Patent ID: 8710899

Claim:
A method of controlling an integrated circuit to transition from a first control state to a second control state, the integrated circuit comprising a plurality of switches that control processing of a received signal, the integrated circuit being controlled to be in the first and second control states in response to receiving a control signal comprising a plurality of control bits, wherein each of the plurality of control bits controls a switch state for a corresponding switch of the plurality of switches, the first control state being represented by a first plurality of control bits and the second control state being represented by a second plurality of control bits at least partially different from the first plurality of control bits, the method comprising: controlling the integrated circuit to be in the first state by driving the plurality of switches with the first plurality of control bits; and controlling the integrated circuit to be in the second state by driving the plurality of switches with the second plurality of control bits at different times, such that at least a first one of the second plurality of control bits is controlled to arrive at a first one or more of the plurality of switches at a different time than that of at least a second one of the second plurality of control bits, wherein the time at which the at least a second one of the second plurality of control bits arrives at a second one or more of the plurality of switches is controlled to be different enough from the time at which the at least a first one of the second plurality of control bits arrives at a first one or more of the plurality of switches so as to avoid a latch-up problem when the integrated circuit changes states.