What do these pin types mean?

[NextEngine]

Hello, I try to make some symbols of ICs using tragesym.
The template requires the definition of pin type, and it enumerates all the selection: in, out, io, oc, oe, pas, tp, tri, clk, pwr
Some of those are easy to understand, eg: "in" means the pin is used as input, "out" means the pin is used as output...
But others is difficult to understand, eg: oc, oe, pas, tp, tri...

Can anybody gives some articles or web pages which discuss the details of those pin types?

 

[Mattylad]

In the program, what does the help say about this?

Searching Google does not seem to show much about it - perhaps email the author of the program?

 

[NextEngine]

I found the definition from the official wiki page, so the problem is solved.

in Input
out Output
io Input/Output
oc Open collector
oe Open emitter
pas Passive
tp Totem pole
tri Tristate (high impedance)
clk Clock
pwr Power/Ground
Table 1: pintype values

refer to the pintype section of the following page
links: **broken link removed**