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參數(shù)資料
| 型號： | PI7C7300ANAE |
| 廠商： | Pericom |
| 文件頁數(shù)： | 38/109頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC PCI-PCI BRIDGE 3PORT 272-BGA |
| 產(chǎn)品變化通告： | Product Discontinuation 09/Dec/2010 |
| 標準包裝： | 40 |
| 系列： | * |
| 應用： | * |
| 接口： | * |
| 電源電壓： | * |
| 封裝/外殼： | 272-BBGA |
| 供應商設備封裝： | 272-PBGA（27x27） |
| 包裝： | 管件 |
| 安裝類型： | 表面貼裝 |
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PI7C7300A
3-PORT PCI-TO-PCI BRIDGE
ADVANCE INFORMATION
Page 34 OF 109
09/25/03 Revision 1.09
!
The register number in address bits AD[7:2] is equal to 000000b.
!
The bus number is equal to the value in the secondary bus number register in
configuration space for downstream forwarding or equal to the value in the primary
bus number register in configuration space for upstream forwarding.
!
The bus command on CBE# is a configuration write command.
When PI7C7300A initiates the transaction on the target interface, the bus command is
changed from configuration write to special cycle. The address and data are for-warded
unchanged. Devices that use special cycles ignore the address and decode only the bus
command. The data phase contains the special cycle message. The transaction is
forwarded as a delayed transaction, but in this case the target response is not forwarded
back (because special cycles result in a master abort). Once the transaction is completed
on the target bus, through detection of the master abort condition, PI7C7300A responds
with TRDY# to the next attempt of the con-figuration transaction from the initiator. If
more than one data transfer is requested, PI7C7300A responds with a target disconnect
operation during the first data phase.
4.9
TRANSACTION TERMINATION
This section describes how PI7C7300A returns transaction termination conditions back
to the initiator. The initiator can terminate transactions with one of the following types
of termination:
!
Normal termination
Normal termination occurs when the initiator de-asserts FRAME# at the beginning of the
last data phase, and de-asserts IRDY# at the end of the last data phase in conjunction
with either TRDY# or STOP# assertion from the target.
!
Master abort
A master abort occurs when no target response is detected. When the initiator does not
detect a DEVSEL# from the target within five clock cycles after asserting FRAME#, the
initiator terminates the transaction with a master abort. If FRAME# is still asserted, the
initiator de-asserts FRAME# on the next cycle, and then de-asserts IRDY# on the
following cycle. IRDY# must be asserted in the same cycle in which FRAME# de-
asserts. If FRAME# is already de-asserted, IRDY# can be de-asserted on the next clock
cycle following detection of the master abort condition.
The target can terminate transactions with one of the following types of termination:
!
Normal termination
TRDY# and DEVSEL# asserted in conjunction with FRAME# de-asserted and IRDY#
asserted.
!
Target retry
STOP# and DEVSEL# asserted with TRDY# de-asserted during the first data phase. No
data transfers occur during the transaction. This transaction must be repeated.
!
Target disconnect with data transfer
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| PI7C8150ANDE | IC PCI-PCI BRIDGE 2PORT 256-PBGA |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PI7C7300ANA-E | 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 |
| PI7C7300DNAE | 功能描述:外圍驅(qū)動器與原件 - PCI PCI -to -PCI Bridge 3 Port RoHS:否 制造商:PLX Technology 工作電源電壓: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:FCBGA-1156 封裝:Tray |
| PI7C7300EVB | 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 工具用于評估:ADM3485E 接口類型:RS-485 工作電源電壓:3.3 V |
| PI7C8140A | 制造商:PERICOM 制造商全稱:Pericom Semiconductor Corporation 功能描述:2 PORT PCI TO PCI BRIDGE PLX PCI 6140 COMPARISON |
| PI7C8140AEVB | 功能描述:界面開發(fā)工具 2 Port PCI to 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 |
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