Patent ID: 11907149
Assignee: QUALCOMM INCORPORATED
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 6:
7. An integrated circuit (IC), comprising:
a communication link interface comprising:
a two-wire interface comprising a low-speed interface; and
a high-speed interface operative at a high speed greater than a low speed associated with the low-speed interface; and

a control circuit coupled to the communication link interface and configured to:
use a current mode based messaging over the low-speed interface to negotiate a transition to a new mode for communications with a remote IC over the two-wire interface, wherein a first protocol corresponds to the current mode;
transition to using a new protocol corresponding to the new mode;
operate using the new protocol;
subsequently, change operation from the second protocol back to the first protocol using the new mode based messaging;
while in an idle mode, hold at least one wire of the two-wire interface in a default idle mode;
determine that a wake up is needed;
wake up the IC; and
drive the at least one wire of the two-wire interface to initiate the wake up at the remote IC.