Devices and methods for controlling a slew rate of a signal line
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United States of America Patent
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Jul 24, 2007
Grant Date -
Nov 30, 2006
app pub date -
Aug 1, 2006
filing date -
May 17, 2004
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In one aspect of the invention, a method of reducing intersymbol interference on a signal line is disclosed. A state machine records previous bits that were transmitted over the line. If the bit on the line has been static for several clock cycles, the slew rate will be increased to facilitate correct reading of the bit for the next clock cycle. If the bit on the line has been dynamic for the previous bits, the slew rate will be a lower slew rate to avoid crosstalk between neighboring lines.
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