- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄378217 > 82845GV (INTEL CORP) Intel 82845G/82845GL/82845GV Graphics and Memory Controller Hub (GMCH) PDF資料下載
參數(shù)資料
| 型號： | 82845GV |
| 廠商： | INTEL CORP |
| 元件分類： | 外設(shè)及接口 |
| 英文描述： | Intel 82845G/82845GL/82845GV Graphics and Memory Controller Hub (GMCH) |
| 中文描述： | MULTIFUNCTION PERIPHERAL, PBGA760 |
| 封裝： | 37.50 X 37.50 MM, 1 MM PITCH, FLIP CHIP, BGA-760 |
| 文件頁數(shù)： | 18/193頁 |
| 文件大?。?/td> | 2990K |
| 代理商： | 82845GV |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁當(dāng)前第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁第93頁第94頁第95頁第96頁第97頁第98頁第99頁第100頁第101頁第102頁第103頁第104頁第105頁第106頁第107頁第108頁第109頁第110頁第111頁第112頁第113頁第114頁第115頁第116頁第117頁第118頁第119頁第120頁第121頁第122頁第123頁第124頁第125頁第126頁第127頁第128頁第129頁第130頁第131頁第132頁第133頁第134頁第135頁第136頁第137頁第138頁第139頁第140頁第141頁第142頁第143頁第144頁第145頁第146頁第147頁第148頁第149頁第150頁第151頁第152頁第153頁第154頁第155頁第156頁第157頁第158頁第159頁第160頁第161頁第162頁第163頁第164頁第165頁第166頁第167頁第168頁第169頁第170頁第171頁第172頁第173頁第174頁第175頁第176頁第177頁第178頁第179頁第180頁第181頁第182頁第183頁第184頁第185頁第186頁第187頁第188頁第189頁第190頁第191頁第192頁第193頁
Introduction
18
Intel
82845G/82845GL/82845GV GMCH Datasheet
1.4.4
Multiplexed AGP and Intel
DVO Port Interface
The GMCH multiplexes an AGP interface with two DVO ports. When an external AGP device is
installed in the system, the IGD functionality is disabled.
AGP Interface
A single AGP or PCI-66 component or connector (not both) is supported by the GMCH’s AGP
interface. Support for a single PCI-66 device is limited to the subset supported by the
Accelerated
Graphics Port Interface Specification, Revision 2.0
. The AGP/PCI_B buffers operate only in 1.5 V
mode and support the AGP 1.5 V Connector. An external graphics accelerator is not a requirement
due to the GMCH’s integrated graphics capabilities. The BIOS will disable the IGD if an external
AGP device is detected.
The AGP/PCI_B interface supports up to 4X AGP signaling and up to 4X Fast Writes. AGP
semantic cycles to system DRAM are not snooped on the host bus. PCI semantic cycles to system
memory are snooped on the host bus. The GMCH supports PIPE# or SBA_[7:0] AGP address
mechanisms, but not both simultaneously. Either the PIPE# or the SBA_[7:0] mechanism must be
selected during system initialization. The GMCH contains a 32-deep AGP request queue. High
priority accesses are supported.
Multiplexed Intel
DVO Port Interface
The GMCH supports two multiplexed DVO ports that each drive pixel clocks up to 165 MHz.
When an AGP connector is present, the GMCH can make use of these digital display channels via
an AGP Digital Display card.
1.4.5
Graphics Overview
The GMCH provides an integrated graphics accelerator delivering 3D, 2D and video capabilities.
The GMCH contains an extensive set of instructions for 3D operations, BLT and Stretch BLT
operations, motion compensation, overlay, and display control. The GMCH’s video engines
support video conferencing and other video applications. The GMCH does
not
support a dedicated
local graphics memory interface, it can only be used in a UMA configuration. In addition, the
GMCH supports external graphics accelerators via AGP, but cannot work concurrently with an
external AGP graphics device.
High bandwidth access to data is provided through the system memory port. The GMCH can
access graphics data located in system memory at 1.0 GB/s (SDR PC133), 1.6 GB/s (DDR200) or
2.2 GB/s (DDR266). The GMCH uses Intel’s Direct Memory Execution model to fetch textures
from system memory. The GMCH includes a cache controller to avoid frequent memory fetches of
recently used texture data.
The GMCH also provides 2D hardware acceleration for block-level transfers of data (BLTs). The
BLT engine provides the ability to copy a source block of data to a destination and perform raster
operations on the data using a pattern, and/or another destination. Performing these common tasks
in hardware reduces processor load; thus, improving performance. The internal graphics device
must be disabled when an attached AGP device is used.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 82845Gx | Intel 82845G/82845GL/82845GV Graphics and Memory Controller Hub (GMCH) |
| 82845MP | Intel 845 Family Chipset-Mobile 82845MP/82845MZ Chipset Memory Controller Hub Mobile (MCH-M) |
| 82845Mx | Intel 845 Family Chipset-Mobile 82845MP/82845MZ Chipset Memory Controller Hub Mobile (MCH-M) |
| 82845MZ | Intel 845 Family Chipset-Mobile 82845MP/82845MZ Chipset Memory Controller Hub Mobile (MCH-M) |
| 82845PE | 82845GE Graphics and Memory Controller Hub (GMCH) and 82845PE Memory Controller Hub (MCH) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 82845GX | 制造商:INTEL 制造商全稱:Intel Corporation 功能描述:Intel 82845G/82845GL/82845GV Graphics and Memory Controller Hub (GMCH) |
| 82845MP | 制造商:INTEL 制造商全稱:Intel Corporation 功能描述:Intel 845 Family Chipset-Mobile 82845MP/82845MZ Chipset Memory Controller Hub Mobile (MCH-M) |
| 82845MX | 制造商:INTEL 制造商全稱:Intel Corporation 功能描述:Intel 845 Family Chipset-Mobile 82845MP/82845MZ Chipset Memory Controller Hub Mobile (MCH-M) |
| 82845MZ | 制造商:INTEL 制造商全稱:Intel Corporation 功能描述:Intel 845 Family Chipset-Mobile 82845MP/82845MZ Chipset Memory Controller Hub Mobile (MCH-M) |
| 82845PE | 制造商:INTEL 制造商全稱:Intel Corporation 功能描述:82845GE Graphics and Memory Controller Hub (GMCH) and 82845PE Memory Controller Hub (MCH) |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。