The Atom Pro has 2 I/O pins that are 3.3vdc not 5vdc. This is not usually a problem, but it can effect some external devices adversly. If you are having difficulty with a device connected to these pins try moving them to other I/O pins.
Just to clarify please, do you mean physical pins 6 and 7 of the part, or i/o ports P6 and P7 ?
It’s pins, as in 2 I/O pins, not ports. 
Looking at the schematic it’s the PS2 port that has a direct connect to pin 6 on the botboard. So “ports” I think Eddie was referring to the PS2 header port? Pin 7 is goes to the BS2 inverter as well as the servo headers which is tied to a 5v regulated bus.
So it looks like pin 6 is the only pin that’s affected.
My guess is that I must be missing something.
um, the BAP has 28 “pins” numbered 1 through 28. Some of those pins are labeled as “port”, i.e. P0, P1, P2. so my question was whether the 6 and 7 refered to “pins” 6 and 7 or “ports” 6 and 7.
I am inclined to believe from another post Acidtech made in a different thread that it is in fact port P6 and P7 not pin 6 and pin 7.
I did not really understand Jim’s answer but figured who ever it was that really needed it must have so I left it at that. Woot!
The Pro has 28 pins. My guess is Nathan just typo’ed and meant p, or pin, not port. I think there are only 2.5 8 bit “ports”… This has little bearing on the Bot Board with the exception that the Bot Board II now has the PS2 port on P12,13,14, and 15 to get it away from the 3.3vdc pins.
1 - sout
2 - sin
3 - atn
4 - vss
5 - p0
6 - p1
7 - p2
8 - p3
9 - p4
10 - p5
11 - p6 <----- 3.3vdc
12 - p7 <----- 3.3vdc
13 - analog1
14 - analog2
15 - analog3
16 - analog4
17 - p8
18 - p9
19 - p10
20 - p11
21 - p12
22 - p13
23 - p14
24 - p15
25 - vdd
26 - res
27 - vss
28 - vin