When creating a symbol, you may want to specify the directionality of the pins by using the PINTYPE attributes listed in the PINTYPE Attributes table.
The syntax of the PINTYPE attribute follows.
PINTYPE=attribute
| IN | Input |
| OUT | Output |
| BI | Bidirectional |
| TRI | 3-state |
| OCL | Open collector |
| OEM | Open emitter |
The attribute can be one of the values listed in the left-hand column.