NEC 78K0R/L 3 Sense it! Series, Руководство пользователя

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78K0R/Lx3 – Sense it!
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User’s Manual
U20191EE1V0UM00
14
2.2.1 SW1
SW1 can set the signal that is connected to "- side" of microcontroller built-in operational amplifier 0 (AMP0 -
terminal).
SW1 Mode
DAC Connect D/A converter (ANO0) to "- side" of microcontroller built-in operational
amplifier 0 (AMP0 - terminal).
GND Connect "- side" of microcontroller built-in operational amplifier 0 (AMP0 - terminal) to
GND.
Table 2: SW1 modes
2.2.2 SW2
SW2 can set the input voltage for A/D converter (ANI １ ).
SW1 Mode
TEMP
Connect the output of temperature sensor to A/D converter (ANI １ terminal)
Ext Volt
Connect the voltage of J5 connector to A/D converter (ANI １ terminal)
Table 3: SW2 modes
2.2.3 SW3
SW3 can select if it uses microcontroller built-in operational amplifier 0 or not.
SW3 Op-Amp 0 Remarks
ON Use Amplify 10-fold the voltage input to J5 connector by using operational
amplifier 0.
* Set SW2 to "Ext Volt" side.
OFF Not Use Not to use operational amplifier 0
Table 4: SW3 modes
2.2.4 SW4 (Cursor)
SW4 is 4 Ways + Center-push Switch. It becomes "Low" when it is pushed or shifted to the side. It becomes
"Open" when it is released. You need to set microcontroller built-in pull-up option resistor (PU7) to "ON". (For
details about settings of microcontroller built-in pull-up option resistor, refer to the
User’s manual
of
78K0R/Lx3).
SW 4 Target Microcontroller Pin Name Remarks
1pin P70/KR0 UP
2pin P71/KR1 CENTER PUSH
3pin P72/KR2 LEFT
4pin P74/KR3 RIGHT
5pin GND
6pin P73/KR3 DOWN
Table 5: SW4 modes
2.2.5 SW5
SW5 can select the time-sharing of LCD.
SW5 Time-Sharing
ALL OFF 4, 3, 2, Static
ALL ON 8