How to read and write using block ram?

Question

How to read and write using block ram in spartan 3?

I read in sim.pdf a manual of xilinix that each write needs one clock cycle and each read too as the BRAMs are synchronus. Are we supposed to make a finite state machine free each of the write and read operations of the ram ?

Answer 1

You can use it as dual-port RAM, so you can read an write in one cycle from different addresses. Have a look at xapp463.