主要介绍构成记忆示波器的STC12C5408AD增强型单片机8通道10位模数转换功能的设置、应用和具体的汇编程序设计，以及PC机串行通讯和图形显示的高速汇编程序的设计要点，并列举实例说明其应用效果。 Abstract: The configuration, applications and the designs for? compiling program of the memorial oscillograph of 10 bits A/D conversation are introduced. It’s bases on STC12C5408AD 8? channels? single-chip? computer? in? enhancement? mode. It also recommends the devising essentials of high speed compiling program for PC serial communication and graphics display, lists examples to explain its effects in using.
上传时间： 2013-10-10
上传用户：adada
The CAT93C46 is a 1 kb Serial EEPROM memory device which isconfigured as either 64 registers of 16 bits (ORG pin at VCC) or 128registers of 8 bits (ORG pin at GND). Each register can be written (orread) serially by using the DI (or DO) pin. The CAT93C46 features aself−timed internal write with auto−clear. On−chip Power−On Resetcircuit protects the internal logic against powering up in the wrongstate.
上传时间： 2013-11-20
上传用户：ynzfm
The PCA9536 is an 8-pin CMOS device that provides 4 bits of General Purpose parallel Input/Output (GPIO) expansion for I2C-bus/SMBus applications and was developed to enhance the NXP Semiconductors family of I2C-bus I/O expanders. I/O expanders provide a simple solution when additional I/O is needed for ACPI power switches, sensors, push buttons, LEDs, fans, etc.
上传时间： 2013-10-27
上传用户：w230825hy
The PCA9534 is a 16-pin CMOS device that provide 8 bits of General Purpose parallel Input/Output (GPIO) expansion for I2C-bus/SMBus applications and was developed to enhance the NXP Semiconductors family of I2C-bus I/O expanders. The improvements include higher drive capability, 5 V I/O tolerance, lower supply current, individual I/O configuration, 400 kHz clock frequency, and smaller packaging. I/O expanders provide a simple solution when additional I/O is needed for ACPI power switches, sensors, push buttons, LEDs, fans, etc.
上传时间： 2013-11-17
上传用户：vodssv
The CAT28LV64 is a low voltage, low power, CMOS Parallel EEPROM organized as 8K x 8−bits. It requires a simple interface for in−system programming. On−chip address and data latches, self−timed write cycle with auto−clear and VCC power up/down write protection eliminate additional timing and protection hardware. DATA Polling and Toggle status bit signal the start and end of the self−timed write cycle. Additionally, the CAT28LV64 features hardware and software write protection.
上传时间： 2013-11-16
上传用户：浩子GG
The CAT25128 is a 128−Kb Serial CMOS EEPROM device internally organized as 16Kx8 bits. This features a 64−byte page write buffer and supports the Serial Peripheral Interface (SPI) protocol. The device is enabled through a Chip Select (CS) input. In addition, the required bus signals are clock input (SCK), data input (SI) and data output (SO) lines. The HOLD input may be used to pause any serial communication with the CAT25128 device. The device featuressoftware and hardware write protection, including partial as well as full array protection.
上传时间： 2013-11-15
上传用户：fklinran
ARM指令集(2) 1．跳转指令 在ARM中有两种方式可以实现程序的跳转：一种是刀‘转指令；另一种是直接向PC寄存器（R15）中写入目标地址值。 通过直接向PC寄存器中写入目标地址值可以实现在46B地址空间中任意跳转，这种跳转指令又称为长跳转。如果在长跳转指令之前使用MOV LR，PC等指令，则可以保存将来返回的地址值，这样就实现了在46B地址空间中的子程序调用。 在ARM版本5及以上的体系中，实现了ARM指令集和Thumb指令集的混合使用。指令使用目标地址值的bit［0］来确定目标程序的类型。bit［0］的值为1时，目标程序为Thumb指令；bit［0］值为0时，目标程序为ARM指令。 在ARM版本5以前的体系中，传送到PC寄存器中的目标地址值的低两位bits［1∶0］被忽略，跳转指令只能在ARM指令集中执行，即程序不能从ARM状态切换到Thumb状态。非T系列ARM版本5体系不含Thumb指令，当程序试图切换到Thumb状态时，将产生未定义指令异常中断。 ARM跳转指令可以从当前指令向前或向后的32MB地址空间跳转。这类跳转指令有以下4种。
上传时间： 2013-11-20
上传用户：妄想演绎师
The PCA9534 is a 16-pin CMOS device that provide 8 bits of General Purpose parallel Input/Output (GPIO) expansion for I2C-bus/SMBus applications and was developed to enhance the NXP Semiconductors family of I2C-bus I/O expanders. The improvements include higher drive capability, 5 V I/O tolerance, lower supply current, individual I/O configuration, 400 kHz clock frequency, and smaller packaging. I/O expanders provide a simple solution when additional I/O is needed for ACPI power switches, sensors, push buttons, LEDs, fans, etc.
上传时间： 2013-10-10
上传用户：inwins
The PCA9535 and PCA9535C are 24-pin CMOS devices that provide 16 bits of GeneralPurpose parallel Input/Output (GPIO) expansion for I2C-bus/SMBus applications and wasdeveloped to enhance the NXP Semiconductors family of I2C-bus I/O expanders. Theimprovements include higher drive capability, 5 V I/O tolerance, lower supply current,individual I/O configuration, and smaller packaging. I/O expanders provide a simplesolution when additional I/O is needed for ACPI power switches, sensors, push buttons,LEDs, fans, etc.
上传时间： 2013-10-21
上传用户：爱死爱死
The PCA9536 is an 8-pin CMOS device that provides 4 bits of General Purpose parallelInput/Output (GPIO) expansion for I2C-bus/SMBus applications and was developed toenhance the NXP Semiconductors family of I2C-bus I/O expanders. I/O expanders providea simple solution when additional I/O is needed for ACPI power switches, sensors,push buttons, LEDs, fans, etc.
上传时间： 2013-10-09
上传用户：731140412
