Specifications

Simulation Primitive Types 235
Simulation Primitive Types
 For more information on the simulation primitive types, see “Primitive
Devices” on page 95.
NOTE: The following table lists the pin functions and orders for all simulation
primitive device types. In some cases, a number of pins can be optionally
omitted, so the table gives rules rather than enumerating all possible
combinations.
IMPORTANT: In order for a primitive device to simulate correctly:
1) The device pin order must follow that given in this table. So when creating the
symbol using the DevEditor tool, the pins displayed in the pin list must be in the
order described here.
2) The pin type (input/output/bidirectional) must be set appropriately for each pin.
Primitive Type Limitations Pin Names and
Types
Possible Pin Orders
NOT Exactly 1 input
and 1 output
IN—in
OUT—out
1) IN OUT
AND, NAND,
OR, NOR, XOR,
XNOR
N inputs:
1
IN
0
..IN
N-1
—in
OUT—out
1) IN
0
..IN
N-1
OUT
X-Gate Exactly 2 ports
and 1 enable
X1 X2—bidir
EN—in
1) X1 EN X2
Buffer N data inputs
N data outputs
1
IN
0
..IN
N-1
—in
OUT
0
..OUT
N-1
—out
EN—in
1) IN
0
..IN
N-1
OUT
0
..OUT
N-1
EN
2) IN
0
..IN
N-1
OUT
0
..OUT
N-1
Resistor Exactly 2 pins X1 X2—bidir 1) X1 X2
LW Reference.bk Page 235 Monday, December 15, 2003 5:59 PM