Inside of a cell definition, exports are declared with the "E" line. All exports are sorted by their name. The syntax is:

E<name> | <TD> | <originalNode> | <originalPort> | <flags> | [ | <variable> ]*
<name> | the name of the export.
<TD> | the text descriptor for writing the port (described later).
<originalNode> | the name of the node instance in this cell that the export resides on.
<originalPort> | the name of the port on the exported node instance (may be blank if there are no choices).
<flags> | flags for the export (see below).
<variable> | a list of variables on the export (see Section 10-4-1).

The <flags> field has the format:

<characteristics> [ /A ] [ /B ]

<characteristics> the nature of the export. Choose from the following:

"U" unknown.
"I" input.
"O" output.
"B" bi-directional.
"P" power.
"G" ground.
"C" clock.
"C1" clock phase 1.
"C2" clock phase 2.
"C3" clock phase 3.
"C4" clock phase 4.
"C5" clock phase 5.
"C6" clock phase 6.
"RO" reference output.
"RI" reference input.
"RB" reference base.
/A indicates that the export is always drawn
/B indicates that the export is body-only (no equivalent on the icon)

Example:

`Es[18]||conn@14|a|D5G2;|I/B`

Exports port "a" of node instance "conn@14"” and calls it "s[18]". The text of the export is attached at the center of the port ("D5") and is 2 units high ("G2;"). It is of type input, and only appears in the contents (not the icon).