Icc is given on page 3 in the DC Electrical Characteristics Table and depends upon operating frequency.
Iccaux is apparently not given, but it should be much lower than Icc since it's just for the JTAG circuitry.
Iccio is the output current which depends upon the output resistance and capacitance load, and the output data frequency. Capacitive power required for each output pin equals fCV² where f is the output frequency, C is the output load capacitance, and V is the output voltage level.
I would think 100mA total supply current would be more than sufficient for reasonable value of the loads at the outputs.