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US 2012/0084482 A1Published application
Semiconductor data processing device and data processing system
AssigneeRenesas Electronics Corporation
InventorsSatoshi Yamanaka, Yoshifumi Kawamura
Life of this patent
Estimating the term…
Abstract
A communication control function is implemented with limited hardware resources without hampering the extensibility and degrading the processing performance. In an electric control unit coupled to a network bus comprises a reconfiguration module using for processing message received from the network bus. The reconfiguration module is made for configuring the processing circuit in accordance with the message transferred on the network bus to be processed.
Claims17
A semiconductor data processing device comprising:
- an external interface circuit;
- a function reconfiguration module in which a logic function according to written function definition data is set;
- and
- a central processing unit which writes the function definition data to the function reconfiguration module to set, in the function reconfiguration module, a data processing function of data which the external interface circuit interfaces, and uses the set data processing function,
- wherein the function reconfiguration module in which the data processing function has been set includes, as a transmission data processing function unit,
- an input data determination unit for determining a data ID of transmission data sequentially generated and supplied through data processing by the central processing unit,
- a plurality of transmission packet generation units each for receiving transmission data corresponding to a data ID determination result by the input data determination unit and configuring a packet to be transmitted,
- a sequence control unit for controlling transmission sequence of the packet generated by each transmission packet generation unit and outputting the packet, and
- a packet transfer unit for providing, to the external interface circuit, the packet outputted from the sequence control unit.
6 more elements
A semiconductor data processing device comprising:
- an external interface circuit;
- a function reconfiguration module in which a logic function according to written function definition data is set;
- and
- a central processing unit which writes the function definition data to the function reconfiguration module to set, in the function reconfiguration module, a data processing function of data which the external interface circuit interfaces, and uses the set data processing function,
- wherein the function reconfiguration module in which the data processing function has been set includes, as a reception data processing function unit:
- an input packet determination unit for determining a packet ID of a reception packet supplied from the external interface circuit;
- a data extraction unit for extracting necessary reception data based on a configuration of a packet corresponding to a packet ID determination result by the input packet determination unit, adding a corresponding data ID to the reception data, and storing them;
- and
- a data transfer unit for supplying the reception data and the data ID stored in the data extraction unit to a transfer destination unit in accordance with a state of the transfer destination unit.
6 more elements
Dependencies are inferred from the claim text.