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US 6,445,316 B1Granted
Universal impedance control for wide range loaded signals
AssigneeIntel Corporation
InventorsJen-Tai Hsu, Andrew M. Volk
Life of this patent
Estimating the term…
Abstract
In one embodiment of the present invention, a compensation driving circuit includes a code generator, an enable circuit, and a driver. The code generator generates a driver code from a compensation code according to a selector signal. The driver code corresponds to a buffer having an impedance. The enable circuit enables the driver code. The driver controls impedance of the buffer according to the driver code.
Claims30
An apparatus comprising:
- a scaler to generate a driver code from a compensation code according to a selector signal, the driver code corresponding to an impedance of a buffer;
- an enable circuit coupled to the scaler to enable the driver code;
- and
- a driver coupled to the enable circuit to control the impedance of the buffer according to the driver code.
1 more element
A method comprising:
- generating a driver code from a compensation code according to a selector signal, the driver code corresponding to an impedance of a buffer;
- enabling the driver code;
- and
- controlling the impedance of the buffer according to the driver code.
1 more element
A system comprising:
- a compensation controller to generate a compensation code;
- a buffer having an impedance matched to a loading;
- and
- a compensation driving circuit coupled to the compensation controller and the buffer to drive the buffer, the compensation driving comprising:
- a scaler to generate a driver code from the compensation code according to a selector signal, the driver code corresponding to the impedance,
- an enable circuit coupled to the scaler to enable the driver code, and
- a driver coupled to the enable circuit to control the impedance of the buffer according to the driver code.
4 more elements
Dependencies are inferred from the claim text.