How to configure the LUT?

[craftfox]

how to configure the LUTs as ROM?
how to configure the LUTs as shift register?
Can you give me some paper/example/code?

Are these tasks done by hand? or by the develop software?

 

[ddt694]

hello,
if you are using altera's fpga, you can only configure the luts as rom.
xilinx's fpga can be configured either rom or
shift register.
generally, those tasks can been done by your
synthesis tools for example synplify.