US Patent 7391229 Techniques for serially transmitting on-chip termination control signals
Patent 7391229 was granted and assigned to Altera on June, 2008 by the United States Patent and Trademark Office.
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Techniques are provided for controlling on-chip termination (OCT) impedance using OCT calibration blocks that serially transmit OCT control signals to input/output (IO) blocks. The OCT control signals are serially transmitted through a shared conductor. An OCT calibration block can transmit OCT control signals to one or multiple IO blocks. The IO blocks can be programmed to select OCT control signals from one of the calibration blocks. Enable signals enable one or more of the IO blocks to receive the selected OCT control signals. The OCT control signals are used to control the on-chip termination impedance at one or more IO buffers.
US Patent 07391229 Techniques for serially transmitting on-chip termination control signals US Patent 7391229 Techniques for serially transmitting on-chip termination control signals
US Patent 07391229 Techniques for serially transmitting on-chip termination control signals
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