Atmel’s AT91SAM7FP105 is a low pincount Fingerchip processor based on the 32-bit ARM RISC processor. It features a on-chip biometric engine performing enrollment verification and identification, an internal record cache of up to 25 records and a secure command protocol over USB, SPI, UART. This protocol enables an external host system or processor to control the onchip bioengine functions, manipulate the record cache, and securely export record cache records for external storage. Together with the Fingerchip sensor device AT77C104B, it forms an embedded, secured biometric turnkey solution.
标签： processor Fingerchip pincount Atmel
上传时间： 2013-12-26
上传用户：shawvi
Full compliance with the USB Specification v1.1 and USB CDC v1.1 Support the RS232 Serial interface Support automatic handshake mode Support Remote wake-up and power management 256 bytes buffer each for upstream and downstream data flow Support default ROM or external EEPROM for device configuration On chip USB transceiver On chip crystal oscillator running at 12M Hz Supports Windows 98/SE, ME, 2000, XP, Windows CE3.0, CE .NET, Linux, and Mac OS 28 Pins SOIC package 28
标签： Specification compliance 1.1 USB
上传时间： 2016-08-21
上传用户：dapangxie
ST7787 芯片的SPEC，比亚迪2.4inchLCM的SPEC。The ST7787 is a single-chip controller/driver for 262K-color, graphic type TFT-LCD. It consists of 720 source line and 320 gate line driving circuits. This chip is capable of connecting directly to an external microprocessor, and accepts Serial Peripheral Interface (SPI), 8-bits/9-bits/16-bits/18-bits parallel interface. Display data can be stored in the on-chip display data RAM of 240x320x18 bits. It can perform display data RAM read/write operation with no external operation clock to minimize power consumption. In addition, because of the integrated power supply circuits necessary to drive liquid crystal, it is possible to make a display system with the fewest components.
上传时间： 2016-09-22
上传用户：woshini123456
Name Function --- --- --- --- --- --- Check_SST_39VF160 Check manufacturer and device ID CFI_Query CFI Query Entry/Exit command sequence Erase_Entire_chip Erase the contents of the entire chip Erase_One_Sector Erase a sector of 2048 word Erase_One_Block Erase a block of 32K word Program_One_Word Alter data in one word Program_One_Sector Alter data in 2048 word sector Program_One_Block Alter data in 32K word block Check_Toggle_Ready End of internal program or erase detection using Toggle bit Check_Data_Polling End of internal program or erase detection using Data# polling
标签： manufacturer Check_SST Function CFI_Que
上传时间： 2013-12-21
上传用户：徐孺
OpenSource GPS is software for x86 PCs that allows you to acquire, track and demodulate signals from GPS satellites. OSGPS requires a Zarlink GP2021 12 channel GPS correlator chip
标签： OpenSource demodulate software acquire
上传时间： 2016-09-28
上传用户：rocwangdp
当前LCM的主流接口有并口和串口。并口引脚多，产生串扰，串口则没有诸如此类的缺点。SPI作为串口家族的一员，具有高速同步、芯片管脚少和信号稳定不产生串扰等优点，越来越受到开发人员的青睐。但是，具有SPI的LCM并不是毫无缺点的，市场上以COG(chip on glass)方式封装的LCM大都是基于单工方式传输的，这将给开发带来了非常大的麻烦。本文主要论述基于单工SPI的GUI开发方案，详细地分析了基于单工SPI的GUI的开发开台，论述并分析在GUI开发过程中遇到的问题，最后提出增加虚拟LCD的方案解决这个问题。
上传时间： 2016-10-07
上传用户：ruixue198909
是英文 “ Surface mount technology ”的缩写。即表面安装技术，这是一种较传统的安装方式。其优点是可靠性高，缺点是体积大，成本高，限制 LCM 的小型化。 是英文 “ chip On Board ”的缩写。即芯片被邦定(Bonding)在PCB上，由于IC制造商在LCD控制及相关芯片的生产上正在减小QFP（ SMT 的一种）封装的产量，因此，在今后的产品中传统的 SMT 方式将被逐步取代。
标签： technology Surface mount 英文
上传时间： 2016-10-08
上传用户：nairui21
This program would work fine only with a specific flash tool through PC printer port under EPP mode.Program is capable of identifying flash chip manufacturer, device type, capacity,... It also allows user to dump flash data, edit/revise the content of flash chip on the Screen, and re-write them back to the chip.
标签： specific program printer through
上传时间： 2014-01-16
上传用户：ywqaxiwang
Keil C251开发工具 DK251是为MCS251系列单片机所设计的开发工具，支持所有的251系列衍生产品，方便你编写和测试c代码与251汇编代码。通过DK251开发工具可轻松了解251的On-chip peripherals与及其他关键特性。
上传时间： 2016-10-30
上传用户：yt1993410
The TMS320C54x, TMS320LC54x, and TMS320VC54x fixed-point, digital signal processor (DSP) families (hereafter referred to as the ’54x unless otherwise specified) are based on an advanced modified Harvard architecture that has one program memory bus and three data memory buses. These processors also provide an arithmetic logic unit (ALU) that has a high degree of parallelism, application-specific hardware logic, on-chip memory, and additional on-chip peripherals. These DSP families also provide a highly specialized instruction set, which is the basis of the operational flexibility and speed of these DSPs.
标签： TMS 320 fixed-point processor
上传时间： 2013-12-27
上传用户：宋桃子
