參數(shù)資料
型號： 82815EM
英文描述： Controller Miscellaneous - Datasheet Reference
中文描述： 控制器雜項-數(shù)據(jù)表參考
文件頁數(shù)： 16/163頁
文件大小： 1049K
代理商： 82815EM
Intel
82815EM GMCH
R
16
Datasheet
1.4.
System Memory Interface
The Intel
815EM chipset GMCH2-M integrates a system memory controller that supports a 64-bit, 100-
MHz SDRAM array. The only DRAM type supported is industry standard Synchronous DRAM
(SDRAM). The SDRAM controller interface is fully configurable through a set of control registers.
Complete descriptions of these registers will be available in a future revision of this document.
The GMCH2-M supports industry standard 64-bit wide DIMMs for desktop platforms and SO-DIMMs
for mobile platforms with SDRAM devices. The twelve multiplexed address lines, SMAA[12:0], along
with the two bank select lines, SBS[1:0], allow the GMCH2-M to support 2M, 4M, 8M, and 16M x64
DIMMs. Only asymmetric addressing is supported. The GMCH2-M has 12 SCS# lines enabling the
support of up to six 64-bit rows of SDRAM. The GMCH2-M targets SDRAM with CL2 and CL3 and
supports both single and double-sided DIMMs for desktop and SO-DIMMs for mobile platforms.
Additionally, the GMCH2-M also provides a seven deep refresh queue. The GMCH2-M can be
configured to keep multiple pages open within the memory array. Pages can be kept open in any one
bank of memory.
SCKE[5:0] is used in configurations requiring powerdown mode for the SDRAM. Each SCKE can be
dynamically powerdown if not in use. This scheme will save significant amount of power since only one
SO-DIMM at any given time will be functional and all the rest will be powered down.
1.5.
Multiplexed AGP and Display Cache Interface
The Intel
815EM chipset GMCH2-M multiplexes a display cache interface for internal graphics 3D
performance improvement with an AGP controller interface. The Display Cache is used only in the
internal graphics. When an AGP card is populated in the system, the Intel
815EM chipset GMCH2-M
internal graphics will be disabled and the AGP controller enabled.
1.6.
AGP Interface
A single AGP port is supported by the GMCH2-M AGP interface. The AGP buffers operate in one of
two selectable modes:
3.3V drive,
not
5 volt safe - This mode is compliant to the AGP 1.0 and 2.0 specs.
1.5V drive,
not
3.3 volt safe - This mode is compliant with the AGP 2.0 spec.
The following table shows the AGP Data Rate and the Signaling Levels supported by the GMCH2-M:
Table 1. AGP Data Rate and Signaling Levels
Signaling Level
Data Rate
1.5v
3.3v
1x AGP
Yes
Yes
2x AGP
Yes
Yes
4x AGP
Yes
No
相關(guān)PDF資料
PDF描述
82820 Interface IC
82830009 MOTOR 12VDC 2100RPM
82830010 MOTOR 24VDC 2100RPM
82830MP Intel 830MP Chipset: 82830MP Graphics and Memory Controller Hub (GMCH-M)
82840 Interface IC
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
82-816-1000 功能描述:RF 連接器 ST Plug RG-108A 50 Ohm RoHS:否 制造商:Bomar Interconnect 產(chǎn)品:Connectors 射頻系列:BNC 型式:Jack (Female) 極性: 觸點電鍍:Gold 阻抗: 端接類型:Solder 主體類型:Straight Bulkhead 電纜類型:
82-81641 制造商:CHOMERICS (PARKER) 功能描述:
828168-1 制造商:TE Connectivity 功能描述:7P MT RV100 CONNECTOR
828168-2 功能描述:7P MT TAND BU STECK RoHS:是 類別:連接器，互連式 >> 矩形 - 自由懸掛，面板安裝 系列:AMPMODU RV 100 RoHS指令信息:5-643816-8 Statement of Compliance 3D 型號:5-643816-8.pdf 標(biāo)準(zhǔn)包裝:500 系列:MTA-100 連接器類型:插座 觸點類型：:母形插口 位置數(shù):28 間距:0.100"（2.54mm） 行數(shù):1 行間距:- 安裝類型:自由懸掛 緊固型:鎖銷滑道 電纜端接:IDC 導(dǎo)線類型:離散式或帶狀纜線 線規(guī):28 AWG 特點:閉端，帶電極標(biāo)記 觸點表面涂層:錫 觸點涂層厚度:80µin（2.03µm） 顏色:綠 包裝:散裝 相關(guān)產(chǎn)品:A1998-ND - HEAD ASSEM TOOL FOR MTA-100 RECP
828169-1 功能描述:集管和線殼 2X7P MT TAND SOCKET CONNECTOR RoHS:否 產(chǎn)品種類:1.0MM Rectangular Connectors 產(chǎn)品類型:Headers - Pin Strip 系列:DF50 觸點類型:Pin (Male) 節(jié)距:1 mm 位置/觸點數(shù)量:16 排數(shù):1 安裝風(fēng)格:SMD/SMT 安裝角:Right 端接類型:Solder 外殼材料:Liquid Crystal Polymer (LCP) 觸點材料:Brass 觸點電鍍:Gold 制造商:Hirose Connector
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*