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參數(shù)資料
| 型號： | PI7C7300NA |
| 廠商： | PERICOM SEMICONDUCTOR CORP |
| 元件分類： | 總線控制器 |
| 英文描述： | PCI BUS CONTROLLER, PBGA272 |
| 封裝： | PLASTIC, BGA-272 |
| 文件頁數(shù)： | 107/119頁 |
| 文件大?。?/td> | 880K |
| 代理商： | PI7C7300NA |
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PI7C7300
3-PORT PCI-to-PCI BRIDGE
Advanced Information
78
06/04/02 Revision 1.07
14.1.37
Port Option Register – Offset 74h (continued)
4
Secondary
MEMW
Command
Alias Enable
R/W
Controls PI7C7300’s detection mechanism for matching non-
posted memory write retry cycles from the initiator on the
primary interface
0: exact matching for non-posted memory write retry cycles
from initiator on the S1 or S2 interface
1: alias MEMWI to MEMW for non-posted memory write retry
cycles from initiator on the S1 or S2 interface
Reset to 0
8:5
Reserved
R/O
Reserved. Returns 0 when read. Reset to 0.
9
Enable Long
Request
R/W
Controls PI7C7300’s ability to enable long requests for lock
cycles
0: normal lock operation
1: enable long request for lock cycle
Reset to 0
10
Enable
Secondary To
Hold Request
Longer
R/W
Control’s PI7C7300’s ability to enable S1 or S2 to hold
requests longer.
0: internal S1 or S2 master will release REQ_L after FRAME_L
assertion
1: internal S1 or S2 master will hold REQ_L until there is no
transactions pending in FIFO or until terminated by target
Reset to 1
11
Enable Primary
To Hold
Request
Longer
R/W
Control’s PI7C7300’s ability to hold requests longer at the
Primary Port.
0: internal Primary master will release REQ_L after FRAME_L
assertion
1: internal Primary master will hold REQ_L until there is no
transactions pending in FIFO or until terminated by target
Reset to 1
15:12
Reserved
R/O
Reserved. Returns 0 when read. Reset to 0.
14.1.38
Master Timeout Counter Register – Offset 74h
Bit
Function
Type
Description
31:16
Master Timeout
R/W
Holds the maximum number of PCI clocks that PI7C7300 will
wait for initiator to retry the same cycle before reporting
timeout. Master timeout occurs after 2
15 PCI clocks.
Default is 8000h.
14.1.39
Retry Counter Register – Offset 78h
Bit
Function
Type
Description
31:0
Retry Counter
R/W
Holds the maximum number of attempts that PI7C7300 will try
before reporting retry timeout. Retry count set at 2
24 PCI
clocks. Default is 0100 0000h.
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| 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 |
| PI7C8140AMA | 制造商:PERICOM 制造商全稱:Pericom Semiconductor Corporation 功能描述:2-Port PCI-to-PCI Bridge |
| PI7C8140AMAE | 功能描述:外圍驅動器與原件 - 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: 安裝風格:SMD/SMT 封裝 / 箱體:FCBGA-1156 封裝:Tray |
| PI7C8148A | 制造商:PERICOM 制造商全稱:Pericom Semiconductor Corporation 功能描述:2-PORT PCI-TO-PCI BRIDGE ADVANCE INFORMATION |
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