User's Manual

Interface Locations and Pinouts
1322x Sensor Node Reference Manual, Rev. 1.1
Freescale Semiconductor 4-3
4.4 USB Connector (“B” Receptacle)
The USB connector is designated as J6. Figure 4-2 shows the connector pinout.
Figure 4-2. USB Connector Pinout
4.5 LEDs, Switch, Buttons and Joystick
The Sensor Node contains a total of four red LEDs and one green LED
• The four red LEDs are driven by the MCU and controlled by the software application.
• As previously discussed, the green LED is directly connected to the on-board regulation and acts
as “Power On” indication.
As also previously discussed SW7 is an on/off slide switch that connects the power supplies.
There are five pushbuttons total.
• One pushbutton (SW5) is separate and provides a master hardware Reset.
• Four additional pushbuttons are connected to the MCU GPIO for software application. These
buttons all have interrupt generation capability
A joystick (SW6) is also provided.
• The joystick is a “4-direction TACT Switch with Center Push”.
• The 4-directional TACT switches are connected in parallel with the four user pushbuttons.
• The center push switch is separate and does not have interrupt generation capability
Table 4-2. Switch and LED Summary
Item GPIO Connection Feature
PWR (green) VCC ‘Power On’ indication
LED1 (red) KBI_1 Application specific
LED2 (red) KBI_2 Application specific
LED3 (red) KBI_3 Application specific
LED4 (red) TX_ON Application specific