Dynamic flip-flop with scan-path macro-generator
#include <genlib.h>
void GENLIB_MACRO (DPGEN_DFFT, char *modelname, long flags, long N);
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.
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.
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
);