Once the cover is removed, you will be facing the back of the circuit board, like this:
On the circuit board as pictured above, there are some key items:
Location | Description |
---|---|
J1 | JTAG port |
J7 | Analog input pins |
J8 | Uncommitted I/O pins |
J34 | Programming port |
Y1 | optional crystal |
U3 | Optional serial to RS232 tranceiver |