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Board Description
4.2.9
Software Controlled LEDs
Three users LED are provided for general use. The LEDs are connected to PIO port lines, allowing their
control through either GPIO or PWM control.
LEDs D1 to D3 are software controlled by PIO pins.
LEDs D4 to D6 indicate Ethernet traffic and link status. These are automatically managed by on-chip
microcontroller hardware. See Section 7.1 ”Schematics” .
Table 4-3. Discrete LEDs
LED
D1
D2
D3
D4
D5
D6
Description
Green LED
Green LED
Red LED
Yellow LED
Green LED
Green LED
Comment
User software controlled
User software controlled
User software controlled
Indicates transmission or reception via Ethernet
Indicates speed 100
Is lit when a good link test has been detected
Figure 4-14. Software Controlled LEDs
U S ER INTERFACE
3 V 3
Green
D1
3 V 3
1
2
R21
470R
PD0
D2
1
2
R22
470R
PD 3 1
Green
R25
470R
PB15
PB16
D 3
Red
R26
100k
1
BP 3
4 UP
3
PB14
PB1 8
LEFT
PU S H
2
3
5 RIGHT
6 DOWN
Q2
IRLML2402
1
PD 3 0
PB17
JOY S TICK
2
C 3 2
10n
C 33
10n
C 3 4
10n
R2 8
C 3 5
10n
C 3 6
10n
100R
4-18
6495B–ATARM–21-Apr-10
POWER LED
PB[14..1 8 ]
AT91SAM9M10-G45-EK User Guide
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