Atmel SAM4L Xplained Pro Starter Kit Atmel ATSAM4L-XSTK ATSAM4L-XSTK Data Sheet
Product codes
ATSAM4L-XSTK
Atmel SAM4L Xplained Pro [USER GUIDE]
42074B-MCU-05/2013
10
Description
Function
Pin Pin Function
Description
Segment 0
SEG0
5
6
SEG1
Segment 1
Segment 2
SEG2
7
8
SEG3
Segment 3
Segment 4
SEG4
9
10
SEG5
Segment 5
Segment 6
SEG6
11
12
SEG7
Segment 7
Segment 8
SEG8
13
14
SEG9
Segment 9
Segment 10
SEG10
15
16
SEG11
Segment 11
Segment 12
SEG12
17
18
SEG13
Segment 13
Segment 14
SEG14
19
20
SEG15
Segment 15
Segment 16
SEG16
21
22
SEG17
Segment 17
Segment 18
SEG18
23
24
SEG19
Segment 19
Segment 20
SEG20
25
26
SEG21
Segment 21
Segment 22
SEG22
27
28
SEG23
Segment 23
Segment 24
SEG24
29
30
SEG25
Segment 25
Segment 26
SEG26
31
32
SEG27
Segment 27
Segment 28
SEG28
33
34
SEG29
Segment 29
Segment 30
SEG30
35
36
SEG31
Segment 31
Segment 32
SEG32
37
38
SEG33
Segment 33
Segment 34
SEG34
39
40
SEG35
Segment 35
Segment 36
SEG36
41
42
SEG37
Segment 37
Segment 38
SEG38
43
44
SEG39
Segment 39
Not Connected
NC
45
46
NC
Not Connected
Backlight Anode
Backlight V+
47
48
Backlight V-
Backlight Cathode
Backlight Control
Backlight
CTRL
49
50
ID
Xplained Pro ID line
Ground
GND
51
3.4.3
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 the 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 for the 3.3V regulated output. To locate the current measurement header, please refer to
Table 3-6. Power header PWR
Pin number PWR header
Pin name
Description
1
VEXT_P5V0
External 5V input
2
GND
Ground
3
VCC_P5V0
Unregulated 5V (output, derived
from one of the input sources)
4
VCC_P3V3
Regulated 3.3V (output, used as
main power for the kit)
Note
If the board is powered from a battery source it is recommended to use the PWR header. If there
is a power source connected to EDBG USB, the EDBG is activated and it will consume more
power.