參數(shù)資料
型號(hào)： 82439TX
廠(chǎng)商： INTEL CORP
元件分類(lèi)： 存儲(chǔ)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(yè)數(shù)： 19/83頁(yè)
文件大?。?/td> 461K
代理商： 82439TX
E
3.1.1.
82439TX (MTXC)
19
PRELIMINARY
PM2_CNTRL
PM2 REGISTER BLOCK
I/O Address:
Default Value:
Access:
0022h
00h
Read/Write
Bit
Descriptions
7:1
Reserved.
0
Arbiter Disable (ARB_DIS)
.
When ARB_DIS=1, the MTXC does not respond to any REQ# signals
(including PHOLD#) going active until this bit is set back to 0. This bit is used to disable bus master
accesses prior to placing the CPU in a stop clock state. This bit maintains cache coherency by
preventing PCI masters from gaining access to the PCI bus and causing snoop cycle activity.
MCTL[Bit 6] (offset 79h) must be set to 1 before this register is accessible.
3.1.2.
CONFADD
CONFIGURATION ADDRESS REGISTER
I/O Address:
Default Value:
Access:
0CF8h (Accessed as a DWord)
00000000h
Read/Write
CONFADD is a 32-bit register accessed only when referenced as a DWord. A Byte or Word reference will “pass
through” the Configuration Address Register onto the PCI bus. The CONFADD register contains the Bus
Number, Device Number, Function Number, and Register Number for which a subsequent configuration access
is intended.
Bit
Descriptions
31
Configuration Enable (CONE).
1=Enable. 0=Disable.
30:24
Reserved.
23:16
Bus Number.
When the Bus Number is programmed to 00h the target of the Configuration Cycle is
either the MTXC or the PCI Local Bus that is directly connected to the MTXC, depending on the
Device Number field. A type 0 Configuration Cycle is generated on PCI if the Bus Number is
programmed to 00h and the MTXC is not the target. If the Bus Number is non-zero a type 1
configuration cycle is generated on PCI with the Bus Number mapped to AD[23:16] during the
address phase.
15:11
Device Number.
This field selects one agent on the PCI bus selected by the Bus Number. During a
Type 1 Configuration cycle this field is mapped to AD[15:11]. During a Type 0 Configuration Cycle
this field is decoded and one of AD[31:11] is driven to a 1. The MTXC is always Device Number 0.
10:8
Function Number.
This field is mapped to AD[10:8] during PCI configuration cycles. This allows the
configuration registers of a particular function in a multi-function device to be accessed. The MTXC
responds to configuration cycles with a function number of 000b; all other function number values
attempting access to the MTXC (Device Number=0, Bus Number=0) will generate a type 0
configuration cycle onto the PCI bus with no IDSEL asserted, which will result in a master abort.
7:2
Register Number.
This field selects one register within a particular Bus, Device, and Function as
specified by the other fields in the Configuration Address Register. This field is mapped to AD[7:2]
during PCI configuration cycles.
1:0
Reserved.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
82439TXC 制造商:INTEL 制造商全稱(chēng):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(lèi)別:靜電控制，ESD，無(wú)塵室產(chǎn)品 >> 處理劑，清潔劑，擦拭布 系列:- 標(biāo)準(zhǔn)包裝:100 系列:- 處理劑/清潔劑類(lèi)型:清潔布 使用:電子設(shè)備 技術(shù)規(guī)格:無(wú)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(xué)物質(zhì) OPTICAL WIPE 25 PER BOX RoHS:否 制造商:3M Electronic Specialty 產(chǎn)品:Adhesives 類(lèi)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(lèi)別:靜電控制，ESD，無(wú)塵室產(chǎn)品 >> 處理劑，清潔劑，擦拭布 系列:- 標(biāo)準(zhǔn)包裝:100 系列:- 處理劑/清潔劑類(lèi)型:清潔布 使用:電子設(shè)備 技術(shù)規(guī)格:無(wú)絨毛，微纖維 數(shù)量:100（12" L x 12" W） 包裝:袋
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