Method of resetting coupled modules and system using the method
AssigneeTexas Instruments Incorporated
InventorsKeith Balmer, Iain C. Robertson
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Abstract
A method of resetting coupled modules and a system using the method are disclosed. The method comprises applying a reset instruction signal to a selected module, the selected module generating a reset permission request signal, one or more other modules (other than the selected module) receiving the reset permission request signal and taking necessary action to avoid system malfunction after the selected module is reset, the one or more other modules sending a permission granted signal, and resetting the selected module once it is determined that the one or more modules have sent a permission granted signal. Other methods and systems are disclosed.
Claims12
A method of resetting a selected module of a system said system comprising a plurality of modules coupled together by a communication network, the exchange of signals between said plurality of modules over said communication network being governed by a protocol, said method comprising:
- applying to said selected module a reset instruction signal;
- said selected module responding to said reset instruction signal causing a reset permission request signal to be applied to one or more of said plurality of modules other than said selected module;
- said one or more of said plurality of modules responding to said reset permission request signal by sending a permission granted signal after said one or more of said plurality of modules has taken necessary action such that said system does not malfunction after said selected module is reset;
- determining that said one or more of said plurality of modules has sent a permission granted signal;
- and
- resetting said selected module after said determination is made.
A system having a plurality of modules coupled together by a communication network, the exchange of signals between said plurality of modules over said network being governed by a protocol, said system further comprising:
- first application means for applying to a selected module a reset instruction signal;
- second application means for applying to one or more of said plurality of modules a reset permission request signal in response to receipt of said reset instruction signal;
- said one or more of said plurality of modules receiving said reset permission request signal comprising means for taking necessary action, in response to the reset permission request signal, such that said system does not malfunction after said selected module has been reset, and means for producing a permission granted signal after said action has been taken;
- logic means for determining that said one or more of said plurality of modules that received the reset permission request signal has produces a permission granted signal;
- and
- means for resetting said selected module in response to said logic means.
Dependencies are inferred from the claim text.