
Board Description
4.2.14
Push Buttons
The SAM9M10-G45-EK is equipped with two system push buttons, two user push buttons and one joy-
stick. The push buttons consist of momentary push button switches mounted directly to the board. When
any switch is depressed, a low (zero) appears at the associated input pin.
System push buttons:
– Reset, perform system reset
– Wakeup, perform system wake up
User push button:
– Right click
– Left click
Joystick:
– One touch, 5-way switching,
– Normally open momentary contacts,
– Push down to select in any position.
Figure 4-20.
Push Buttons
VDDBU
3 V 3
R2 3
R24
BP1
100k
1k
NR S T
WAKE UP
BP2
BP4
NR S T
WAKE UP
RIGHT CLICK
C 3 1
10n
R27
100R
PB7
BP5
4.2.15
Expansion Slot
LEFT CLICK
C 3 7
10n
R29
100R
PB6
GPIO1 & GPIO2, LCD signals (PIO E) are routed to the connectors extension J23
All I/Os of the SAM9M10 Image Sensor Interface are routed to connectors J17
Touch screen signals and analog I/O are connected to J18
This allows the developer to extend the features of the board by adding external hardware components
or boards.
4-22
6495B–ATARM–21-Apr-10
AT91SAM9M10-G45-EK User Guide