aboutsummaryrefslogtreecommitdiffstats
path: root/usrp2/top/N2x0/capture_ddrlvds.v
diff options
context:
space:
mode:
authorMatt Ettus <matt@ettus.com>2011-06-07 16:48:30 -0700
committerMatt Ettus <matt@ettus.com>2011-06-07 16:48:30 -0700
commite4be5c906e8c1f0901ff7206b4b965a0abc7d8d2 (patch)
tree7c7d2f9697d9d873e3d6917da6a87e31cabbbc93 /usrp2/top/N2x0/capture_ddrlvds.v
parentf0a9f021120eae604321edb9a97a7a5d8716da47 (diff)
downloaduhd-e4be5c906e8c1f0901ff7206b4b965a0abc7d8d2.tar.gz
uhd-e4be5c906e8c1f0901ff7206b4b965a0abc7d8d2.tar.bz2
uhd-e4be5c906e8c1f0901ff7206b4b965a0abc7d8d2.zip
lots of renaming and moving around of toplevel directories to reflect product names
Diffstat (limited to 'usrp2/top/N2x0/capture_ddrlvds.v')
-rw-r--r--usrp2/top/N2x0/capture_ddrlvds.v38
1 files changed, 38 insertions, 0 deletions
diff --git a/usrp2/top/N2x0/capture_ddrlvds.v b/usrp2/top/N2x0/capture_ddrlvds.v
new file mode 100644
index 000000000..d263e0cfa
--- /dev/null
+++ b/usrp2/top/N2x0/capture_ddrlvds.v
@@ -0,0 +1,38 @@
+
+
+module capture_ddrlvds
+ #(parameter WIDTH=7)
+ (input clk,
+ input ssclk_p,
+ input ssclk_n,
+ input [WIDTH-1:0] in_p,
+ input [WIDTH-1:0] in_n,
+ output reg [(2*WIDTH)-1:0] out);
+
+ wire [WIDTH-1:0] ddr_dat;
+ wire ssclk;
+ wire [(2*WIDTH)-1:0] out_pre1;
+ reg [(2*WIDTH)-1:0] out_pre2;
+
+ IBUFGDS #(.IOSTANDARD("LVDS_33"), .DIFF_TERM("TRUE"))
+ clkbuf (.O(ssclk), .I(ssclk_p), .IB(ssclk_n));
+
+ genvar i;
+ generate
+ for(i = 0; i < WIDTH; i = i + 1)
+ begin : gen_lvds_pins
+ IBUFDS #(.IOSTANDARD("LVDS_33"),.DIFF_TERM("FALSE")) ibufds
+ (.O(ddr_dat[i]), .I(in_p[i]), .IB(in_n[i]) );
+ IDDR2 #(.DDR_ALIGNMENT("C1")) iddr2
+ (.Q0(out_pre1[2*i]), .Q1(out_pre1[(2*i)+1]), .C0(ssclk), .C1(~ssclk),
+ .CE(1'b1), .D(ddr_dat[i]), .R(1'b0), .S(1'b0));
+ end
+ endgenerate
+
+ always @(posedge clk)
+ out_pre2 <= out_pre1;
+
+ always @(posedge clk)
+ out <= out_pre2;
+
+endmodule // capture_ddrlvds