User's Manual

P330 Data Sheet / User Guide 21
DRAFT
The Factory Mezzanine connector has a number of GPIO pins and grounds which the user is free to
use. However the remaining lines are NOT available for use. All of these lines are active and are
used by the factory to test the unit as it moves through production. This connector can be used by the
customer but it is critical that the reserved pins should never be connected to any signal, ground, or
power lines. This can result in extreme damage to the unit.
Fig. 4-6: J7 – User Serial 0.1” Header
Fig. 4-7: J11 Locking connector pinouts
Fig. 4-8: J10 Mezzanine connector pinouts
Pin Name Function
1 Digital_GND Digital ground
2 No Connection Reserved
3 No Connection Reserved
4 User_Serial_RX User serial receive
5 User_Serial_TX User serial transmit
6 No Connection Reserved
17 15 13 11 9 7 5 3 1
18 16 14 12 10 8 6 4 2
20 18 16 14 12 10 8 6 4 2
21 19 17 15 13 11 9 7 5 3 1