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DPGEN_RF1D(3)		Alliance - genlib User's Manual		 DPGEN_RF1D(3)

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 actu-
	 ally 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 writ-
	 ing 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)

ASIM/LIP6			 30 July 2004			 DPGEN_RF1D(3)

Want to link to this manual page? Use this URL:
<https://man.freebsd.org/cgi/man.cgi?query=DPGEN_RF1D&sektion=3&manpath=FreeBSD+Ports+15.0>

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