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4.5
Pushbutton Switches
There are three pushbutton switches.
Function Description of Pushbutton Switches
Table 9.
No.
Description
SW1
Reset switch
SW2
Connected to row 2, pin 5
SW3
Connected to row 2, pin 6
4.6
Potentiometer
A potentiometer, R51 in the upper right of the M-Station, is connected to pin 6 of row 2. Its low voltage
is GND, provided when the potentiometer shaft is turned counterclockwise to its full extent. The high
voltage is V
, provided when the potentiometer shaft is turned clockwise to its full extent.
DE
Pin 6 of row 1 is connected to an analog input port of the micro-board. By inserting a jumper between
pin 6 on rows 1 and 2, you can test analog-to-digital (A/D) conversion using the potentiometer to
supply a voltage between GND and V
Figure 11.
Seven-Segment LED
Function
System reset for M-Station and micro-board when micro-board is connected
General-purpose switch input to a port of the microcontroller CPU
General-purpose switch
.
DE
15
M-Station Baseboard
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