NAME

       DPGEN_RF1D, DPGEN_RF1DR0 - Register File with Decoder Macro-Generator

SYNOPSIS

       #include  <genlib.h>

       void GENLIB_MACRO (DPGEN_RF1D, char *modelname, long flags, long N);

       void GENLIB_MACRO (DPGEN_RF1DR0, char *modelname, long flags, long N);

DESCRIPTION

       Generate  a  register  file of regNumber words of N bits with decoder named modelname. The
       DPGEN_RF1DR0 variant differs from the DPGEN_RF1D in that the register of address  zero  is
       stuck  to  zero.  You  can write into it, it will not change the value. When read, it will
       always return zero.

       How it works :

       • datain0 and datain1 : the two write busses. Only one  is  used  to  actually  write  the
         register word, it is selected by the sel signal.

       • sel  : when set to '0' the datain0 is used to write the register word, otherwise it will
         be datain1.

       • adr, adw  :  the  width  (Y)  of  those  signals  is  computed  from  regNumber  :  Y  =
         log2(regNumber).

       • wen and ren : write enable and read enable, allows reading and writing when sets to '1'.

   TERMINAL NAMES
       1. ck : clock signal (input, 1 bit).

       2. sel : select the write bus (input, 1 bit).

       3. wen : write enable (input, 1 bit).

       4. ren : read enable (input, 1 bit).

       5. adr : the read address (input, Y bits).

       6. adw : the write address (input, Y bits).

       7. datain0 :  first write bus (input, N bits).

       8. datain1 :  second write bus (input, N bits).

       9. dataout : read bus (output, N bits).

       10.
          vdd : power.

       11.
          vss : ground.

EXAMPLE

       GENLIB_MACRO(DPGEN_RF1D, "model_rf1dx8_32"
                              , F_BEHAV|F_PLACE
                              , 32  /* Words size.      */
                              , 8   /* Number of words. */
                              );

       GENLIB_LOINS( "model_rf1dx8_32"
                   , "instance1_rf1d_32"
                   , "ck"
                   , "sel"
                   , "wen"
                   , "ren"
                   , "adr[2:0]"
                   , "adw[2:0]"
                   , "datain0[31:0]"
                   , "datain1[31:0]"
                   , "dataout[31:0]"
                   , "vdd", "vss", NULL
                   );

SEE ALSO

       GENLIB_MACRO(3), genlib(1)