Method and apparatus for independent output driver calibration
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Dec 25, 2001
Grant Date -
N/A
app pub date -
Jun 23, 2000
filing date -
Jun 23, 2000
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An apparatus and method for independently adjusting or calibrating the characteristics of multiple drivers for output buffer circuits without significantly increasing the associated necessary circuitry is disclosed. A central control logic circuit initiates the calibration process of the drivers. A serial communication link is provided between the control logic and each of the output drivers. The serial link reduces the number of lines that are required to communicate between the central control logic and the multiple output drivers. The output drivers can be calibrated one at a time, and a handoff is made from one driver to the next to start the calibration of the subsequent driver.
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