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[/] [dma_ahb/] [trunk/] [src/] [dma_ahb64/] [dma_ahb64_core0_ch_outs.v] - Rev 2

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//---------------------------------------------------------
//-- File generated by RobustVerilog parser
//-- Version: 1.0
//-- Invoked Fri Mar 25 23:33:01 2011
//--
//-- Source file: dma_ch_outs.v
//---------------------------------------------------------
 
 
 
module dma_ahb64_core0_ch_outs(clk,reset,cmd,clr,outs_max,outs,outs_empty,stall,timeout);
 
   input                    clk;
   input             reset;
 
   input             cmd;
   input             clr;
   input [`OUT_BITS-1:0]    outs_max;
   output [`OUT_BITS-1:0]   outs;
   output             outs_empty;
   output             stall;
   output             timeout;
 
 
   reg [`OUT_BITS-1:0]         outs;
   wire [`OUT_BITS-1:0]     outs_pre;
   reg                 stall;
   reg [`TIMEOUT_BITS-1:0]  counter;
 
 
 
   assign             outs_empty = outs == 'd0;
 
   assign             outs_pre = outs + cmd - clr;
 
   always @(posedge clk or posedge reset)
     if (reset)
       outs <= #1 'd0;
     else if (cmd | clr)
       outs <= #1 outs_pre;
 
 
   always @(posedge clk or posedge reset)
     if (reset)
       stall <= #1 1'b0;
     else if (|outs_max)
       stall <= #1 outs >= outs_max;
 
 
 
   assign             timeout = (counter == 'd0);
 
   always @(posedge clk or posedge reset)
     if (reset)
       counter <= #1 {`TIMEOUT_BITS{1'b1}};
     else if (clr)
       counter <= #1 {`TIMEOUT_BITS{1'b1}};
     else if (|outs)
       counter <= #1 counter - 1'b1;
 
 
endmodule
 
 
 
 
 
 
 
 
 
 
 
 

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