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/*
* 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
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