.4 for a discussion of system error conditions.
3.8.3.3
DELAYED READ TARGET TERMINATION RESPONSE
When PI7C8150A initiates a delayed read transaction, the abnormal target responses can
be passed back to the initiator. Other target responses depend on how much data the
initiator requests. Table 3-9 shows the response to each type of target termination that
occurs during a delayed read transaction.
PI7C8150A repeats a delayed read transaction until one of the following conditions is met:
PI7C8150A completes at least one data transfer.
PI7C8150A receives a master abort.
PI7C8150A receives a target abort.
PI7C8150A makes 2
24 (default) read attempts resulting in a response of target retry.
Table 3-9. Response to Delayed Read Target Termination
Target Termination
Response
Normal
If prefetchable, target disconnect only if initiator requests more data than read
from target. If non-prefetchable, target disconnect on first data phase.
Target Retry
Re-initiate read transaction to target
Target Disconnect
If initiator requests more data than read from target, return target disconnect to
initiator.
06-0057
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PDF描述 |
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| PI7C8150BNDIE | IC PCI-PCI BRIDGE ASYNC 256-PBGA |
| PI7C8152BMAIE | IC PCI-PCI BRIDGE 2PORT 160-MQFP |
| PI7C8154ANAE | IC PCI-PCI BRIDGE ASYNC 304-PBGA |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PI7C8150B | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:PCI Bridge | Asynchronous 2-Port PCI Bridge |
| PI7C8150B-33 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:PCI Bridge | Asynchronous 2-Port PCI Bridge |
| PI7C8150BEVB | 功能描述:界面開發(fā)工具 2 Port PCI Bridge Eval Brd RoHS:否 制造商:Bourns 產(chǎn)品:Evaluation Boards 類型:RS-485 工具用于評估:ADM3485E 接口類型:RS-485 工作電源電壓:3.3 V |
| PI7C8150BMA | 制造商:PERICOM 制造商全稱:Pericom Semiconductor Corporation 功能描述:ASYNCHRONOUS 2-PORT PCI-TO-PCI BRIDGE |
| PI7C8150BMA-33 | 制造商:PERICOM 制造商全稱:Pericom Semiconductor Corporation 功能描述:ASYNCHRONOUS 2-PORT PCI-TO-PCI BRIDGE |
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