參數(shù)資料
型號： 82845GE
廠商： Intel Corp.
英文描述： 82845GE Graphics and Memory Controller Hub (GMCH) and 82845PE Memory Controller Hub (MCH)
中文描述： 82845GE圖形和內(nèi)存控制器中樞（GMCH）和82845PE內(nèi)存控制器中樞（MCH）
文件頁數(shù)： 107/157頁
文件大小： 1407K
代理商： 82845GE
Intel
82845MP/82845MZ Chipset-Mobile (MCH-M)
250687-002
Datasheet
107
R
4.1.2.
PAM Memory Spaces
PAMC0
From
0_000C_0000
To
0_000C_3FFF
PAMC4
0_000C_4000
0_000C_7FFF
PAMC8
0_000C_8000
0_000C_BFFF
PAMCC
0_000C_C000
0_000C_FFFF
PAMD0
0_000D_0000
0_000D_3FFF
PAMD4
0_000D_4000
0_000D_7FFF
PAMD8
0_000D_8000
0_000D_BFFF
PAMDC
0_000D_C000
0_000D_FFFF
PAME0
0_000E_0000
0_000E_3FFF
PAME4
0_000E_4000
0_000E_7FFF
PAME8
0_000E_8000
0_000E_BFFF
PAMEC
0_000E_C000
0_000E_FFFF
PAMF0
0_000F_0000
0_000F_FFFF
The 256-KB PAM region is divided into three parts:
ISA expansion region
, a 128-KB area between 0_000C_0000h – 0_000D_FFFFh
Extended BIOS region
, a 64-KB area between 0_000E_0000h – 0_000E_FFFFh
System BIOS region
, a 64-KB area between 0_000F_0000h – 0_000F_FFFFh.
The ISA expansion region is divided into eight 16 KB segments. Each segment can be assigned one of
four Read/Write states: read-only, write-only, read/write, or disabled. Typically, these blocks are
mapped through MCH-M and are subtractively decoded to ISA space.
The extended System BIOS region is divided into four 16 Kbytes segments. Each segment can be
assigned independent read and write attributes so it can be mapped either to main DRAM or to hub
interface. Typically, this area is used for RAM or ROM.
The system BIOS region is a single 64-Kbytes segment. This segment can be assigned read and write
attributes. It is by default (after reset) Read/Write disabled and cycles are forwarded to hub interface.
By manipulating the read/write attributes, the MCH-M can “shadow” BIOS into main DRAM.
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8284 TWO-OUTPUT LNB SUPPLY AND CONTROL-VOLTAGE REGULATOR
82865G Intel 865G/865GV Graphics and Memory Controller Hub
82865GV Intel 865G/865GV Graphics and Memory Controller Hub
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
82845GL 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)
82845GV 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)
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)
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