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diff --git a/source/sgmii_params.v b/source/sgmii_params.v
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+/*
+ *       sgmii_params.v
+ *
+ *   Copyright (C) 2018, 2019 Mind Chasers Inc.
+ *
+ *   Licensed under the Apache License, Version 2.0 (the "License");
+ *   you may not use this file except in compliance with the License.
+ *   You may obtain a copy of the License at
+ *
+ *       http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *   Unless required by applicable law or agreed to in writing, software
+ *   distributed under the License is distributed on an "AS IS" BASIS,
+ *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *   See the License for the specific language governing permissions and
+ *   limitations under the License.
+ *
+ *	function: SGMII Related Parameters
+ *
+ */
+
+
+/* SGMII Speed Bits [11:10]	*/
+
+localparam	SGMII_SPEED_10MBIT	= 2'b00,
+			SGMII_SPEED_100MBIT = 2'b01,
+			SGMII_SPEED_1GBIT = 2'b10,
+			SGMII_SPEED_RSVD = 2'b11,
+			SGMII_SPEED_AN = 2'b11;	
+
+
+/* 
+ *	Notes about K Codes:
+ *		Start of Packet: /S/, K27.7, 0xFB
+ *		End of Packet: /T/, K23.7, 0xF7
+ *
+ */
+localparam 	D2_2	=	8'h42,
+			D2_5	=	8'ha2,
+			D5_6	= 	8'hC5,
+			D10_2	=	8'h4a,
+			D16_2	=	8'h50,
+			D21_5	=	8'hb5,		// used in a Config Code Group
+			
+			/* Note that these are only K codes if the k bit is asserted */
+			K23_7	= 	8'hf7,		// 	/R/ Carrier Extend
+			K27_7	= 	8'hfb,		// 	/S/	Start_of_Packet
+			K28_5	=	8'hbc,
+			K29_7	=	8'hfd,		// 	/T/	End_of_Packet
+			K_ERROR =	8'hee;