User's Manual

Interface Locations and Pinouts
1320x-QE128EVB Reference Manual, Rev. 0.0
4-4 Freescale Semiconductor
4.7 LEDs and Switches
The 1321x-QE128EVB contains four red LEDs and one green LED
• The four red LEDs (LED1 through LED4) are intended to be application-based indicators and are
driven by the MCU and controlled by the software application.
• As already stated, the green LED is directly connected to the on-board main supply and acts as the
“Power On” indication.
There is a slide switch and 4 pushbuttons.
• SW1 is an on/off slide switch that connects the power supplies.
• Four additional pushbuttons (SW2 through SW5) are connected to the MCU GPIO and are
intended as application input devices. All four buttons have interrupt generation capability.
4.8 Debug/Development Connector (BDM Interface)
The 1320x-QE128EVB supports connection to a subset of the defined BDM connector. The BDM
interface is a standard 2.54mm/0.1inch spacing, 6-pin debug interface (J9). The 6-pin connector is clearly
separated from the GPIO pin headers (J3, J4) and located at the upper right corner of top side of the
module. The 6-pin connector has Pin 1 marking for correct plug-in of the development cable.
Table 4-3 shows the BDM header pinout.
Table 4-2. Switch and LED Summary
Item GPIO Connection Feature
PWR LED (green) VCC ‘Power On’ indication
LED1 (red) PTE3 Application specific
LED2 (red) PTE4 Application specific
LED3 (red) PTE5 Application specific
LED4 (red) PTE6 Application specific
SW2 (pushbutton) PTD0 Interrupt functionality.
SW3 (pushbutton) PTD1 Interrupt functionality.
SW4(pushbutton) PTD2 Interrupt functionality.
SW5 (pushbutton) PTD3 Interrupt functionality.
SW1 (ON/OFF) ON/OFF HW ON/OFF
Table 4-3. BDM 6-Pin Connector Assignments (J9)
Name Pin # Pin # Name
BKGD 1 2 GND
NC
1
3 4 Pullup
2
(RESET)
NC 5 6 V_BB