User`s guide

14
-
16 Di
g
ital Simulation
Usin
g
the DIGCLOCK S
y
mbol
The DIGCLOCK symbol is way to define a clock signal by
defining the symbol’s attributes.
To define a clock si
g
nal usin
g
DIGCLOCK
1
Place and connect a DIGCLOCK symbol.
2
Double-click the symbol instance.
3
Define the attributes as described here:
Usin
g
STIM1, STIM4, STIM8, and
STIM16 S
y
mbols
The STIMn parts have a single pin for connection. STIM1 is
used for driving a single net. STIM4, STIM8, and STIM16 drive
buses that are 4, 8, and 16 bits wide, respectively. The attributes
for all of these parts are the same as those shown in Table 14-2
.
For this
attribute...
Specify this...
DELAY time before the first transition of the
clock
ONTIME time in high state for each period
OFFTIME time in low state for each period
STARTVAL low state of clock (default:0)
OPPVAL high state of clock (default: 1)
To find out how to define a clock
si
g
nal usin
g
the Stimulus Editor
with interface ports or the
DIGSTIM symbol, see
Defining
clock transitions on page 14-8.