參數(shù)資料
型號: AMD-640
廠商: Advanced Micro Devices, Inc.
英文描述: 64-Bit Socket 7 Interface, Integrated Write back Cache Controller, System Memory Controller, and PCI Bus Controller.(64位系統(tǒng)控制器(包括高速緩沖存儲器控制器,系統(tǒng)存儲器控制器和PCI總線控制器))
中文描述: 64位Socket 7的接口,集成寫回高速緩沖存儲器控制器,系統(tǒng)內(nèi)存控制器和PCI總線控制器。(64位系統(tǒng)控制器(包括高速緩沖存儲器控制器,系統(tǒng)存儲器控制器和的PCI總線控制器))
文件頁數(shù): 31/159頁
文件大?。?/td> 1900K
代理商: AMD-640
4-4
Signal Descriptions
AMD-640 System Controller Data Sheet
21090C/0—June 1997
Preliminary Information
memory or I/O space. When M/IO# is high, the AMD-640
System Controller enables accesses to DRAM and the L2
cache. When the access is not targeted to the cache or the
DRAM, the AMD-640 system controller uses M/IO# to generate
the PCI commands on C/BE[3:0] during the command phase of
CPU-to-PCI cycles.
NA#
Next Address
The AMD-640 system controller asserts NA# off the rising
HCLK edge to indicate to the host processor that it is ready to
accept a pipelined address.
Output
SMIACT#
System Management Interrupt Acknowledge
When SMIACT# from the host processor is sampled asserted, it
indicates to the AMD-640 system controller that the processor
has entered system management mode (SMM). If configuration
register 63h bit, 1 is set, asserted SMIACT# redirects memory
accesses from 30000h:3FFFFh to B0000h:BFFFFh. Accesses to
this memory area are passed through to the PCI bus when
SMIACT# is high, as this is normally the Video Buffer area.
Input
W/R#
Write/Read
The AMD-640 system controller samples W/R# to determine
whether the current processor cycle is a write or a read.
Input
相關(guān)PDF資料
PDF描述
AMD-645 Peripheral Bus Controller(外圍總線控制器)
AMD-751 System Bus, System Memory Controller, AGP Controller, and PCI Bus Controller(系統(tǒng)總線、系統(tǒng)存儲器控制器、AGP控制器和PCI總線控制器)
AMD-756 Peripheral Bus Controller(外圍總線控制器)
AMD ATHLON 32-Bit Microprocessor with 3D Multimedia Performance and Digital Video(32位微處理器帶3D多媒體性能和數(shù)字視頻)
AMD-K5 32-Bit Superior Price/Performance Value Microprocessor(32位高性/價比微處理器)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AMD-640CHIPSET 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Peripheral IC
AMD650-N10D-T 制造商:SMC Corporation of America 功能描述:Micro Mist Separator, 6000 L/min(ANR), 1-in NPT Port, N.O. Auto Drain, 99.9% Effic.
AMD-750 制造商:未知廠家 制造商全稱:未知廠家 功能描述:AMD-750? Chipset Overview
AMD-751 制造商:未知廠家 制造商全稱:未知廠家 功能描述:AMD-751 - AMD-751 System Controller Revision Guide
AMD-751AC 制造商:Advanced Micro Devices 功能描述:SYSTEM CONTROLLER, 492 Pin, BGA