DPGEN_DFFT

Langue: en

Version: 30 July 2004 (fedora - 05/07/09)

Section: 3 (Bibliothèques de fonctions)

Sommaire

NAME

DPGEN_DFFT - Dynamic Flip-Flop with Scan-Path Macro-Generator

SYNOPSIS

#include <genlib.h>

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

DESCRIPTION

Generate a N bits dynamic flip-flop with scan-path named modelname. The two latches of this flip-flop are dynamic, i.e. the data is stored in a capacitor.

How it works :

•
scan when set to '1' enables the scan-path mode. Note that in scan-path mode, the wen signal is not effective.
•
scin : the input of the scan-path. This terminal is different from i0[0].

The scout is q[N-1] (in the following example this is q[31]).

•
wen when set to '1' enables the writing of the flip-flop.

TERMINAL NAMES

1.
scan : scan-path mode (input, 1 bit).
2.
scin : scan path in (input, 1 bit).
3.
wen : write enable (input, 1 bit).
4.
ck : clock signal (input, 1 bit).
5.
i0 : data input (N bits).
6.
q : output (N bits).
7.
vdd : power.
8.
vss : ground.

EXAMPLE

 GENLIB_MACRO(DPGEN_DFFT, "model_dfft_32"
                        , F_BEHAV|F_PLACE
                        , 32
                        );
 
 GENLIB_LOINS( "model_dfft_32"
             , "instance1_dfft_32"
             , "scan"
             , "scin"
             , "wen"
             , "ck"
             , "i0[31:0]"
             ,  "q[31:0]"  /* a[31] is "scout". */
             , "vdd", "vss", NULL
             );

SEE ALSO

GENLIB_MACRO(3), genlib(1)