What ports are used for handshaking signals?

I want to use Handshaking Digital I/O on an AT-MIO-16DE-10, and I want to know if there are extra digital I/O lines used for this, or if there are independant handshaking connections. I can't seem to find any documentation which warns that you can only get 7 bits out of a port if you use handshaking. Or you can only use ports 2,3,4 because port 0 is used for the handshaking signals.
Any hints would be appreciated.

Great, actually, I found this information, and would like to re state my question. Now that I know what ports I should be using (this is described in detail in the hardware manual for the E series), I would like to see some definite information about what I must do in my external device to make use of these signals.
I'm a little confused by some comments in the documentation that some of the facilities of Port C (on the 8255) are only avialable if I use register level commands (as if using the parallel port). If I use the DIG_Prt_Config and set to handshaking (input) on a port, then I assume I set up my external hardware as if Port C was in Mode 1(input), and then follow the timing described in the E Series manual.
It's just a shame that everything o
n the PC side is well described, but there are no application notes that I can find about building an external device that can use the handshaking signals.
If 'you' (anyone) can confirm what my assumptions, or point me in the right direction, I would appreciate it greatly.
Thank you.
Joshua

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