| Line 39... |
Line 39... |
//////////////////////////////////////////////////////////////////////
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//////////////////////////////////////////////////////////////////////
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//
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//
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// CVS Revision History
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// CVS Revision History
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//
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//
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// $Log: not supported by cvs2svn $
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// $Log: not supported by cvs2svn $
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// Revision 1.26 2002/07/10 13:12:38 mohor
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// Previous bug wasn't succesfully removed. Now fixed.
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//
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// Revision 1.25 2002/07/09 23:53:24 mohor
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// Revision 1.25 2002/07/09 23:53:24 mohor
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// Master state machine had a bug when switching from master write to
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// Master state machine had a bug when switching from master write to
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// master read.
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// master read.
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//
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//
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// Revision 1.24 2002/07/09 20:44:41 mohor
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// Revision 1.24 2002/07/09 20:44:41 mohor
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| Line 1518... |
Line 1521... |
else
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else
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if(RxEn_q)
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if(RxEn_q)
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RxPointerRead <=#Tp 1'b0;
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RxPointerRead <=#Tp 1'b0;
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end
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end
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reg BlockingIncrementRxPointer;
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//Latching Rx buffer pointer from buffer descriptor;
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//Latching Rx buffer pointer from buffer descriptor;
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always @ (posedge WB_CLK_I or posedge Reset)
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always @ (posedge WB_CLK_I or posedge Reset)
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begin
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begin
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if(Reset)
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if(Reset)
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RxPointer <=#Tp 32'h0;
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RxPointer <=#Tp 32'h0;
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else
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else
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if(RxEn & RxEn_q & RxPointerRead)
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if(RxEn & RxEn_q & RxPointerRead)
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RxPointer <=#Tp {ram_do[31:2], 2'h0};
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RxPointer <=#Tp {ram_do[31:2], 2'h0};
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else
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else
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if(MasterWbRX & ~BlockingIncrementRxPointer)
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if(MasterWbRX & m_wb_ack_i)
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RxPointer <=#Tp RxPointer + 3'h4; // Word access (always word access. m_wb_sel_o are used for selecting bytes)
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RxPointer <=#Tp RxPointer + 3'h4; // Word access (always word access. m_wb_sel_o are used for selecting bytes)
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end
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end
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//Latching last addresses from buffer descriptor (used as byte-half-word indicator);
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//Latching last addresses from buffer descriptor (used as byte-half-word indicator);
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| Line 1560... |
Line 1563... |
end
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end
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always @ (posedge WB_CLK_I or posedge Reset)
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always @ (posedge WB_CLK_I or posedge Reset)
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begin
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begin
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if(Reset)
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BlockingIncrementRxPointer <=#Tp 0;
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else
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if(MasterAccessFinished)
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BlockingIncrementRxPointer <=#Tp 0;
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else
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if(MasterWbRX)
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BlockingIncrementRxPointer <=#Tp 1'b1;
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end
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always @ (posedge WB_CLK_I or posedge Reset)
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begin
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if(Reset)
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if(Reset)
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RxEn_needed <=#Tp 1'b0;
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RxEn_needed <=#Tp 1'b0;
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else
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else
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if(~RxBDReady & r_RxEn & WbEn & ~WbEn_q)
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if(~RxBDReady & r_RxEn & WbEn & ~WbEn_q)
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RxEn_needed <=#Tp 1'b1;
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RxEn_needed <=#Tp 1'b1;
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