addresslines


if we have the no of address lines then what is the method to find no of data lines

Asked By: neelam
On: May 7, 2004 4:55:28 AM

Comments(8)



Hi, Sorry, I think there is a confusion between number of bits and number of lines here. Please disregard my previous reply. no of data lines = Total Memory in bits / ( number of address lines * word length in bits) This is assuming that you know the word length already. This can vary from processor to processor.
Saylee I also dont understand ur reply. Lets say we have a memory of 1k thus the number of address lines are 10. So by your formula the number of data lines are 1k/2^10=1? Please tell me if I am wrong but this does not seem right
lol what kinda question is that?
Really strange question.
Nobody encounters this type of problem (i dont think this is a valid problem ?????). In real hardware it is ruled out. In HDL, we can play around, first of all the simulator spits out warning if we connect testbench data signal to the design's port without knowing the width of the signal. Where you face such problem?, please show more lights on your question.
try to write different data patterns where the data bbus width should be maximum value of databus expected. Take all data bits zeros write to location address 0(say) and read back..then take all ones do the same. XOR the read patterns..non-zero value of bits gives number of data bits in bus.
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