| Line 41... |
Line 41... |
//////////////////////////////////////////////////////////////////////
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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 1.38 2004/01/18 09:22:47 simons
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// Sensitivity list updated.
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//
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// Revision 1.37 2004/01/17 17:01:14 mohor
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// Revision 1.37 2004/01/17 17:01:14 mohor
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// Almost finished.
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// Almost finished.
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//
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//
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// Revision 1.36 2004/01/16 14:51:33 mohor
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// Revision 1.36 2004/01/16 14:51:33 mohor
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// cpu registers added.
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// cpu registers added.
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| Line 316... |
Line 319... |
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// data counter
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// data counter
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always @ (posedge tck_i or posedge wb_rst_i)
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always @ (posedge tck_i or posedge wb_rst_i)
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begin
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begin
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if (wb_rst_i)
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if (wb_rst_i)
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data_cnt <= #1 'h0;
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data_cnt <= #1 {`DATA_CNT{1'b0}};
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else if(shift_dr_i & (~data_cnt_end))
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else if(shift_dr_i & (~data_cnt_end))
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data_cnt <= #1 data_cnt + 1'b1;
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data_cnt <= #1 data_cnt + 1'b1;
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else if (update_dr_i)
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else if (update_dr_i)
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data_cnt <= #1 'h0;
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data_cnt <= #1 {`DATA_CNT{1'b0}};
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end
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end
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assign data_cnt_end = data_cnt == `CHAIN_DATA_LEN;
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assign data_cnt_end = data_cnt == `CHAIN_DATA_LEN;
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// crc counter
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// crc counter
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always @ (posedge tck_i or posedge wb_rst_i)
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always @ (posedge tck_i or posedge wb_rst_i)
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begin
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begin
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if (wb_rst_i)
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if (wb_rst_i)
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crc_cnt <= #1 'h0;
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crc_cnt <= #1 {`CRC_CNT{1'b0}};
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else if(shift_dr_i & data_cnt_end & (~crc_cnt_end) & chain_select)
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else if(shift_dr_i & data_cnt_end & (~crc_cnt_end) & chain_select)
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crc_cnt <= #1 crc_cnt + 1'b1;
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crc_cnt <= #1 crc_cnt + 1'b1;
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else if (update_dr_i)
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else if (update_dr_i)
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crc_cnt <= #1 'h0;
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crc_cnt <= #1 {`CRC_CNT{1'b0}};
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end
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end
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assign crc_cnt_end = crc_cnt == `CRC_LEN;
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assign crc_cnt_end = crc_cnt == `CRC_LEN;
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| Line 353... |
Line 356... |
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// status counter
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// status counter
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always @ (posedge tck_i or posedge wb_rst_i)
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always @ (posedge tck_i or posedge wb_rst_i)
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begin
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begin
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if (wb_rst_i)
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if (wb_rst_i)
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status_cnt <= #1 'h0;
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status_cnt <= #1 {`STATUS_CNT{1'b0}};
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else if(shift_dr_i & crc_cnt_end & (~status_cnt_end))
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else if(shift_dr_i & crc_cnt_end & (~status_cnt_end))
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status_cnt <= #1 status_cnt + 1'b1;
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status_cnt <= #1 status_cnt + 1'b1;
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else if (update_dr_i)
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else if (update_dr_i)
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status_cnt <= #1 'h0;
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status_cnt <= #1 {`STATUS_CNT{1'b0}};
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end
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end
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assign status_cnt_end = status_cnt == `STATUS_LEN;
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assign status_cnt_end = status_cnt == `STATUS_LEN;
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