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參數(shù)資料
| 型號： | 82439TX |
| 廠商： | INTEL CORP |
| 元件分類： | 存儲控制器/管理單元 |
| 英文描述： | System Controller(系統(tǒng)控制器) |
| 中文描述： | 256M X 8, DRAM CONTROLLER, PBGA324 |
| 封裝： | BGA-324 |
| 文件頁數(shù)： | 37/83頁 |
| 文件大小： | 461K |
| 代理商： | 82439TX |
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E
DOS Application Area (00000h–9FFFh)
Read, write, and cacheability attributes are always enabled and are not programmable for the 0
–
640-Kbytes
DOS application region.
82439TX (MTXC)
37
PRELIMINARY
Video Buffer Area (A0000h–BFFFFh)
This 128-Kbytes area is not controlled by attribute bits. CPU-initiated cycles in this region are always forwarded
to PCI for termination. This area is not cacheable.
Expansion Area (C0000h–DFFFFh)
This 128-Kbytes area is divided into eight 16-Kbytes segments. Each segment can be assigned one of four
Read/Write states: read-only, write-only, read/write, or disabled Memory that is disabled is not remapped.
Cacheability status can also be specified for each segment.
Extended System BIOS Area (E0000h–EFFFFh)
This 64-Kbytes area is divided into four 16-Kbytes segments. Each segment can be assigned independent
cacheability, read, and write attributes. Memory segments that are disabled are not remapped elsewhere.
System BIOS Area (F0000h–FFFFFh)
This area is a single 64-Kbytes segment. This segment can be assigned cacheability, read, and write attributes.
When disabled, this segment is not remapped.
Extended Memory Area (100000h–FFFFFFFFh)
The extended memory area can be split into several parts:
Flash BIOS area from 4 Gbytes to 4 Gbytes–512 Kbytes (aliased on ISA at 16 Mbytes–15.5 Mbytes)
DRAM Memory from 1 Mbytes to a maximum of 512 Mbytes
PCI Memory space from the top of DRAM to 4 Gbytes–512 Kbytes
On power-up or reset the CPU vectors to the Flash BIOS area, mapped in the range of 4 Gbytes to 4 Gbytes–
512 Kbytes. This area is physically mapped on the expansion bus. Since these addresses are in the upper 4-
Gbytes range, the request is directed to PCI.
The DRAM memory space can occupy extended memory from a minimum of 1 Mbytes up to 256 Mbytes. This
memory is cacheable.
PCI memory space from the top of main memory to 4 Gbytes is always non-cacheable.
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| 82439TXC | 制造商:INTEL 制造商全稱:Intel Corporation 功能描述:INTEL 430HX PCISET 82439HX SYSTEM CONTROLLER (TXC) |
| 8243-A-0632-0 | 制造商:AMATOM ELECTRONIC HARDWARE 功能描述: |
| 8243-W | 功能描述:WIPE OPTICAL INDIVIDUAL PACKS RoHS:是 類別:靜電控制，ESD，無塵室產(chǎn)品 >> 處理劑，清潔劑，擦拭布 系列:- 標準包裝:100 系列:- 處理劑/清潔劑類型:清潔布 使用:電子設備 技術規(guī)格:無絨毛，微纖維 數(shù)量:100（12" L x 12" W） 包裝:袋 |
| 8243-W X(25) | 功能描述:化學物質(zhì) OPTICAL WIPE 25 PER BOX RoHS:否 制造商:3M Electronic Specialty 產(chǎn)品:Adhesives 類型:Epoxy Compound 大小:1.7 oz 外殼:Plastic Tube |
| 8243-WX25 | 功能描述:WIPE OPTICAL INDIVIDUAL PACKS RoHS:是 類別:靜電控制，ESD，無塵室產(chǎn)品 >> 處理劑，清潔劑，擦拭布 系列:- 標準包裝:100 系列:- 處理劑/清潔劑類型:清潔布 使用:電子設備 技術規(guī)格:無絨毛，微纖維 數(shù)量:100（12" L x 12" W） 包裝:袋 |
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