A redriver, comprising: a channel; a channel transmitter circuit; a signal detector for the channel; and control logic comprising a plurality of logic gates and a controller, the plurality of logic gates configured to generate control signals: in a first mode comprising a converged input/output, "CIO", mode, to activate the channel transmitter circuit within a time window that satisfies operation in the CIO mode by controlling application of a first bias current for the channel transmitter circuit based on a signal detected by the signal detector; to disable application of the first bias current to the channel trasnmitter circuit after the time window; and during a second mode different from the CIO mode, to activate the channel transmitter circuit within a time window that satisfies operation in the second mode by controlling application of a second bias current for the channel transmitter circuit based on a signal detected by the signal detector, wherein the first bias current is the sum of the second bias current and a boost current for charging a parasitic capacitor associated with the channel transmitter circuit at a greater rate in the first mode than in the second mode, for powering up the channel in a shorter period of time in the first mode than in the second mode. a channel; a channel transmitter circuit; a signal detector for the channel; and control logic comprising a plurality of logic gates and a controller, the plurality of logic gates configured to generate control signals: in a first mode comprising a converged input/output, "CIO", mode, to activate the channel transmitter circuit within a time window that satisfies operation in the CIO mode by controlling application of a first bias current for the channel transmitter circuit based on a signal detected by the signal detector; to disable application of the first bias current to the channel trasnmitter circuit after the time window; and during a second mode different from the CIO mode, to activate the channel transmitter circuit within a time window that satisfies operation in the second mode by controlling application of a second bias current for the channel transmitter circuit based on a signal detected by the signal detector, wherein the first bias current is the sum of the second bias current and a boost current for charging a parasitic capacitor associated with the channel transmitter circuit at a greater rate in the first mode than in the second mode, for powering up the channel in a shorter period of time in the first mode than in the second mode. in a first mode comprising a converged input/output, "CIO", mode, to activate the channel transmitter circuit within a time window that satisfies operation in the CIO mode by controlling application of a first bias current for the channel transmitter circuit based on a signal detected by the signal detector; to disable application of the first bias current to the channel trasnmitter circuit after the time window; and during a second mode different from the CIO mode, to activate the channel transmitter circuit within a time window that satisfies operation in the second mode by controlling application of a second bias current for the channel transmitter circuit based on a signal detected by the signal detector, wherein the first bias current is the sum of the second bias current and a boost current for charging a parasitic capacitor associated with the channel transmitter circuit at a greater rate in the first mode than in the second mode, for powering up the channel in a shorter period of time in the first mode than in the second mode.