1 files changed, 14 insertions, 0 deletions
diff --git a/manual/PRESENTATION_ExOth/scrambler.v b/manual/PRESENTATION_ExOth/scrambler.v
new file mode 100644
index 00000000..d4c1fa2b
--- /dev/null
+++ b/manual/PRESENTATION_ExOth/scrambler.v
@@ -0,0 +1,14 @@
+module scrambler(
+        input clk, rst, in_bit,
+        output reg out_bit
+);
+    reg [31:0] xs;
+    always @(posedge clk) begin
+    	if (rst)
+	    xs = 1;
+        xs = xs ^ (xs << 13);
+        xs = xs ^ (xs >> 17);
+        xs = xs ^ (xs << 5);
+        out_bit <= in_bit ^ xs[0];
+    end
+endmodule