參數(shù)資料
型號： PI7C7300
廠商： Pericom Semiconductor Corp.
英文描述： 3-PORT PCI-to-PCI BRIDGE
中文描述： 3端口PCI至PCI橋
文件頁數(shù)： 56/109頁
文件大?。?/td> 779K
代理商： PI7C7300
PI7C7300A
3-PORT PCI-TO-PCI BRIDGE
ADVANCE INFORMATION
Page 56 OF 109
09/25/03 Revision 1.09
During upstream write transactions, when a data parity error is reported on the target
(primary) bus by the target’s assertion of P_PERR#, the following events occur:
!
PI7C7300A sets the data parity detected bit in the status register, if the parity error
response bit is set in the command register of the primary interface.
!
PI7C7300A asserts P_SERR# and sets the signaled system error bit in the status
register, if all the following conditions are met:
-
The SERR# enable bit is set in the command register.
-
The parity error response bit is set in the bridge control register of the secondary
interface.
-
The parity error response bit is set in the command register of the primary
interface.
-
PI7C7300A has not detected the parity error on the secondary (initiator) bus
which the parity error is not forwarded from the secondary bus to the primary
bus.
Assertion of P_SERR# is used to signal the parity error condition when the initiator does
not know that the error occurred. Because the data has already been delivered with no
errors, there is no other way to signal this information back to the initiator. If the parity
error has forwarded from the initiating bus to the target bus, P_SERR# will not be
asserted.
7.3
DATA PARITY ERROR REPORTING SUMMARY
In the previous sections, the responses of PI7C7300A to data parity errors are presented
according to the type of transaction in progress. This section organizes the responses of
PI7C7300A to data parity errors according to the status bits that PI7C7300A sets and the
signals that it asserts.
Table 7-1 shows setting the detected parity error bit in the status register, corresponding
to the primary interface. This bit is set when PI7C7300A detects a parity error on the
primary interface.
Table 7-1 SETTING THE PRIMARY INTERFACE DETECTED PARITY ERROR BIT
Primary Detected
Parity Error Bit
Transaction Type
Direction
Bus Where Error
Was Detected
Primary/
Secondary Parity
Error Response
Bits
x / x
x / x
x / x
x / x
x / x
x / x
x / x
x / x
x / x
x / x
x / x
0
0
1
0
1
0
0
0
1
0
0
Read
Read
Read
Read
Posted Write
Posted Write
Posted Write
Posted Write
Delayed Write
Delayed Write
Delayed Write
Downstream
Downstream
Upstream
Upstream
Downstream
Downstream
Upstream
Upstream
Downstream
Downstream
Upstream
Primary
Secondary
Primary
Secondary
Primary
Secondary
Primary
Secondary
Primary
Secondary
Primary
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相關代理商/技術參數(shù)
參數(shù)描述
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
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
PI7C7300ANAE 功能描述:外圍驅動器與原件 - PCI 3 Port PCI Bridge 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
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
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