Data processing system, data processing method, and apparatus
View Patent ↗A data processing system may include a first data path and a second data path. A set of components may include a system component and a partner component, each having a communication interface for communicating data. The components are operable in a synchronized mode and a non-synchronized mode with respect to each other. The set may further include a configuration control system connected to the system component and the partner component, for controlling the set to be in a synchronized mode configuration or a non-synchronized mode configuration. The configuration control system may include a first path selector module connecting the communication interface of the system component to the first data path and the second data path and a partner path selector module connecting the communication interface of the partner component to the first data path and the second data path. The path selector modules may be arranged to enable, depending on the configuration, communication of data to the respective component via one or more selected data path, selected from the first data path and the second data path, and to inhibit communication via the not selected data paths.
1. A data processing system, comprising:
a first communication bus and a second communication bus;
at least one set of components, said set including:
a system component and a partner component,
each having a communication interface for communicating data, said components being operable in a synchronized mode and a non-synchronized mode with respect to each other;
said set further including a configuration control system connected to said system component and said partner component, for controlling said set to be in a synchronized mode configuration or a non-synchronized mode configuration, said configuration control system including:
a first bus selector module connecting the communication interface of said system component to said first communication bus and said second communication bus and
a partner bus selector module connecting the communication interface of said partner component to said first communication bus and said second communication bus,
said bus selector modules being arranged to enable, depending on the configuration, communication of data to the respective component via at least one selected communication bus, selected from said first communication bus and said second communication bus, and to inhibit communication via the not selected communication bus(es).
2. A data processing system as claimed in claim 1 , wherein said configuration control system includes:
a first comparator module connected with at least one input to said first communication bus and said second communication bus; and
a partner comparator module connected with at least one input to said partner component to said first communication bus and to said second communication bus;
said comparator modules being connected with a control output to at least one of said communication interfaces, for controlling the respective component based on a comparison of data transmitted via the first communication bus with data transmitted via the second communication bus.
3. A data processing system as claimed in claim 2 , wherein said configuration control system includes a mode transition control module connected to said path selector modules, for transmitting a mode transition signal from the mode transition control module to said bus selector modules, in response to which said bus selector modules select said at least one selected communication bus in accordance with a desired configuration.
4. A data processing system as claimed in claim 2 , wherein said configuration control system includes:
a component state sensor module connected with at least one input to said system component, and
a partner state sensor module connected with at least one input to said partner component,
said state sensor modules being arranged to determine whether or not the respective component is in a switch ready state, ready to be switched from synchronized mode to said non-synchronized mode and/or vice versa and said state sensor modules including an output for outputting a switch ready signal when the respective component is in said switch ready state.
5. A data processing system as claimed in claim 4 , wherein said configuration control system includes a mode transition control module connected to said path selector modules, for transmitting a mode transition signal from the mode transition control module to said bus selector modules, in response to which said bus selector modules select said at least one selected communication bus in accordance with a desired configuration; and
wherein said state sensor module are connected with their respective outputs to said mode transition control module, for transmitting said switch ready signal to the mode transition control module, and wherein said mode transition control module is arranged to output said mode transition signal in case switch ready signals from all the components in the set have been received.
6. A data processing system as claimed in claim 2 , wherein said first comparator module and said partner comparator module each have a comparator output for outputting a result of said comparison and including a central control module connected to the comparator outputs, for comparing the results and controlling at least a part of the data processing system based on this result.
7. A data processing system as claimed in claim 6 , wherein said configuration control system includes a mode transition control module connected to said path selector modules, for transmitting a mode transition signal from the mode transition control module to said bus selector modules, in response to which said bus selector modules select said at least one selected communication bus in accordance with a desired configuration.
8. A data processing system as claimed in claim 6 , wherein said configuration control system includes:
a component state sensor module connected with at least one input to said system component, and
a partner state sensor module connected with at least one input to said partner component,
said state sensor modules being arranged to determine whether or not the respective component is in a switch ready state, ready to be switched from synchronized mode to said non-synchronized mode and/or vice versa and said state sensor modules including an output for outputting a switch ready signal when the respective component is in said switch ready state.
