The project belongs to the science and technology field: electronics and communication science and technology/semiconductor and integrated circuit technology/application specific integrated circuit technology. The main technological innovations include: (1) In response to the problem that my country's Ethernet switching processing and other core chips rely heavily on foreign imports, the development of network switching circuits has been completed. The circuit adopts a forward design methodology, realizing simultaneous online data processing on 16 ports for the first time, achieving data line-speed forwarding and processing capabilities, solving problems such as network construction and high-speed data interconnection in multi-terminal data interconnection scenarios, and improving high-end equipment data exchange. The degree of autonomy and controllability and localization level of the system have filled the domestic gap. (2) The network switching circuit innovatively adopts real-time synchronization technology for data reception and processing, and reaches a forward-ready state after completing data reception, which is more than 10% higher than the switching efficiency of international mainstream commercial switching chips. At the same time, the circuit realizes sharing. Descriptor queue management and scheduling algorithms under the bus switching architecture meet the ability of multiple ports to simultaneously transmit and receive data. (3) The network switching circuit innovatively uses a dedicated hash algorithm to index the network switching address table. In order to avoid discarding port addresses due to hash value conflicts calculated by the 48-bit Layer 2 network addresses, the address bucket method is introduced in the design of the switch address table. When self-learning Layer 2 network addresses, addresses with the same hash value will be written into the same address bucket, thereby improving address learning efficiency and accuracy, and improving network forwarding performance. This algorithm reduces the address loss rate caused by conflicts by more than 85%. (4) The network switching circuit innovatively realizes centralized management of descriptor queues under the shared bus switching architecture, and adopts a dedicated weighted priority queue scheduling algorithm to improve internal data processing speed and meet the simultaneous transmission and reception of data from multiple ports. (5) The network switching circuit supports a variety of flexible configuration modes, and also supports the board-level power-on configuration circuit, which avoids the user's ambiguity and subjectivity of the system behavior in the manual, and ensures the consistency of the module development and designers 'understanding of functions., reduces the requirements of developers and designers for theoretical knowledge background, and provides users with more application convenience. (6) It adopts a multi-level low-power design method of architecture, dynamic frequency, gated clock, multiple power-saving modes, and multi-threshold transistor combination. The chip has a maximum power consumption of about 2.8W, which can be suitable for environments with harsh heat dissipation conditions., simplifying the thermal design difficulty of high-end equipment and improving the environmental adaptability of high-end equipment. Since the launch of the ldquo; JEM5396 low-power network switching circuit project, a total of 6 papers have been published, 4 invention patents and 1 layout design have been applied for and authorized, and 2 software copyrights have been formed. After the product was launched, it was applied by many domestic user units. The application environment includes various application scenarios such as sea, land, and air. The product prototype based on the JEM5396 chip is used in systems such as vehicles, radars, ships, and airborne equipment. The units that purchased equipment in batches after the trial include Haige Communications Co., Ltd., the 20th Research Institute of China Electronics Technology Group Corporation, Zhongyuan Communications Co., Ltd., Real-Time Technology Co., Ltd. and National Defense University of Science and Technology. More than 20 units have completed the finalization and equipment application of the complete equipment. In the past three years, more than 17 million new output value has been formed, driving more than 30 million new output value of user application units. This product achievement provides platform support for domestic data exchange platforms, greatly improving the product maturity and autonomous controllability of equipment.