摘要:
Network-on-Chip (NoC) is an oncoming solution to the communication bottleneck of System-on-Chip (SoC). For a good design, it runs a simulation verification before the design is realized. The key factors to the accuracy and simulation speed of a simulator depend on how the simulator abstracts the NoC design. The present invention provides an object-oriented NoC modeling, which divides the NoC design space into many design blocks and models them into many abstraction levels. The present invention defines these models carefully to obtain good hardware accuracy. The present invention also provides an object implementation library of different abstraction levels. Thereby, the present invention can reduce the coding time via selecting required components from the object implementation library, inheriting them with some modifications or using them directly. The present invention extends the design exploration space of NoC, preserves good hardware characteristics, and significantly reduces coding effort of a new NoC design.
摘要:
A method and apparatus for switching data in communication system which comprises of mainly a conversion circuit to receive source data possessing real coding dimension and covert it to converted data possessing tolerable coding dimension; judgment bit is set in the converted data to designate the data as source data or not. Later on, shift circuit is used to shift the converted data in certain amount so as to generate a shifted data; meanwhile, the lowest bit and highest bit of shifted data are used to start acquiring real coding dimension to be used respectively as a first data and a second data, or by changing the pattern of acquiring the first data, then the highest bit minus the real coding dimension bit as the starting bit of the first data, and acquiring the real coding dimension from the side of the lowest bit. Finally, a comparison and selection circuit is used to compare the corresponding judgment bit in the first and the second data and to output an output data, wherein output data is source data with the above-mentioned amount of shift.
摘要:
A method and apparatus for switching data in communication system which comprises of mainly a conversion circuit to receive the source data possessing in a real coding dimension and covert it to converted the data possessing in a tolerable coding dimension; the judgment bits are set in the converted data to designate the data as source data or not. Later on, shifter circuit is used to shift the converted data in certain amount and generates a shifted data; meanwhile, the right side and left side of shifted data are used to start acquiring the real coding dimension to be used respectively as a first data and a second data. Finally, a comparison and selection circuit is used to compare the corresponding judgment bits in the first and the second data and to output an output data, wherein output data is source data with the above-mentioned amount of shift.
摘要:
A method and apparatus for switching data in communication system which comprises of mainly a conversion circuit to receive the source data possessing in a real coding dimension and covert it to converted the data possessing in a tolerable coding dimension; the judgment bits are set in the converted data to designate the data as source data or not. Later on, shifter circuit is used to shift the converted data in certain amount and generates a shifted data; meanwhile, the right side and left side of shifted data are used to start acquiring the real coding dimension to be used respectively as a first data and a second data. Finally, a comparison and selection circuit is used to compare the corresponding judgment bits in the first and the second data and to output an output data, wherein output data is source data with the above-mentioned amount of shift.
摘要:
A method and apparatus for switching data in communication system which comprises of mainly a conversion circuit to receive source data possessing real coding dimension and covert it to converted data possessing tolerable coding dimension; judgment bit is set in the converted data to designate the data as source data or not. Later on, shift circuit is used to shift the converted data in certain amount so as to generate a shifted data; meanwhile, the lowest bit and highest bit of shifted data are used to start acquiring real coding dimension to be used respectively as a first data and a second data, or by changing the pattern of acquiring the first data, then the highest bit minus the real coding dimension bit as the starting bit of the first data, and acquiring the real coding dimension from the side of the lowest bit. Finally, a comparison and selection circuit is used to compare the corresponding judgment bit in the first and the second data and to output an output data, wherein output data is source data with the above-mentioned amount of shift.
摘要:
Network-on-Chip (NoC) is to solve the performance bottleneck of communication in System-on-Chip, and the performance of the NoC significantly depends on the application traffic. The present invention establishes a system framework across multiple layers, and defines the interface function behaviors and the traffic patterns of layers. The present invention provides an application modeling in which the task-graph of parallel applications is described in a text method, called Parallel Application Communication Mechanism Description Format. The present invention further provides a system level NoC simulation framework, called NoC-centric System Exploration Platform, which defines the service spaces of layers in order to separate the traffic patterns and enable the independent designs of layers. Accordingly, the present invention can simulate a new design without modifying the framework of simulator or interface designs. Therefore, the present invention increases the design spaces of NoC simulators, and provides a modeling to evaluate the performance of NoC.