9. A data processing system as claimed in claim 8 , wherein said configuration control system includes a mode transition control module connected to said path selector modules, for transmitting a mode transition signal from the mode transition control module to said bus selector modules, in response to which said bus selector modules select said at least one selected communication bus in accordance with a desired configuration; and
wherein said state sensor module are connected with their respective outputs to said mode transition control module, for transmitting said switch ready signal to the mode transition control module, and wherein said mode transition control module is arranged to output said mode transition signal in case switch ready signals from all the components in the set have been received.
10. A data processing system as claimed in claim 1 , wherein said configuration control system includes a mode transition control module connected to said path selector modules, for transmitting a mode transition signal from the mode transition control module to said bus selector modules, in response to which said bus selector modules select said at least one selected communication bus in accordance with a desired configuration.
11. A data processing system as claimed in claim 10 , wherein said configuration control system includes:
a component state sensor module connected with at least one input to said system component, and
a partner state sensor module connected with at least one input to said partner component,
said state sensor modules being arranged to determine whether or not the respective component is in a switch ready state, ready to be switched from synchronized mode to said non-synchronized mode and/or vice versa and said state sensor modules including an output for outputting a switch ready signal when the respective component is in said switch ready state.
12. A data processing system as claimed in claim 11 , wherein said configuration control system includes a mode transition control module connected to said path selector modules, for transmitting a mode transition signal from the mode transition control module to said bus selector modules, in response to which said bus selector modules select said at least one selected communication bus in accordance with a desired configuration; and
wherein said state sensor module are connected with their respective outputs to said mode transition control module, for transmitting said switch ready signal to the mode transition control module, and wherein said mode transition control module is arranged to output said mode transition signal in case switch ready signals from all the components in the set have been received.
13. A data processing system as claimed in claim 1 , wherein said configuration control system includes:
a component state sensor module connected with at least one input to said system component, and
a partner state sensor module connected with at least one input to said partner component,
said state sensor modules being arranged to determine whether or not the respective component is in a switch ready state, ready to be switched from synchronized mode to said non-synchronized mode and/or vice versa and said state sensor modules including an output for outputting a switch ready signal when the respective component is in said switch ready state.
14. A data processing system as claimed in claim 13 ,
wherein said configuration control system includes a mode transition control module connected to said path selector modules, for transmitting a mode transition signal from the mode transition control module to said bus selector modules, in response to which said bus selector modules select said at least one selected communication bus in accordance with a desired configuration; and
wherein said state sensor module are connected with their respective outputs to said mode transition control module, for transmitting said switch ready signal to the mode transition control module, and wherein said mode transition control module is arranged to output said mode transition signal in case switch ready signals from all the components in the set have been received.
15. A data processing system as claimed in claim 1 , wherein said non-synchronised mode includes one or more of the group consisting of: a-synchronised mode, test mode, N-version software mode.
16. A data processing system as claimed in claim 1 , including a plurality of sets and/or at least one system component without a partner component.
17. A data processing system as claimed in claim 1 , wherein said components include one or more of the group consisting of: processor core, memory, peripheral.
18. A data processing system as claimed in claim 1 , wherein said data processing system is implemented as a microprocessor.
19. An apparatus including a data processing system as claimed in claim 1 .
20. A method for processing data in a data processing system, said system including a first communication bus and a second communication bus, at least one set of a system component and a partner component, each having a communication interface for communicating data, said components being operable in a synchronized mode and a non-synchronized mode with respect to each other; said method comprising:
controlling said set to be in a synchronized mode configuration or a non-synchronized mode configuration, said controlling including:
enabling, depending on a desired configuration, communication of data to the system component and the partner component via at least one selected communication bus, selected from said first communication bus and said second communication bus, and to inhibit communication via the not selected communication bus.