PIN FUNCTION ............................................................................................................................... 12
5.1
5.2
5.3
Port Pins ................................................................................................................................................ 12
Pins Other Than Port Pins .................................................................................................................. 14
I/O Circuit Type of Respective Pins and Recommended Connections of Unused Pins ........... 16
3.
4.
5.
6.
CPU ARCHITECTURE ................................................................................................................... 20
6.1
6.2
Memory Space ...................................................................................................................................... 20
CPU Registers ...................................................................................................................................... 23
Serial Interface ..................................................................................................................................... 39
7.7.1
7.7.2
7.8
7.9
Asynchronous serial interface/3-wire serial I/O (UART/IOE) ...................................................... 40
Clocked serial interface (CSI) ..................................................................................................... 42
Clock Output Function ........................................................................................................................ 43
Buzzer Output Function ...................................................................................................................... 44
7.10 Edge Detection Function .................................................................................................................... 44
Macro Service ....................................................................................................................................... 49
Application Example of Macro Service ............................................................................................. 50
I have an order in hand, which requires me to use my IC card to buy gas through a bank ATM. Where should I start? What is the specific process? Is it difficult?...
PCI bus, the interface chip is the CH365 chip of Nanjing Qinheng Electronics, the CPLD chip is the XC9536 of Xilinx, and 4 273 chips and 4 374 chips are connected. The program in the XC9536 chip is wr...
The only designated embedded training base of Anhui Provincial Department of Information Industry is located in Hefei. Its training curriculum system mainly includes ARM+Linux curriculum system, basic...
Today, with the increasing integration of functions, mobile phones can also be used as portable media players (PMP), digital cameras, handheld computers (PDAs), and even global positioning systems ...[Details]
introduction
Throughout the history of automotive lighting, power has always played an important role. Initially, cars only needed headlights to see the road in the dark. Later, other light so...[Details]
Power management solutions for today's portable application processors are becoming increasingly integrated. Total power consumption, standby and sleep current consumption affect battery size, bill...[Details]
This paper establishes a fuel cell engine test platform based on the NI integrated hardware and software environment. This platform can realize the test and control of fuel cell engines and their a...[Details]
1. What is temperature?
Heat is a type of molecular motion. The hotter an object is, the faster its molecules move. Absolute zero is defined as the temperature at which all molecular motion ...[Details]
1. System Structure
This system is a simulation system of indoor air-conditioning temperature/humidity control system. The data acquisition and control center collects temperature/humidity...[Details]
1 Introduction
Building Automation System (BAS) is a distributed monitoring system (DCS) designed according to distributed information and control theory. It is the result of the mutual de...[Details]
1 Introduction
With the development of control, computer, communication, network technology, etc., a new control technology, namely fieldbus, has emerged in the field of industrial control...[Details]
In recent years, with the rapid development of the information industry, dot matrix LED display screens have been widely used in various advertising and information display systems such as the fina...[Details]
I've been studying dot matrix recently. It looks simple, but it takes a while to master it completely! The 8*8 dot matrix hardware circuit I'm making now is like this. The row is driven by 74HC138 + t...[Details]
Today, the value of electronic components in cars accounts for 15-20% of the total vehicle. In the future, this proportion may be as high as 30-40% as more safety electronics, fuel consumption and ...[Details]
To understand how and why OLED power supply affects display image quality, you must first understand OLED display technology and power supply requirements. This article will explain the latest OLED...[Details]
introduction
Incandescent bulbs can emit a variety of light, but in specific applications, only green, red, and yellow light are usually needed - such as traffic lights. If an incand...[Details]
At present, a large number of cooling tower fans, speed fans and special fans are in use in petroleum, chemical, pharmaceutical, metallurgical and other enterprises. Some fans have no monitoring in...[Details]