一个简单的ＳＰＩ ＩＰ核，SPI Core Specifications 可以从说明文档中找到！ The simple Serial Peripheral Interface core is an enhanced version of the Serial Peripheral Interface found on Motorola s M68HC11 family of CPUs. The Serial Peripheral Interface is a serial, synchronous communication protocol that requires a minimum of 3 wires. FEATURES: · Compatible with Motorola’s SPI specifications · Enhanced M68HC11 Serial Peripheral Interface · 4 entries deep read FIFO · 4 entries deep write FIFO · Interrupt generation after 1, 2, 3, or 4 transferred bytes · 8 bit WISHBONE RevB.3 Classic interface · Operates from a wide range of input clock frequencies · Static synchronous design · Fully synthesizable
标签：
上传时间： 2015-09-17
上传用户：TRIFCT
This paper presents several low-latency mixed-timing FIFO (first-in–first-out) interfaces designs that interface systems on a chip working at different speeds. The connected systems can be either synchronous or asynchronous. The designs are then adapted to work between systems with very long interconnect delays, by migrating a single-clock solution by Carloni et al. (1999, 2000, and 2001) (for “latency-insensitive” protocols) to mixed-timing domains. The new designs can be made arbitrarily robust with regard to metastability and interface operating speeds. Initial simulations for both latency and throughput are promising.
标签： mixed-timing low-latency interfaces first-out
上传时间： 2015-10-08
上传用户：dapangxie
This a simple example project for the MSP430 series MCU and the GCC port of the mspgcc project. The project contains a makefile and uses assembler and C sources. It shows a clock on an character LCD.
标签： project the example simple
上传时间： 2015-10-19
上传用户：waitingfy
图的深度优先遍历和广度优先遍历，以邻接矩阵方式输入。（按照提示输入）！ - The chart depth first spreads the calendar and the breadth first spreads the calendar, is next the matrix way input. (According
标签：
上传时间： 2014-01-27
上传用户：徐孺
书名：基本商业程序的建模 Essential Business Process Modeling (Paperback) 作者： Mike Havey 出版商：O Reilly 1 edition (August 18, 2005) 内容介绍： Ten years ago, groupware bundled with email and calendar applications helped track the flow of work from person to person within an organization. Workflow in today s enterprise means more monitoring and orchestrating massive systems. A new technology called Business Process Management, or BPM, helps software architects and developers design, code, run, administer, and monitor complex network-based business processes. BPM replaces those sketchy flowchart diagrams that business analysts draw on whiteboards with a precise model that uses standard graphical and XML representations, and an architecture that allows it converse with other services, systems, and users.
标签： Essential Paperback Business Modeling
上传时间： 2015-10-21
上传用户：zhangyigenius
SAM9261 BasicMMU Example code with ADS1.2 (163 kB) The goal of this project is to show how to use a PC100 SDRAM and the MMU to perform a rating with a 100MHz Bus Clock. The rating is based on Dhrystone 2.1. It shows the rate when I+D Caches are disabled or enabled, with or without MMU and I Cache is disable or enabled, with or without MMU.
标签： BasicMMU Example project 9261
上传时间： 2013-12-28
上传用户：zhanditian
The functionality is to be designated the corresponding year reign France Thus the year, which was the year of the zodiac. But can be designated a specific date date of the lunar calendar. Author Note : I used to do this as a commercial product development PDA calendar procedures in recent transplant PC, ... software categories : algorithm related paper from the shrimp off FO
标签： year functionality corresponding designated
上传时间： 2014-05-28
上传用户：chenxichenyue
The ability to write efficient, high-speed arithmetic routines ultimately depends upon your knowledge of the elements of arithmetic as they exist on a computer. That conclusion and this book are the result of a long and frustrating search for information on writing arithmetic routines for real-time embedded systems. With instruction cycle times coming down and clock rates going up, it would seem that speed is not a problem in writing fast routines. In addition, math coprocessors are becoming more popular and less expensive than ever before and are readily available. These factors make arithmetic easier and faster to use and implement. However, for many of you the systems that you are working on do not include the latest chips or the faster processors. Some of the most widely used microcontrollers used today are not Digital Signal Processors (DSP), but simple eight-bit controllers such as the Intel 8051 or 8048 microprocessors.
标签： arithmetic high-speed ultimately efficient
上传时间： 2014-11-30
上传用户：lizhen9880
TLC549是一种采用8位逐次逼近式工作的A/D转换器。内部包含系统时钟、采样和保持、8位A/D转换器、数据寄存器以及控制逻辑电路。TLC549每25uS重复一次“输入—转换—输出”。器件有两个控制输入：I/O CLOCK和片选（CS）。 内部系统时钟和I/O CLOCK可独立使用。应用电路的设计只需利用I/O时钟启动转换或读出转换结果。当CS为高电平时，DATA OUT处于高阻态且I/O时钟被禁止。
上传时间： 2014-01-17
上传用户：qiaoyue
日历时钟DS12887控制实验 实验步骤 （1）连CZ1→CZ7，/IRQ(MC3)→P3.2。 （2）运行程序CLOCK.ASM，主机提示"SE——"等待键输入，①如按F0/EX，则读取显示当前已设置的日历钟。②如按数字键、再按SCAL键，则重新设置日历，例如设置日历为2002年02月22日，只需输入02 02 22即可，20为固定设置，不需输入。
上传时间： 2014-01-16
上传用户：sqq
