Patent ID: 8605902

Claim:
A method for providing dynamic switching between red side control functionality and black side control functionality for a radio system, said method comprising: providing a message from black side control elements of the radio system to a black side human machine interface digital signal processor, said message including a mode change request; directing a communication, via a low voltage differential signaling interface, from the black side human machine interface digital signal processor to a protected core processor, the protected core processor being configured for hosting the red side control functionality, the communication informing the protected core processor of the mode change request; sending a control transfer message, via a cryptographic sub-system, from the protected core processor to the black side human machine interface digital signal processor; switching the black side control elements, wherein switching the black side control elements includes disconnecting the black side control elements from the black side human machine interface digital signal processor and connecting the black side control elements and the protected core processor via the low voltage differential signaling interface; and providing the red side control functionality for the radio system via the protected core processor, wherein the black side control elements are controlled by the protected core processor, wherein the black side human machine interface digital signal processor is placed into a low power operation mode when the black side control elements are controlled by the protected core processor.