Renesas M-Station, Руководство пользователя

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M-Station Baseboard
Figure 11. Seven-Segment LED
4.5 Pushbutton Switches
There are three pushbutton switches.
Table 9.
Function Description of Pushbutton Switches
No. Description Function
SW1 Reset switch System reset for M-Station and micro-board when micro-board is connected
SW2 Connected to row 2, pin 5 General-purpose switch input to a port of the microcontroller CPU
SW3 Connected to row 2, pin 6 General-purpose switch
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
DE
, provided when the potentiometer shaft is turned clockwise to its full extent.
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
DE
.
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