/*
 *   rgmii_params.v
 *
 *	 Copyright 2025 Private Island Networks 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: RGMII Related Parameters
 *
 */
 
`ifdef INCLUDED
	
	// PHY Status Params (Table 4)
	localparam LINK_UP = 4'b0001,
	LINK_DOWN = 4'b0000;
	
	localparam CLOCK_SPEED_2_5 = 4'b0000,
	CLOCK_SPEED_25 = 4'b0010,
	CLOCK_SPEED_125 = 4'b0100,
	CLOCK_SPEED_RSVD = 4'b0110;
	
	localparam FULL_DUPLEX = 4'b1000,
	HALF_DUPLEX = 4'b0000;
	
	localparam D_IDLE = FULL_DUPLEX | CLOCK_SPEED_125 | LINK_UP;

	
	// RGMII CTL Bits
	localparam 	NORMAL_INTERFRAME = 2'b00,
	CARRIER_STATUS = 2'b01,
	ERROR_DATA_RX = 2'b10,
	NORMAL_DATA_RX = 2'b11;
	
	
`endif