From which memory-deep it is more meaningfully to use a RAM

[calzinide]

I am searching for the border when it is meaningfull to use a RAM or
RegisterFile instead of of a RTL register description. Has someone
empirical values when it is better to use RAM hardmacros to save area ?


Thanks calzi

 

[michaelst@gmail.com]

RAM hardmacros has less are, less power consumption, faster, etc.
Of course it depends on the configuration you are going to use. For
example, you wouldn't use FFs to create a 1KB of RAM. But you'd better
use regular FFs to create a 256 bytes RAM.
Check the numbers with your provider.