SYSTEM AND METHOD FOR VEHICLE MODULE WAKE UP IN RESPONSE TO COMMUNICATION ACTIVITY
First Claim
1. A method for establishing communication between a communication protocol controller and a main controller, the method comprising:
- monitoring a communication bus using a power management device wherein the communication bus is electrically coupled to a communication protocol controller, the power management device, and a main controller residing in an initial low power mode and having a processor and a data storage device;
determining when the communication protocol controller is attempting to communicate with the main controller;
generating a wake-up signal in response to the attempted communication;
presenting the wake-up signal to the processor of the main controller, wherein the main controller enters a wake-up mode in response to the wake-up signal;
reading at least one communication protocol configuration parameter from the data storage device, wherein the at least one configuration parameter is read by the main controller in response to the wake-up signal; and
initiating communication between the main controller and the communication protocol controller using the at least one communication protocol configuration parameter such that communication between the communication protocol controller and a communication protocol enabled device is maintained.
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Abstract
A method for establishing communication between a communication protocol controller and a main controller including the steps of monitoring a communication bus using a power management device wherein the bus is electrically coupled to the protocol controller, the power management device, and the main controller residing in an initial low power mode, determining when the protocol controller is attempting to communicate with the main controller, generating a wake-up signal in response to the attempted communication, presenting the wake-up signal to the processor of the main controller, wherein the main controller enters a wake-up mode in response to the wake-up signal, reading at least one communication protocol configuration parameter from the data storage device, and initiating communication between the main controller and the protocol controller using the at least one communication protocol configuration parameter such that communication between the protocol controller and a communication protocol enabled device is maintained.
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Citations
20 Claims
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1. A method for establishing communication between a communication protocol controller and a main controller, the method comprising:
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monitoring a communication bus using a power management device wherein the communication bus is electrically coupled to a communication protocol controller, the power management device, and a main controller residing in an initial low power mode and having a processor and a data storage device;
determining when the communication protocol controller is attempting to communicate with the main controller;
generating a wake-up signal in response to the attempted communication;
presenting the wake-up signal to the processor of the main controller, wherein the main controller enters a wake-up mode in response to the wake-up signal;
reading at least one communication protocol configuration parameter from the data storage device, wherein the at least one configuration parameter is read by the main controller in response to the wake-up signal; and
initiating communication between the main controller and the communication protocol controller using the at least one communication protocol configuration parameter such that communication between the communication protocol controller and a communication protocol enabled device is maintained. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A system for establishing communication between a communication protocol controller and a main controller, the system comprising:
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a communication protocol controller electrically coupled to a communication bus;
a main controller electrically coupled to the communication bus and having a processor and a data storage device including at least one communication protocol configuration parameter, wherein the main controller is in an initial low power mode; and
a power management device electrically coupled to the communication bus, wherein the power management device monitors the communication bus, determines when the communication protocol controller is attempting communication with the main controller, generates a wake-up signal in response to the attempted communication, and presents the wake-up signal to the processor of the main controller, and in response to the wake-up signal the main controller enters a wake-up mode, reads the at least one communication protocol configuration parameter from the data storage device, and implements the at least one communication protocol configuration parameter such that communication between the main controller and the communication protocol controller is established while maintaining a communication link between the communication protocol controller and a communication protocol enabled device. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A main controller for communicating with a communication protocol controller, the main controller comprising:
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a processor;
a data storage device;
a first bidirectional communication port electrically coupled to a communication protocol controller via a communication bus; and
an input port configured to receive a wake-up signal from a power management device, wherein the main controller enters a wake-up mode in response to the wake-up signal and reads at least one communication protocol configuration parameter from the data storage device such that communication between the main controller and the communication protocol controller is established while communication between the communication protocol controller and a communication protocol enabled device is maintained. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification