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由8051组成的单片机系统通常情况下,P0口分时复用作为地址、数据总线,P2口提供A15...
由8051组成的单片机系统通常情况下,P0口分时复用作为地址、数据总线,P2口提供A15-A8即高8位地址,P3口用作第二功能,只有P1口通常用作I/0口。P1口是8位准双向口,它的每一位都可独立地定义为输入或输出,因此既可作为8位的并行I/O口,也可作为8位的输入输出端。当工作在输入方式时,对应位的锁存器必须先置1,才能正确地读到引脚上的信号,否则,执行读引脚指令时,若对应位的锁存器的值为0,读的结果永远为0。-By 8051, composed of single-chip microcomputer system under normal circumstances, P0 timeshare I reuse as address, data bus, P2 I provide A15-A8 high eight address, P3 mouth for the second function, I usually only P1 for I/0 I. P1 I was eight quasi-two-way port, it can be independent of each and every defined as input or output, it can be used as 8-bit parallel I/O port, can also be used as 8-bit input and output side. When the work in the input, the corresponding bit latch must first buy one in order to correctly read the signal pin, or pin the implementation of reading instruction, if the corresponding bit latch the value of 0, Reading the results of Forever to 0.
- 2023-08-10 04:55:03下载
- 积分:1
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Hardware display driver section of the gate and the median of the four control o...
驱动显示屏硬件的栅和段的位数,控制16312的四个输出口数据。-Hardware display driver section of the gate and the median of the four control output 16312 data.
- 2022-07-19 13:04:19下载
- 积分:1
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LTC1446是一种采用12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、12位A/D转换器、数据寄存器以及控制逻辑电路。LTC1446每25u...
LTC1446是一种采用12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、12位A/D转换器、数据寄存器以及控制逻辑电路。LTC1446每25uS重复一次“输入――转换――输出”。器件有两个控制输入:DIN CLK和片选(CS)。
内部系统时钟和DIN CLK可独立使用。应用电路的设计只需利用时钟启动转换或读出转换结果。当CS为高电平时, Dout处于高阻态且DIN时钟被禁止。
- 2022-04-16 02:58:29下载
- 积分:1
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采用8位LED动态扫描时钟演示程序
使用12MHZ晶振,P0口输出段码,P2口作列扫描,用共阳LED数码管...
采用8位LED动态扫描时钟演示程序
使用12MHZ晶振,P0口输出段码,P2口作列扫描,用共阳LED数码管-Using 8-bit LED Dynamic scan demo program using the 12Mhz clock crystal, P0 port output above code, P2 I make out scanning, with a total of Yang LED digital tube
- 2022-03-14 10:35:26下载
- 积分:1
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Video generator sa pic16f84
Video generator sa pic16f84
- 2022-07-07 03:49:14下载
- 积分:1
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2004计算机专业单片机微型打印机接口
2004计算机专业单片机微型打印机接口-2004 computer professional SCM Micro Printer interface
- 2022-05-12 18:25:51下载
- 积分:1
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8051+ 24c01
8051+24c01电话
- 2022-10-24 12:25:03下载
- 积分:1
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LCD基础知识 用以学校LCD 使用于单片机
LCD基础知识 用以学校LCD 使用于单片机-LCD basic knowledge to schools for use in single-chip LCD
- 2023-04-18 15:50:07下载
- 积分:1
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这是从网上找来的一个比较典型的PID处理程序,在使用单片机作为控制cpu时,请稍作简化。...
这是从网上找来的一个比较典型的PID处理程序,在使用单片机作为控制cpu时,请稍作简化。-It is found from the Internet a more typical PID treatment procedures, the use of single-chip microcomputer as the control cpu, please make some simplification.
- 2023-05-13 11:20:03下载
- 积分:1
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用C8051F310的定时器来实现定时中断,进而实现在扬声器实现不同声音的输出...
用C8051F310的定时器来实现定时中断,进而实现在扬声器实现不同声音的输出-C8051F310 timer used to achieve regularly interrupted, and then realize the sound at different speaker output
- 2022-01-21 21:23:24下载
- 积分:1