| 摘要 |
A termination system includes a termination element, a reference resistance system, and a feedback control system. The termination element includes one or more transfer gates. The transfer gates are comprised of one or more transistors that provide some resistance value that is dependent upon which transistors are in an on state or an off state. The termination element is connected to a driver system and an electrical signal line. The reference resistance system is used to provide a reference resistance value that is substantially equivalent to a line characteristic impedance of the electrical signal line. The feedback control system is connected to the reference resistance system and the termination element. The feedback control system uses the reference resistance system to generate an adjustment signal for the termination element so that the resistance value of the termination element substantially matches the line characteristic impedance of the electrical signal line. The adjustment signal places the transistors of the transfer gate in an on state or an off state so that the resistance value of the termination element is accordingly matched to the line characteristic impedance. In addition, a method for adjusting a resistance value of a terminator element is described. A method for generating an adjustment signal is also described.
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