Ubuntu Manpages

DPGEN_FIFO

FIFO Macro-Generator

#include <genlib.h>

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

Generate a FIFO of regNumber words of N bits named modelname.

How it works :

  • datain0 and datain1 : the two write busses. Only one is used to actually write the FIFO, 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.
  • r, rok : set r when a word is requested, rok tells that a word has effectively been popped (rok == not empty).
  • w, wok : set w when a word is pushed, wok tells that the word has effectively been pushed (wok == not full).

1.
ck : clock signal (input, 1 bit).
2.
reset : reset signal (input, 1 bit).
3.
r : read requested (input, 1 bits).
4.
w : write requested (input, 1 bits).
5.
rok : read acknowledge (output, 1 bits).
6.
wok : write acknowledge (output, 1 bits).
7.
sel : select the write bus (input, 1 bit).
8.
datain0 : first write bus (input, N bits).
9.
datain1 : second write bus (input, N bits).
10.
dataout : read bus (output, N bits).
11.
vdd : power.
12.
vss : ground.

GENLIB_MACRO(DPGEN_RF1, "model_fifox8_32"
                      , F_BEHAV|F_PLACE
                      , 32  /* Words size.      */
                      , 8   /* Number of words. */
                      );
GENLIB_LOINS( "model_fifox8_32"
            , "instance1_fifo1_32"
            , "ck"
            , "r"
            , "w"
            , "rok"
            , "wok"
            , "sel"
            , "datain0[31:0]"
            , "datain1[31:0]"
            , "dataout[31:0]"
            , "vdd", "vss", NULL
            );

GENLIB_MACRO(3), genlib(1)