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<title>2.3 stemi range checks</title>
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<a name="1206173"> </a><font color="#003366" face="Verdana, Arial, Helvetica, sans-serif">2.3 stemi range checks</font>
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<a name="1206174"> </a><font size=2 face="Verdana, Arial, Helvetica, sans-serif">In order to prevent the user from creating a device which is unworkable and unrealistic, <strong>stemi</strong> carries out range checks on parameters affected by user inputs. This may result from a parameter input or register/bank changes. For each entry several checks are made, examples for each bank type are:</font>
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<a name="1206175"> </a><font color="#003366" face="Verdana, Arial, Helvetica, sans-serif">DRAM</font>
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<a name="1206176"> </a><font size=2 face=Courier><strong>DataDriveDelay < CAStime<br>CASe1Time < CAStime<br>CASe2Time < CAStime - CASe1Time<br></strong></font>
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<a name="1206177"> </a><font color="#003366" face="Verdana, Arial, Helvetica, sans-serif">SDRAM</font>
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<a name="1206178"> </a><font size=2 face=Courier><strong>CasLatency == LatencyMode<br></strong></font>
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<a name="1206179"> </a><font size=2 face="Verdana, Arial, Helvetica, sans-serif">To ensure this condition is met, a change of either parameter causes the same change in the other.</font>
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<a name="1206180"> </a><font color="#003366" face="Verdana, Arial, Helvetica, sans-serif">Peripheral</font>
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<a name="1206181"> </a><font size=2 face=Courier><strong>DataDriveDelay < AccessTimeWrite<br>CSe2TimeRead < AccessTimeRead - CSe1TimeRead<br>OEe2TimeRead < AccessTimeRead - OEe1TimeRead<br>BEe2TimeRead < AccessTimeRead - BEe1TimeRead<br>OEe2TimeWrite < AccessTimeRead - OEe1TimeWrite<br>BEe2TimeWrite < AccessTimeRead - BEe1TimeWrite<br><br></strong></font>
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<a name="1206182"> </a><font size=2 face="Verdana, Arial, Helvetica, sans-serif">If these conditions are not met, <strong>stemi</strong> produces an error describing the problem parameter and ignores the faulty input.</font>
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