DE5-NET
User
Manual
70
June 20, 2018
3'h2 : //156.25Mhz
begin
new_hs_div = 4'b0100 ;
new_n1 = 8'b0000_1000 ;
fdco = 28'h004_E200 ;
end
3'h3 : //250Mhz
begin
new_hs_div = 4'b0101 ;
new_n1 = 8'b0000_0100 ;
fdco = 28'h004_E200 ;
end
3'h4 : //312.5Mhz
begin
new_hs_div = 4'b0100 ;
new_n1 = 8'b0000_0100 ;
fdco = 28'h004_E200 ;
end
3'h5 : //322.265625Mhz
begin
new_hs_div = 4'b0100 ;
new_n1 = 8'b0000_0100 ;
fdco = 28'h005_0910 ;
end
3'h6 : //644.53125Mhz
begin
new_hs_div = 4'b0100 ;
new_n1 = 8'b0000_0010 ;
fdco = 28'h005_0910 ;
end
default : //100Mhz
begin
new_hs_div = 4'b0101 ;
new_n1 = 8'b0000_1010 ;
fdco = 28'h004_E200 ;
end
endcase