78K0R – Save It!
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User’s Manual
U19663EE1V0UM00
13
Position
Mode
Left Demo
middle K0USB
Right Debug
Table 2: SW1 modes
2.3 SW2
SW2 is a 3 position switch to set following modes.
Position
Mode
Left Demo
middle K0USB
Right EXT
Table 3: SW2 modes
2.4 SW3
SW3 is an 8 position DIP switch with following functions
Bit
Mode
1
Mode selection (see Table 1)
2
Mode selection (see Table 1)
3
Mode selection (see Table 1)
4
Connected to microcontroller port pin P33
5
Connected to microcontroller port pin P42
6
Connected to microcontroller port pin P43
7
Connected to microcontroller port pin P77
8
Connected to microcontroller port pin P76
Table 4: SW3 modes
Note: Make sure to set the regarding pull-up resistor option registers (PUx) of the microcontroller if
the Pins P33, P42, P43, P76 and P77. Please refer to the
of the
78K0R/Kx3-L for detailed information about the pull-up resistor option register settings.
2.5 SW4 (Reset switch)
SW4 is connected to the external reset pin of the µPD78F1009 microcontroller. External reset can be
triggered by pushing.
2.6 SW5 (INTP0)
SW5 is connected to the "P120/INTP0/EXLVI" pin of the µPD78F1009 microcontroller. It can be used as
external interrupt source.
Note: Make sure to set up the microcontroller internal pull-up resistor option register (PU12)
correctly when using this external switch. Please refer to the
78K0R/Kx3-L for detailed information about the pull-up resistor option register settings.
2.7 SW6 (INTP2)