A transmission line interface circuit comprising: multiple driver elements, including a p-type driver element coupled between a transmission line and a high voltage reference (VDD) for the transmission line interface circuit, configured to pull up a voltage level of the transmission line in response to a logic high value of an input signal to be driven on the transmission line , wherein the transmission line couples the transmission line interface circuit to a remote device ; and an n-type driver element coupled between the transmission line and a low voltage reference (VSS) for the transmission line interface circuit, configured to pull down the voltage level of the transmission line in response to a logic low value of the input signal; a voltage regulator coupled locally in the transmission line interface circuit between one of the p-type and n-type driver elements and a respective voltage reference (VDD, VSS) of the high voltage reference (VDD) and the low voltage reference (VSS) wherein the voltage regulator is configured to reduce a voltage swing of the transmission line interface circuit; and characterized in that the transmission line interface circuit further comprises a bypass path coupled between the respective voltage reference (VDD, VSS) and said one of the p-type and n-type driver elements , parallel to the voltage regulator , said bypass path configured to bypass the voltage regulator by connecting said one of the p-type and n-type driver elements to said respective voltage reference (VDD, VSS) when the transmission line interface circuit is receiving a signal on the transmission line from said remote device . multiple driver elements, including a p-type driver element coupled between a transmission line and a high voltage reference (VDD) for the transmission line interface circuit, configured to pull up a voltage level of the transmission line in response to a logic high value of an input signal to be driven on the transmission line , wherein the transmission line couples the transmission line interface circuit to a remote device ; and an n-type driver element coupled between the transmission line and a low voltage reference (VSS) for the transmission line interface circuit, configured to pull down the voltage level of the transmission line in response to a logic low value of the input signal; a p-type driver element coupled between a transmission line and a high voltage reference (VDD) for the transmission line interface circuit, configured to pull up a voltage level of the transmission line in response to a logic high value of an input signal to be driven on the transmission line , wherein the transmission line couples the transmission line interface circuit to a remote device ; and an n-type driver element coupled between the transmission line and a low voltage reference (VSS) for the transmission line interface circuit, configured to pull down the voltage level of the transmission line in response to a logic low value of the input signal; a voltage regulator coupled locally in the transmission line interface circuit between one of the p-type and n-type driver elements and a respective voltage reference (VDD, VSS) of the high voltage reference (VDD) and the low voltage reference (VSS) wherein the voltage regulator is configured to reduce a voltage swing of the transmission line interface circuit; and characterized in that the transmission line interface circuit further comprises a bypass path coupled between the respective voltage reference (VDD, VSS) and said one of the p-type and n-type driver elements , parallel to the voltage regulator , said bypass path configured to bypass the voltage regulator by connecting said one of the p-type and n-type driver elements to said respective voltage reference (VDD, VSS) when the transmission line interface circuit is receiving a signal on the transmission line from said remote device . <EOS>