- /* Set the current port configuration; turn on GPIO_0 and GPIO_1 to get
- * activity LEDs. GPIO_2 and GPIO_3 are set for 'regular' gpio.
+ /* This section assumes the device is currently at factory defaults. If
+ * not, first run 'cpfactory'. The only delta from factory defaults is to
+ * activate the activity pin functions for GPIOs 0 and 1. Some boards may
+ * require weak pull-ups, but not TMI's RWS.
+ *
+ * GPIO mapping:
+ * GPIO_0 -> TX activity, active low
+ * GPIO_1 -> RX activity, active low
+ * GPIO_2 -> MSP430 UC_TCK
+ * GPIO_3 -> MSP430 UC_RST
+ *