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// software and tools, and its AMPP partner logic functions, and any output
// files any of the foregoing (including device programming or simulation
// files), and any associated documentation or information are expressly subject
// to the terms and conditions of the Altera Program License Subscription
// Agreement, Altera MegaCore Function License Agreement, or other applicable
// license agreement, including, without limitation, that your use is for the
// sole purpose of programming logic devices manufactured by Altera and sold by
// Altera or its authorized distributors. Please refer to the applicable
// agreement for further details.
// $Id: //acds/rel/14.1/ip/merlin/altera_merlin_width_adapter/altera_merlin_width_adapter.sv#1 $
// $Revision: #1 $
// $Date: 2014/10/06 $
// $Author: swbranch $
// -----------------------------------------------------
// Merlin Width Adapter
// -----------------------------------------------------
`timescale 1 ns / 1 ns
module altera_merlin_width_adapter
#(
parameter IN_PKT_ADDR_L = 0,
parameter IN_PKT_ADDR_H = 31,
parameter IN_PKT_DATA_L = 32,
parameter IN_PKT_DATA_H = 63,
parameter IN_PKT_BYTEEN_L = 64,
parameter IN_PKT_BYTEEN_H = 67,
parameter IN_PKT_TRANS_COMPRESSED_READ = 72,
parameter IN_PKT_BYTE_CNT_L = 73,
parameter IN_PKT_BYTE_CNT_H = 77,
parameter IN_PKT_BURSTWRAP_L = 78,
parameter IN_PKT_BURSTWRAP_H = 82,
parameter IN_PKT_BURST_SIZE_L = 83,
parameter IN_PKT_BURST_SIZE_H = 85,
parameter IN_PKT_RESPONSE_STATUS_L = 86,
parameter IN_PKT_RESPONSE_STATUS_H = 87,
parameter IN_PKT_TRANS_EXCLUSIVE = 88,
parameter IN_PKT_BURST_TYPE_L = 89,
parameter IN_PKT_BURST_TYPE_H = 90,
parameter IN_PKT_ORI_BURST_SIZE_L = 91,
parameter IN_PKT_ORI_BURST_SIZE_H = 93,
parameter IN_ST_DATA_W = 110,
parameter OUT_PKT_ADDR_L = 0,
parameter OUT_PKT_ADDR_H = 31,
parameter OUT_PKT_DATA_L = 32,
parameter OUT_PKT_DATA_H = 47,
parameter OUT_PKT_BYTEEN_L = 48,
parameter OUT_PKT_BYTEEN_H = 49,
parameter OUT_PKT_TRANS_COMPRESSED_READ = 54,
parameter OUT_PKT_BYTE_CNT_L = 55,
parameter OUT_PKT_BYTE_CNT_H = 59,
parameter OUT_PKT_BURST_SIZE_L = 60,
parameter OUT_PKT_BURST_SIZE_H = 62,
parameter OUT_PKT_RESPONSE_STATUS_L = 63,
parameter OUT_PKT_RESPONSE_STATUS_H = 64,
parameter OUT_PKT_TRANS_EXCLUSIVE = 65,
parameter OUT_PKT_BURST_TYPE_L = 66,
parameter OUT_PKT_BURST_TYPE_H = 67,
parameter OUT_PKT_ORI_BURST_SIZE_L = 68,
parameter OUT_PKT_ORI_BURST_SIZE_H = 70,
parameter OUT_ST_DATA_W = 92,
parameter ST_CHANNEL_W = 32,
parameter OPTIMIZE_FOR_RSP = 0,
parameter PACKING = 1, // 1: default packing with avalon slave
parameter CONSTANT_BURST_SIZE = 1, // 1: This is to optimize for Avalon only system as Avalon always send full size transaction
parameter RESPONSE_PATH = 0, // 0: this is WA on command path response always merged, 1: this WA is on response path
// Address alignment can be turned off (an optimisation) if all connected
// masters only issue aligned addresses.
parameter ENABLE_ADDRESS_ALIGNMENT = 1
)
(
input clk,
input reset,
output reg in_ready,
input in_valid,
input [ST_CHANNEL_W-1:0] in_channel,
input [IN_ST_DATA_W-1:0] in_data,
input in_startofpacket,
input in_endofpacket,
input out_ready,
output reg out_valid,
output reg [ST_CHANNEL_W-1:0] out_channel,
output reg [OUT_ST_DATA_W-1:0] out_data,
output reg out_startofpacket,
output reg out_endofpacket,
input [2:0] in_command_size_data
);
// ------------------------------------------------------------
// Local Parameters
// ------------------------------------------------------------
localparam IN_NUMSYMBOLS = IN_PKT_BYTEEN_H - IN_PKT_BYTEEN_L + 1;