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URL https://opencores.org/ocsvn/ddr3_synthesizable_bfm/ddr3_synthesizable_bfm/trunk

Subversion Repositories ddr3_synthesizable_bfm

[/] [ddr3_synthesizable_bfm/] [trunk/] [rtl/] [ddr3_simple4.v] - Diff between revs 4 and 6

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Rev 4 Rev 6
Line 502... Line 502...
                                                                                3'b110:$display("%m\tWR = 12^2(144 cycles)");
                                                                                3'b110:$display("%m\tWR = 12^2(144 cycles)");
                                                                                3'b111:$display("%m\tWR = 14^2(196 cycles)");
                                                                                3'b111:$display("%m\tWR = 14^2(196 cycles)");
                                                                        endcase
                                                                        endcase
                                                                end//end MR0
                                                                end//end MR0
                                                                2'b01:begin //MR1
                                                                2'b01:begin //MR1
 
                                                                        case(a[0]) //DLL Enable
 
                                                                                1'b0:$display("%m\tDLL = Enabled");
 
                                                                                1'b1:$display("%m\tDLL = Disabled");
 
                                                                        endcase
 
                                                                        case({a[5],a[1]}) //Output driver impedence
 
                                                                                2'b00:$display("%m\tOutput Driver = RQZ/6(RQZ=240 Ohm)");
 
                                                                                2'b01:$display("%m\tOutput Driver = RQZ/7(RQZ=240 Ohm)");
 
                                                                                2'b10:$display("%m\tOutput Driver = Reserved");
 
                                                                                2'b11:$display("%m\tOutput Driver = Reserved");
 
                                                                        endcase
 
                                                                        case({a[9],a[6],a[2]})
 
                                                                                3'b000:$display("%m\tRTT Nom = RTT Nom Disabled");
 
                                                                                3'b001:$display("%m\tRTT Nom = RZQ/4(RZQ=240 Ohm)");
 
                                                                                3'b010:$display("%m\tRTT Nom = RZQ/2(RZQ=240 Ohm)");
 
                                                                                3'b011:$display("%m\tRTT Nom = RZQ/6(RZQ=240 Ohm)");
 
                                                                                3'b100:$display("%m\tRTT Nom = RZQ/12(RZQ=240 Ohm)");
 
                                                                                3'b101:$display("%m\tRTT Nom = RZQ/8(RZQ=240 Ohm)");
 
                                                                                3'b110:$display("%m\tRTT Nom = Reserved");
 
                                                                                3'b111:$display("%m\tRTT Nom = Reserved");
 
                                                                        endcase
 
                                                                        case(a[4:3]) //Additive Latency
 
                                                                                2'b00:$display("%m\tAL = 0(Disabled)");
 
                                                                                2'b01:$display("%m\tAL = CL-1");
 
                                                                                2'b10:$display("%m\tAL = CL-2");
 
                                                                                2'b11:$display("%m\tAL = Reserved");
 
                                                                        endcase
                                                                end//end MR1
                                                                end//end MR1
                                                                2'b10:begin //MR2
                                                                2'b10:begin //MR2
 
                                                                        case(a[5:3])
 
                                                                                3'b000:$display("%m\tCWL = 5");
 
                                                                                3'b001:$display("%m\tCWL = 6");
 
                                                                                3'b010:$display("%m\tCWL = 7");
 
                                                                                3'b011:$display("%m\tCWL = 8");
 
                                                                                3'b100:$display("%m\tCWL = 9");
 
                                                                                3'b101:$display("%m\tCWL = 10");
 
                                                                                3'b110:$display("%m\tCWL = 11");
 
                                                                                3'b111:$display("%m\tCWL = 12");
 
                                                                        endcase
 
                                                                        case(a[10:9])
 
                                                                        2'b00:$display("%m\tDynamic ODT Off");
 
                                                                        2'b00:$display("%m\tRTT WR = RZQ/4(RQZ=240 Ohm)");
 
                                                                        2'b00:$display("%m\tRTT WR = RZQ/2(RQZ=240 Ohm)");
 
                                                                        2'b00:$display("%m\tRTT WR = Reserved");
 
                                                                        endcase
                                                                end//end MR2
                                                                end//end MR2
                                                                2'b11:begin //MR3
                                                                2'b11:begin //MR3
                                                                end//end MR3
                                                                end//end MR3
                                                        endcase //end which MRS
                                                        endcase //end which MRS
 
 

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