The STWD100 watchdog timer circuits are self-contained devices which prevent systemfailures that are caused by certain types of hardware errors (non-responding peripherals,bus contention, etc.) or software errors (bad code jump, code stuck in loop, etc.).The STWD100 watchdog timer has an input, WDI, and an output, WDO (see Figure 2). Theinput is used to clear the internal watchdog timer periodically within the specified timeoutperiod, twd (see SECTION 3: Watchdog timing). While the system is operating correctly, itperiodically toggles the watchdog input, WDI. If the system fails, the watchdog timer is notreset, a system alert is generated and the watchdog output, WDO, is asserted (seeSECTION 3: Watchdog timing).The STWD100 circuit also has an enable pin, EN (see Figure 2), which can enable ordisable the watchdog functionality. The EN pin is connected to the internal pull-downresistor. The device is enabled if the EN pin is left floating.
上传时间： 2013-10-22
上传用户：taiyang250072
This overview guide describes all the peripherals available for TMS320x28xx and TMS320x28xxx devices.SECTION 2 shows the peripherals used by each device. SECTION 3 provides descriptions of the peripherals.You can download the peripheral guide by clicking on the literature number, which is linked to the portable document format (pdf) file.
上传时间： 2013-11-21
上传用户：HGH77P99
The CodeWarrior Development Suite provides access and technical support to amultitude of CodeWarrior products. In this quick start guide, SECTION 1 explains howto register your CodeWarrior Development Suite. SECTION 2 explains how to activateand install one of your products. SECTION 3 describes what you are entitled to withthe purchase of your CodeWarrior Development Suite, and SECTION 4 discusses theavailable purchase options. SECTION 5 describes the benefits of maintaining a currenttechnical support contract, and SECTION 6 tells you how to access support.
标签： CodeWarrior 开发套件
上传时间： 2014-03-02
上传用户：784533221
Abstract: This application note helps system designers choose the correct external components for use with the MAX16948 dualremote antenna LDO/switch, thus ensuring that automobile-regulated phantom antenna supply and output-current-monitoring circuitrymeet performance objectives. An electronic calculator is provided that helps specify the critical external components for theMAX16948, thus reducing design time. The calculator also determines the device's analog output voltage, output current-limitthreshold, and output current-sensing accuracies. The calculator includes new automatic Step By Step feature that assists designerswith component choice. To use the new automatic feature, click on the Step By Step button relative to the desired SECTION.
上传时间： 2013-11-04
上传用户：lhll918
This application note shows how a Xilinx CoolRunnerTM-II CPLD can be used as a simplelogical switch that can quickly and reliably select between different MPEG video sources. Thesource code for the design is available on the Xilinx website, and is linked from the “VHDLCode” SECTION. The code can be expanded by the user to perform additional operations usingthe remaining CPLD resources
标签： CoolRunner-II Xilinx XAPP CPLD
上传时间： 2013-12-16
上传用户：qwer0574
This document provides practical, common guidelines for incorporating PCI Express interconnect layouts onto Printed Circuit Boards (PCB) ranging from 4-layer desktop baseboard designs to 10- layer or more server baseboard designs. Guidelines and constraints in this document are intended for use on both baseboard and add-in card PCB designs. This includes interconnects between PCI Express devices located on the same baseboard (chip-to-chip routing) and interconnects between a PCI Express device located “down” on the baseboard and a device located “up” on an add-in card attached through a connector. This document is intended to cover all major components of the physical interconnect including design guidelines for the PCB traces, vias and AC coupling capacitors, as well as add-in card edge-finger and connector considerations. The intent of the guidelines and examples is to help ensure that good high-speed signal design practices are used and that the timing/jitter and loss/attenuation budgets can also be met from end-to-end across the PCI Express interconnect. However, while general physical guidelines and suggestions are given, they may not necessarily guarantee adequate performance of the interconnect for all layouts and implementations. Therefore, designers should consider modeling and simulation of the interconnect in order to ensure compliance to all applicable specifications. The document is composed of two main SECTIONs. The first SECTION provides an overview of general topology and interconnect guidelines. The second SECTION concentrates on physical layout constraints where bulleted items at the beginning of a topic highlight important constraints, while the narrative that follows offers additional insight.
上传时间： 2014-01-24
上传用户：s363994250
PE可执行文件的镶入式程序的编写方法及示例(镶入式后门程序&原程序) 由于Microsoft公司的Windows系统是当前大部分个人电脑所使用的操作系统 主要包括win95,98,me,nt4,2000,xp等，而这些系统所使用的可执行文件的格式基 本上是PE结构的。这里的可执行文件的镶入式程序就是针对PE结构的可执行文件。 这里先简单说一下PE文件框架结构： DOS MZ header DOS stub//在不支持 PE文件格式的操作系统中它将简单显示一个错误提示 PE header//含了许多PE装载器用到的重要信息 SECTION table//每个SECTION的信息 SECTION 1 SECTION 2 SECTION 3.... 由于SECTIONAlignment 块对齐的原因每个SECTION之间都会产生很多空间， 镶入式程序的代码可以放在SECTION之间的空位上，比较方便的方法是把代码放在 最后一个SECTION的末尾，然后更改Misc.VirtualSize和SizeOfRawData这两个位 于SECTION table的IMAGE_SECTION_HEADER结构数组的成员。如果代码十分的长， 有时候会造成镶入的代码无法被完全加载而产生错误，这时需要更改SizeOfImage 在IMAGE_NT_HEADERS 结构中。 在不同的WINDOWS版本中api调用地址也有不同，为了解决这个问题可以更改引 入表让加载器
上传时间： 2015-01-13
上传用户：luopoguixiong
Copyright© 2004 Sergiu Dumitriu, Marta Gî rdea, Că tă lin Hriţ cu Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation with no Invariant SECTIONs, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the SECTION entitled "GNU Free Documentation License" All brand names, product names, or trademarks belong to their respective holders.
标签： Permission Copyright 259 Dumitriu
上传时间： 2015-04-02
上传用户：jackgao
jboss 开发人员 手册 JBoss: A Developer s Notebook also introduces the management console, the web services messaging features, enhanced monitoring capabilities, and shows you how to improve performance. At the end of each lab, you ll find a SECTION called "What about..." that anticipates and answers likely follow-up questions, along with a SECTION that points you to articles and other resources if you need more information.
标签： introduces management Developer the
上传时间： 2015-04-17
上传用户：dreamboy36
VHDL 关于2DFFT设计程序 u scinode1 ∼ scinode9.vhd: Every SCI node RTL vhdl code. The details can be seen in the following SECTION. u 2dfft.vhd: The top module includes these scinodes and form a 3x3 SCI Torus network, and it support these sub-modules scinode1∼ scinode9 reset and clk and global_cnt signals to synchronous the sub-modules to simplify the overall design. u proj2.wfc: VSS simulation result that is the same as the ModelSim simulation result. u Pro2_2.wfc: VSS simulation result of another test pattern can’t cause overflow situation.
标签： scinode1 scinode details 2DFFT
上传时间： 2014-12-02
上传用户：15071087253
