Initial commit of OpenSPARC T2 design and verification files.

[OpenSPARC-T2-DV] / design / sys / iop / niu / rtl / niu_txc_mac_ifc.v

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// OpenSPARC T2 Processor File: niu_txc_mac_ifc.v
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/*********************************************************************
 *
 *  niu_txc_mac_ifc.v
 *
 *  MACs to NIU TXC Grouped Interface
 *
 *  Orignal Author(s):   Rahoul Puri
 *  Modifier(s):
 *  Project(s):          Neptune
 *
 *  Copyright (c) 2005   Sun Microsystems, Inc.
 *
 *  All Rights Reserved.
 *
 *  This verilog model is the confidential and proprietary property of
 *  Sun Microsystems, Inc., and the possession or use of this model
 *  requires a written license from Sun Microsystems, Inc.
 *
 **********************************************************************/

`include "timescale.v"

module niu_txc_mac_ifc (
        SysClk,
        Reset_L,
`ifdef NEPTUNE
        Mac_Txc_Req3,
        Mac_Req3,
        Mac_Txc_Req2,
        Mac_Req2,
`endif
        Mac_Txc_Req1,
        Mac_Req1,
        Mac_Txc_Req0,
        Mac_Req0
       );

`include "txc_defines.h"

// Global Signals
input          SysClk;
input          Reset_L;

// Mac Port 0 Req Signal Flop-In->Flop-Out
input          Mac_Txc_Req0;

output         Mac_Req0;

reg            Mac_Req0;

// Mac Port 1 Req Signal Flop-In->Flop-Out
input          Mac_Txc_Req1;

output         Mac_Req1;

reg            Mac_Req1;

`ifdef NEPTUNE
// Mac Port 2 Req Signal Flop-In->Flop-Out
input          Mac_Txc_Req2;

output         Mac_Req2;

reg            Mac_Req2;

// Mac Port 3 Req Signal Flop-In->Flop-Out
input          Mac_Txc_Req3;

output         Mac_Req3;

reg            Mac_Req3;
`endif

/*--------------------------------------------------------------*/
// Wires & Registers
/*--------------------------------------------------------------*/

/*--------------------------------------------------------------*/
// Assigns
/*--------------------------------------------------------------*/

/*--------------------------------------------------------------*/
// Logic
/*--------------------------------------------------------------*/
always @(posedge SysClk)
  if (!Reset_L) Mac_Req0 <= #`SD 1'b0;
  else          Mac_Req0 <= #`SD Mac_Txc_Req0;

always @(posedge SysClk)
  if (!Reset_L) Mac_Req1 <= #`SD 1'b0;
  else          Mac_Req1 <= #`SD Mac_Txc_Req1;

`ifdef NEPTUNE
always @(posedge SysClk)
  if (!Reset_L) Mac_Req2 <= #`SD 1'b0;
  else          Mac_Req2 <= #`SD Mac_Txc_Req2;

always @(posedge SysClk)
  if (!Reset_L) Mac_Req3 <= #`SD 1'b0;
  else          Mac_Req3 <= #`SD Mac_Txc_Req3;
`endif


endmodule