參數(shù)資料
型號(hào)： 2105011
英文描述： LUBRICANT GREASE 85G
中文描述： 潤(rùn)滑脂85克
文件頁(yè)數(shù)： 5/15頁(yè)
文件大?。?/td> 92K
代理商： 2105011
21050 PCI-to-PCI Bridge Hardware Implementation
Application Note
5
1.0
Introduction
This document presents guidelines for hardware implementation of the 21050 in a system. This
application note is limited to hardware implementation of 21050 only and does not cover any
devices that might be behind the 21050, or initialization code needed to configure the 21050.
This application note includes implementation notes on layout, clocking, secondary bus IDSEL
mapping, using data synchronization pins, interrupt routing, and secondary bus arbitration.
Implementation on both a motherboard and an option card are covered. For most situations,
hardware implementation issues are the same. An exception is the clocking discussion, which
specifies separate guidelines for motherboard and option card implementations. In addition,
guidelines for interrupt routing on option cards are provided in the interrupt discussion.
The following related documents may be useful.
21050 PCI-PCI Bridge Data Sheet
21050 PCI-PCI Bridge Configuration Application Note
21050 PCI Evaluation Board User’s Guide
Published by the PCI Special Interest Group:
PCI Local Bus Specification
, Revision 2.0
PCI-PCI Bridge Architecture Specification
, Revision 1.0
1.1
Functional Overview
The 21050 PCI-PCI Bridge provides a connection between two independent PCI buses. The PCI
buses operate concurrently, except when reads or non posted writes are crossing the bridge. The
two PCI buses are referred to as the primary PCI bus, which is the PCI bus closest to the CPU, and
the secondary PCI bus, which is the PCI bus farther from the CPU.
The 21050 has two common applications. System designers can use the 21050 on a motherboard to
add more devices or add-in card slots than a single PCI bus can support. Add-in card designers can
use the 21050 to enable multiple device option cards. (PCI add-in cards are restricted to a single
connection to the signals in the PCI connector.) Designers can also use the 21050 to isolate bus
traffic on one PCI bus segment from other PCI bus segments.
The 21050 PCI-PCI Bridge has the following interfaces:
Primary and secondary PCI bus interfaces
Control and data to two PCI buses, including LOCK#, PERR#, and SERR#. To implement
these interfaces, follow the guidelines in the
PCI Local Bus Specification
, Revision 2.0. The
21050 primary interface implements Revision 2.0 compliant 5-Volt drivers.
Secondary bus arbiter
Six request/grant pairs for secondary bus master control, plus one pin, s_cfn_l, to enable the
arbiter.
Data synchronization pins
One control input (s_dispst_l) that marks posted write data and conditionally disables write
posting, and one control output (s_bufne_l) that indicates when marked data has been
delivered.
相關(guān)PDF資料
PDF描述
2105012 SUPER LUBE 400G
2105021 SUPERLUBE OEL OIL 7G
21050-AA PCI Bus Interface/Controller
21052-AA PCI Bus Interface/Controller
21052-AB PCI Bus Interface/Controller
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
2105012 制造商:Henkel Corporation / Loctite 功能描述:GREASE SUPERLUBE 400G 制造商:LOCTITE 功能描述:GREASE, SUPERLUBE, 400G
21-0501-20 功能描述:IC 與器件插座 STRIP LINE BIFURCATE 21 PINS TIN RoHS:否 制造商:Molex 產(chǎn)品:LGA Sockets 節(jié)距:1.02 mm 排數(shù): 位置/觸點(diǎn)數(shù)量:2011 觸點(diǎn)電鍍:Gold 安裝風(fēng)格:SMD/SMT 端接類(lèi)型:Solder 插座/封裝類(lèi)型:LGA 2011 工作溫度范圍:- 40 C to + 100 C
21-0501-21 功能描述:IC 與器件插座 STRIP LINE BIFURCATE 21 PINS GOLD RoHS:否 制造商:Molex 產(chǎn)品:LGA Sockets 節(jié)距:1.02 mm 排數(shù): 位置/觸點(diǎn)數(shù)量:2011 觸點(diǎn)電鍍:Gold 安裝風(fēng)格:SMD/SMT 端接類(lèi)型:Solder 插座/封裝類(lèi)型:LGA 2011 工作溫度范圍:- 40 C to + 100 C
210-501-21-38 制造商:MARL International Limited 功能描述:T1 3/4 5mm MES red LED,12Vdc
210-501-21-38_1312 制造商:MARL 制造商全稱:Marl International Limited 功能描述:filament replacement leds
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*