Features • Compatible with MCS-51® Products • 8K Bytes of In-System Programmable (ISP) Flash Memory – Endurance: 1000 Write/Erase Cycles • 4.0V to 5.5V Operating Range • Fully Static Operation: 0 Hz to 33 MHz • Three-level Program Memory Lock • 256 x 8-bit Internal RAM • 32 Programmable I/O Lines • Three 16-bit Timer/Counters • Eight Interrupt Sources • Full Duplex UART Serial Channel • Low-power Idle and Power-down Modes • Interrupt Recovery from Power-down Mode • Watchdog Timer • Dual Data Pointer • Power-off Flag
标签： 8226 Programmable Compatible In-System
上传时间： 2015-06-27
上传用户：dianxin61
Spikes can be taken as absolute quantities of measuring values which are large than approximately four (expressed as variable [Times_SD] in the program)times of the standard deviation of the time series, and can be removed by repeating 3 times with each time series. When a measuring value with the deviation from the mean larger than four times of the standard deviation, the variable can be taken as NO_VALUE, and the number of spikes is saved into the variable [SpikeNum]. If the variable [Times_SD] is taken as four, many records will be removed, so the variable [Times_SD] can be taken as larger, for example eight.
标签： approximately quantities measuring absolute
上传时间： 2015-11-09
上传用户：yangbo69
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
This is a collection of m-files I created to complete a research project into the DC components of various encoding techniques. Eight of the files create random bit sequences that conform to their coding requirements. The others were files I found useful in the scope of the project and supplement the generating m-files.
标签： collection components complete research
上传时间： 2015-12-24
上传用户：lnnn30
将数字时间转换为英语口语表达形式，控制台形式。其实核心代码为一个类，可以自己修改输出形式。 比如输入 8 15 10 45 5 30 2 20 2 40 0 0 就能转换为： It s twenty past eight It s a quarter past eight It s a quarter to eleven It s half past five It s twenty past two It s twenty to three 注意： 输入 0 0 后结束并显示结果 方式为每行两个数，中间用空格空开 第一个数0到12表示小时，第二个数0到59表示分钟
上传时间： 2013-12-09
上传用户：大融融rr
The algorith divides rows in to four equal groups. The rows are then used to from a distance graph which is then transformed into a matrix. girth of eight is maintained by avoiding six-cycles in the graph construction
标签： rows The algorith distance
上传时间： 2014-01-15
上传用户：kelimu
This article covers many of the fundamentals of analog video. Video is defined for our purposes here as "moving pictures." Still imaging, like what is found in digital still cameras or scanners, is not covered. The requirements for still imaging do have a lot in common with those for video, but the differences are significant enough to be dealt with as a separate discipline.
标签： fundamentals purposes article defined
上传时间： 2013-12-17
上传用户：黑漆漆
The W78E58B is an 8-bit microcontroller which has an in-system programmable Flash EPROM for firmware updating. The instruction set of the W78E58B is fully compatible with the standard 8052. The W78E58B contains a 32K bytes of main ROM and a 4K bytes of auxiliary ROM which allows the contents of the 32KB main ROM to be updated by the loader program located at the 4KB auxiliary ROM 512 bytes of on-chip RAM four 8-bit bi-directional and bit-addressable I/O ports an additional 4- bit port P4 three 16-bit timer/counters a serial port. These peripherals are supported by a eight sources two-level interrupt capability. To facilitate programming and verification, the ROM inside the W78E58B allows the program memory to be programmed and read electronically. Once the code is confirmed, the user can protect the code for security
标签： microcontroller programmable in-system W78E58B
上传时间： 2017-04-27
上传用户：yiwen213
Ce livre, illustré d exemples nombreux, présente les concepts de base et les fondements des méthodes de la statistique textuelle. Il combine une approche pédagogique des outils et un exposé sur l état de l art de cette discipline. La statistique textuelle se veut précisément un outil destiné à parfaire l analyse, la description, la comparaison, en un mot, le traitement des textes.
标签： fondements les exemples concepts
上传时间： 2013-12-25
上传用户：zhyiroy
This C++ example demonstrates how to play (a maximum of 16) simultaneous voices. The example has eight blocks moving on the screen and playing sounds when they collide with a wall or with each other. The updated example has been tested to support S60 5th Edition and touch UI. Important classes: CMdaAudioOutputStream, TMdaAudioDataSettings, MMdaAudioOutputStreamCallback, RThread, RSemaphore, RMutex
标签： example demonstrates simultaneous maximum
上传时间： 2014-11-17
上传用户：yt1993410
