參數(shù)資料
型號(hào)： PI7C7300DNAE
廠商： Pericom
文件頁數(shù)： 68/107頁
文件大小： 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
安裝類型： 表面貼裝
PI7C7300D
3-PORT PCI-TO-PCI BRIDGE
Page 63 of 107
Pericom Semiconductor
November 2005 - Revision 1.01
7.4
SYSTEM ERROR (SERR#) REPORTING
PI7C7300D uses the P_SERR# signal to report conditionally a number of system error
conditions in addition to the special case parity error conditions described in Section
7.2.3.
Whenever assertion of P_SERR# is discussed in this document, it is assumed that the
following conditions apply:
For PI7C7300D to assert P_SERR# for any reason, the SERR# enable bit must be
set in the command register.
Whenever PI7C7300D asserts P_SERR#, PI7C7300D must also set the signaled
system error bit in the status register.
In compliance with the PCI-to-PCI Bridge Architecture Specification, PI7C7300D
asserts P_SERR# when it detects the secondary SERR# input, S_SERR#, asserted and
the SERR# forward enable bit is set in the bridge control register. In addition,
PI7C7300D also sets the received system error bit in the secondary status register.
PI7C7300D also conditionally asserts P_SERR# for any of the following reasons:
Target abort detected during posted write transaction
Master abort detected during posted write transaction
Posted write data discarded after 2
24 (default) attempts to deliver (224 target retries
received)
Parity error reported on target bus during posted write transaction (see previous
section)
Delayed write data discarded after 2
24 (default) attempts to deliver (224 target retries
received)
Delayed read data cannot be transferred from target after 2
24 (default) attempts (224
target retries received)
Master timeout on delayed transaction
The device-specific P_SERR# status register reports the reason for the assertion of
P_SERR#. Most of these events have additional device-specific disable bits in the
P_SERR# event disable register that make it possible to mask out P_SERR# assertion for
specific events. The master timeout condition has a SERR# enable bit for that event in
the bridge control register and therefore does not have a device-specific disable bit.
8
EXCLUSIVE ACCESS
This chapter describes the use of the LOCK# signal to implement exclusive access to a
target for transactions that cross PI7C7300D.
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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(píng)估:ADM3485E 接口類型:RS-485 工作電源電壓:3.3 V
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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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