Bus-type microcontroller: It has parallel address bus, data bus and control bus external pins, which can be used to expand peripheral devices in parallel.
Non-bus type MCU: No parallel address bus, data bus and control bus external pins, can not expand peripheral devices in parallel. The required external rigid devices and peripheral interfaces are integrated into the MCU, eliminating the address bus, data bus and useless control terminal lines originally used for parallel expansion, reducing the number of chip pins and chip size. If expansion is needed, it can be expanded through the serial port.
Due to the development of serial expansion technology and the application of on-chip Flash ROM, non-bus type microcontrollers will gradually become the mainstream direction of microcontroller development.
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Electromagnetic compatibility interface circuit design scheme
Design paper of dot matrix electronic display screen- Download from the Internet--ARM Getting Started NotesA brief introduction: From today on, the ARM notebook of the rookie is open, and it can be regarded as a place to store these notes. Why publish it? Maybe you are interested in it. In fact, the reason for these notes is ...
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Professor at Beihang University, dedicated to promoting microcontrollers and embedded systems for over 20 years.
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