Xplained Pro Power Header - Atmel SAM4L Xplained Pro User Manual

Description
Segment 28
Segment 30
Segment 32 /
QTouch X-line 2
Segment 34 /
QTouch X-line 1
Segment 36 /
QTouch X-line 0
Common terminal 4
Common terminal 6
Backlight anode
Backlight control
Ground
3.4.3.

Xplained Pro Power Header

The power header can be used to connect external power to the SAM4L Xplained Pro kit. The kit will
automatically detect and switch to any external power if supplied. The power header can also be used as
supply for external peripherals or extension boards. Care must be taken not to exceed the total current
limitation of the on-board regulator when using the 3.3V pin.
Table 3-6 Xplained Pro Power Header
Pin number
1
2
3
4
Function
SEG28
SEG30
SEG32 / QT_X2
SEG34 / QT_X1
SEG36 / QT_X0
COM4
COM6
Backlight V+
Backlight CTRL
GND
Pin name Description
VEXT_P5V0 External 5V input
GND Ground
VCC_P5V0 Unregulated 5V (output, derived from one of the input sources)
VCC_P3V3 Regulated 3.3V (output, used as main power supply for the kit)
Pin Pin Function
33 34 SEG29
35 36 SEG31
37 38 SEG33 / QT_Y2
39 40 SEG35 / QT_Y1
41 42 SEG37 / QT_Y0
43 44 COM5
45 46 COM7
47 48 Backlight V-
49 50 ID
51
Atmel SAM4L Xplained Pro [USER GUIDE]
Atmel-42074C-SAM4L-Xplained-Pro_User Guide-11/2015
Description
Segment 29
Segment 31
Segment 33 /
QTouch Y-line 2
Segment 35 /
QTouch Y-line 1
Segment 37 /
QTouch Y-line 0
Common terminal 5
Common terminal 6
Backlight cathode
Xplained Pro ID
13