Memory controller with selective data transmission delay
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United States of America Patent
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Sep 17, 2013
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N/A
app pub date -
Jul 6, 2012
filing date -
Apr 24, 2001
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Abstract
A DRAM controller component generates a timing signal and transmits, to a DRAM, write data that requires a first time interval to propagate from the DRAM controller component to the DRAM and to be sampled by the DRAM on one or more edges of the timing signal, a clock signal that requires a second time interval to propagate from the DRAM controller component to the DRAM, and a write command, associated with the write data, to be sampled by the DRAM on one or more edges of the clock signal. The DRAM controller component includes series-coupled delay elements to generate respective incrementally delayed signals, and a multiplexer to select one of the delayed signals to time the transmission of the write data, such that transmission of the write data is delayed based on a difference between the first time interval and the second time interval.
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