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6.1. Switches
There are four switches located on the RSK. The function of each switch and its connection are shown in Table 6-1.
Switch
RES
SW1/BOOT*
SW2*
SW3*
*Refer to schematic for detailed connectivity information.
6.2. LEDs
There are six LEDs on the RSK board. The green 'POWER' LED lights when the board is powered. The orange BOOT LED indicates the
device is in BOOT mode when lit. The four user LEDs are connected to an IO port and will light when their corresponding port pin is set low.
Table 6-2, below, shows the LED pin references and their corresponding microcontroller port pin connections.
LED Reference (As shown
on silkscreen)
LED0
LED1
LED2
LED3
6.3. Potentiometer
A single turn potentiometer is connected to AN0.0 (P10.0) of the microcontroller. This may be used to vary the input analogue voltage value
to this pin between AVCC and Ground.
Chapter 6. User Circuitry
When pressed the RSK microcontroller is reset.
Connects to an IRQ input for user controls.
The switch is also used in conjunction with the RES switch to place
the device in BOOT mode when not using the E8a module.
Connects to an IRQ line for user controls.
Connects to the ADC trigger input. Option link allows connection to
IRQ line. The option is a pair of 0R links.
Table 6-1: Switch Functions
Microcontroller Port Pin function
Port 4.0
Port 4.1
Port 4.2
Port 4.3
Function
Table 6-2: LED Port
7
Microcontroller
RESn
INT0 Pin18
(Port 8, pin 2)
INT1 Pin17
(Port 8, pin 3)
ADTRG Pin 98
(Port 9, pin 7)
OR
INT2 Pin16
(Port 8, pin 4)
Microcontroller Pin Number
52
51
50
49
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