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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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Toshiba T6963 controller chip of the 240,128 dot
东芝T6963控制芯片的240128点阵液晶屏驱动程序-Toshiba T6963 controller chip of the 240,128 dot-matrix LCD driver
- 2022-09-30 23:50:03下载
- 积分：1
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这是一个ZLG7289的读键盘程序，源码调试通过，绝对好用
这是一个ZLG7289的读键盘程序，源码调试通过，绝对好用-This is a read keyboard ZLG7289 procedures, debugging source code is passed, the absolute ease of use
- 2022-08-25 20:23:31下载
- 积分：1
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usb client pc download the source code of DNW, with the development board can US...
pc端usb下载程序DNW的源代码，配合开发板usbd程序可以实现pc和开发板互通-usb client pc download the source code of DNW, with the development board can USBD pc and realize mutual development board
- 2022-08-14 12:15:20下载
- 积分：1
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MSP430单片机的实时多任务操作系统c源代码
MSP430单片机的实时多任务操作系统c源代码-MSP430 MCU RTOS c source code
- 2022-03-10 13:57:43下载
- 积分：1
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can debug an MCS
一个可以调试MCS-51指令系统的中文调试软件，此调试软件可以对C51和A51进行编译连接，操作十分简单，而且还可以通过主面版对SFR中的内容进行观察，对学习80C51单片机的学生用十分重要的用途-can debug an MCS-51 instruction in Chinese debug software, this software can debug C51 and A51 to compile links, operation is very simple, but also through the main panels on the content of SFR observe, to learn 80C51 microcontroller with the students the importance of the use of
- 2022-07-26 05:53:24下载
- 积分：1
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c8051f系列HEX例程，几乎是全系列的
c8051f系列HEX例程，几乎是全系列的-HEX Series c8051f routine, almost full range of
- 2022-02-03 08:03:55下载
- 积分：1
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数码管设计软件！可以自动生成数码管的编码！支持MCS
数码管设计软件！可以自动生成数码管的编码！支持MCS-51，PIC，AVR，能生成共阳的或共阴的编码，可以是汇编格式和C语言格式！-Digital control design software! The digital control can automatically generate the code! Support for MCS-51, PIC, AVR, can generate a total of yin-yang, or a total coding, which can be compiled format and C language format!
- 2022-02-05 14:42:47下载
- 积分：1
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EP1C3144 the basic procedures of the light lamps, suitable for beginners
EP1C3144的点灯基本程序，适合于初学者-EP1C3144 the basic procedures of the light lamps, suitable for beginners
- 2022-03-17 22:12:09下载
- 积分：1
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the SCM and PC communications in the Windows source code
有关单片机和PC机通信的在Windows下的源代码-the SCM and PC communications in the Windows source code
- 2022-01-25 16:44:43下载
- 积分：1
