Access controller that efficiently accesses synchronous semiconductor memory device
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United States of America Patent
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Sep 20, 2005
Grant Date -
Dec 11, 2003
app pub date -
Dec 12, 2002
filing date -
Jun 7, 2002
priority date (Note) -
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Abstract
An SDRAM access control section activates a row of an SDRAM when a request is made to access the row in the continuous access mode. The SDRAM access control section outputs a read command or a write command to the SDRAM 300 when a request is made to access the SDRAM 300, without deactivating the accessed row, until a detection signal that detects the last column is asserted. The SDRAM access control section deactivates the accessed row when the detection signal is asserted.
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