* Each of these transitions takes 2 cycles for the XOR and OUT to
* set the state, which leaves three cycles for our work.
+ * when programming with buspirate (wire/clip):
+ * White/white Reset 1 v 8 Vcc Red
+ * Blue/Blue Xtal1 2 7 SCK Purple/green
+ * Xtal2 3 6 MISO Black/Black
+ * Black Gnd 4 5 MOSI Gray/Yellow