Memory map in SOPC builder

[Altera_Forum]

Hi there, 

 If I have two custom components in SOPC builder with memory mapped as the following:  component 1: base=0x00000020; end=0x0000003f. component 2: base=0x00000040; end=0x0000005f.  In these two components, should I decode all of the 32bit address bus or should I just decode the lower 7 bits? :confused:   Thanks, Hua

[Altera_Forum]

Any questions about this question?:rolleyes:

[Altera_Forum]

you should only have to give your custom component a 7 bit bus for the address. 

 take a look at page 4 which shows that SOPC Builder will do a lot of the work for you in the fabric:  http://www.altera.com/literature/hb/qts/qts_qii54003.pdf

[Altera_Forum]

Thank you for the reply!