a8259 可编程中断控制 altera提供 The a8259 is designed to simplify the implementation of the interrupt interface in 8088 and 8086 based microcomputer systems. The DEvice is known as a programmable interrupt controller. The a8259 receives and prioritizes up to 8 interrupts, and in the cascade mode, this can be expanded up to 64 interrupts. An asynchronous reset and a clock input have been added to improve operation and reliability.
上传时间： 2015-01-02
上传用户：panpanpan
Modern electronic systems solve so many difficult problems that they often seem like magic. Nonetheless, these systems all have thesame basic limitation: they need a source of electrical power! Most of the time this is a straightforward challenge for the electronicdesigner, because there are many power-delivery solutions. Yet sometimes a DEvice has no direct power source, and running wiresor replacing batteries is impractical. Even when long-life batteries are usable, they eventually need to be replaced, which requires aservice call.
标签： 能量收集
上传时间： 2015-01-03
上传用户：zukfu
The high defi nition multimedia interface (HDMI) is fastbecoming the de facto standard for passing digitalaudio and video data in home entertainment systems.This standard includes an I2C type bus called a displaydata channel (DDC) that is used to pass extended digitalinterface data (EDID) from the sinkDEvice (such as adigital TV) to the source DEvice (such as a digital A/Vreceiver). EDID includes vital information on the digitaldata formats that the sink DEvice can accept. The HDMIspecifi cation requires that DEvices have less than 50pFof input capacitance on their DDC bus lines, which canbe very diffi cult to meet. The LTC®4300A’s capacitancebuffering feature allows DEvices to pass the HDMI DDCinput capacitance compliance test with ease.
上传时间： 2013-11-21
上传用户：tian126vip
USB接口
上传时间： 2013-10-18
上传用户：smallfish
利用EZ-USB接口芯片AN2131Q实现了基于TMS320C5409的水声信号采集及混沌特性研究系统中的高速数据通信，提出了一种采用FIFO缓存芯片实现AN2131Q与TMS320C5409的连接方法，深入研究了EZ-USB序列接口芯片的固件、设备驱动和用户程序开发过程。关键词：AN2131Q; TMS320C5409; IDT72V02；数据通信ABSTRACT: Using AN2131Q as the control chip, the communication between DSP and PC in the underwater acoustic signal acquisition and chaotic characteristics study system is realized. The method is proposed that using FIFO to realize the connectivity between AN2131Q and TMS320C5409. The development of programming Firmware、DEvice driver and user application are thoroughly researched.Key words: AN2131Q; TMS320C5409; IDT72V02; data communication
上传时间： 2014-04-03
上传用户：hahayou
1. 简介 ISIS中的属性有非常大的用处。一个特定的对象的属性是由一些关键字组成，比如，在ISIS中，我们使用封装的属性与PCB的封装关联。 对象，管脚，电路图都有自己的属性，如果你想很把这个功能强大的软件用好你必须很清楚他们之间的联系，这个软件和以前你所用过的画电路的软件有些不同。 2. 对象属性 对象属性有两个类型—系统属性和使用属性。在ISIS中的这些功能是由一些保留字所组成，不管是内部的程序比如ARES和VSM，或者你自己所使用的软件都是有关联的。 (1)系统属性 系统属性在ISIS中是由一些特殊含义的关键字所够成。比如，一个元件中的DEvice属性是根据元件库在分配时候定义的。这些属性一般是文本的—比如元件的REF和VALUE属性可以直接从Edit Component对话框中访问，但是别的比如DEvice属性就是做为图形操作所生成的结果。
上传时间： 2014-03-27
上传用户：wangfei22
We intend to develop a wifi enabled p2p file sharing system on a linux platform using jxta and java. The purpose is to build a system that can be ported to an embedded DEvice at a later stage and be used for p2p file sharing using the 802.11b standard. 我们旨在Linux平台上使用jxta 和java来开发一个支持wifi的p2p文件共享系统。其目的是建造一个以后可以移植到嵌入式设备的系统，使用802.11b标准进行p2p文件共享。 来源: http://sourceforge.net/projects/linux-p2p-wifi/
标签： platform develop enabled sharing
上传时间： 2015-01-20
上传用户：Shaikh
显存地址映射。只要知道该类PCI设备的Vendor号，DEvice号和索引号myIndex，就可以查找到该类PCI设备的MEMORY地址和IO地址，以及中断级。并将第一个MEMORY地址给出它的从物理地址到虚拟地址的映射。
上传时间： 2013-12-14
上传用户：CSUSheep
USBD的驱动程序，Linux环境下的usb DEvice的驱动程序
上传时间： 2013-12-27
上传用户：bakdesec
enumerates Plug-n-Play RS-232 DEvices that are compliant with the current revision of Plug and Play External COM DEvice.
标签： Plug-n-Play enumerates compliant revision
上传时间： 2015-03-29
上传用户：gdgzhym
