distrib/share/gns_templates/column_input.vhd

   1 --
   2 -- Template column_input
   3 -- Recognition rule
   4 --
   5 entity column_input is
   6     port    ( datain, wen, ckp      : in    bit;
   7               q, nq                 : inout bit;
   8               vdd,vss               : in    bit);
   9 end;
  10
  11 architecture precharge_included of column_input is
  12     component tn
  13         port    ( gate              : in    bit;
  14                   source            : inout bit;
  15                   drain             : inout bit;
  16                   bulk              : in    bit);
  17     end component;
  18
  19     component tp
  20         port    ( gate              : in    bit;
  21                   source            : inout bit;
  22                   drain             : inout bit;
  23                   bulk              : in    bit);
  24     end component;
  25
  26     signal nsig, nsig2, sig, PCsig  : bit;
  27
  28 begin
  29     inv_tn          : tn port map ( datain   ,vss    ,nsig   ,vss);
  30     inv_tp          : tp port map ( datain   ,vdd    ,nsig   ,vdd);
  31
  32     buf_tn1         : tn port map ( datain   ,vss    ,nsig2  ,vss);
  33     buf_tp1         : tp port map ( datain   ,vdd    ,nsig2  ,vdd);
  34     buf_tn2         : tn port map ( nsig2    ,vss    ,sig    ,vss);
  35     buf_tp2         : tp port map ( nsig2    ,vdd    ,sig    ,vdd);
  36
  37     precharge_tn1   : tn port map ( ckp      ,nq     ,vdd    ,vss);
  38     precharge_tn2   : tn port map ( ckp      ,q      ,vdd    ,vss);
  39     precharge_tn3   : tn port map ( ckp      ,nq     ,q      ,vss);
  40
  41     write_q         : tn port map ( wen      ,nq     ,nsig   ,vss);
  42     write_nq        : tn port map ( wen      ,q      ,sig    ,vss);
  43
  44 end;