Method of accessing on-chip read only memory and computer system thereof
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United States of America Patent
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Sep 22, 2015
Grant Date -
Nov 20, 2014
app pub date -
May 19, 2013
filing date -
May 19, 2013
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Abstract
A method of accessing an on-chip read only memory (ROM) includes dividing a frequency of a system clock by a specific divisor, in order to generate a ROM clock; combining a specific number of adjacent addresses into a combined address, wherein the specific number is determined according to the specific divisor; inserting a first stall signal into a real output data, wherein a length of the first stall signal is determined in order to meet a timing requirement for accessing the on-chip ROM; generating an output data of the on-chip ROM according to the combined address, wherein a width of the output data is extended by a specific multiple which is determined according to the specific number; and generating a first delay corresponding to the length of the first stall signal in the address.
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