Termination voltage circuits

A driver circuit comprising:

• a calibration circuit;
• a termination voltage circuit coupled to the calibration circuit;
• a termination element coupled to the termination voltage circuit;
• a current source switch coupled to the termination element via a node;
• a current source coupled to the current source switch, wherein the current source switch and the termination voltage circuit are controlled via a control signal, wherein based on the control signal:
• the calibration circuit is to provide a termination voltage source to the termination voltage circuit;
• and
• the termination voltage circuit is to generate a termination voltage to match a node voltage of the node using the termination voltage source;
• a load coupled to the termination element and the current source switch via the node;
• and
• a load voltage source coupled to the load, wherein the node voltage is generated based on the load and the load voltage source.

A computer-readable storage medium comprising instructions that when executed cause a controller of an electronic device to:

• during a first time period:
• assert a control signal with a first value to a termination voltage circuit of a driver circuit to generate a first termination voltage;
• assert the control signal with the first value to a current source switch of the driver circuit to generate a first node voltage of a node, wherein the first termination voltage matches the first node voltage, wherein the termination voltage circuit is coupled to a termination element, wherein the termination element is coupled to the current source switch via the node, wherein a load is coupled to the termination element and the current source switch via the node, and wherein a load voltage source is coupled to the load;
• during a second time period:
• assert the control signal with a second value to the termination voltage circuit to generate a second termination voltage higher than the first termination voltage;
• and
• assert the control signal with the second value to the current source switch to generate a second node voltage of the node, wherein the second termination voltage matches the second node voltage.