pstar
Newbie level 5
spartan 3 luts:
Hi all,
For Spartan-3 We have CLB and inside each CLB there is LUTs. I know all component inside each CLB but in each CLB there is 8 4-Bit Input LUTs.
These LUTs called G-LUT and F-LUT. I want to know what is inside each LUT?
because when I have different design like A.B or (( A.B.C.D) + (A+B+C+D)) still same number of gates use for both design!
So I like to know what is exactly inside each LUT? I could not find any informtion in Spartan-3 datasheets about inside these LUTs.
Are these LUTs (Look-Up Table) are simply a block of memory containing a complete table of all possible input combinations or something else?
If anyone knows about archtucture of these LUTs please let me know.
Thank you
Pouya!
Hi all,
For Spartan-3 We have CLB and inside each CLB there is LUTs. I know all component inside each CLB but in each CLB there is 8 4-Bit Input LUTs.
These LUTs called G-LUT and F-LUT. I want to know what is inside each LUT?
because when I have different design like A.B or (( A.B.C.D) + (A+B+C+D)) still same number of gates use for both design!
So I like to know what is exactly inside each LUT? I could not find any informtion in Spartan-3 datasheets about inside these LUTs.
Are these LUTs (Look-Up Table) are simply a block of memory containing a complete table of all possible input combinations or something else?
If anyone knows about archtucture of these LUTs please let me know.
Thank you
Pouya!