SK-91470-144PMC1-MC User Guide
Chapter 4 Jumpers and Switches
© Fujitsu Microelectronics Europe GmbH
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FMEMCU-UG-910067-10
Note:
While a reset signal is asserted the red Reset-LED (LED16) is lit.
During normal operation, this LED should be off.
If the reset LED is steadily on or blinks periodically, check the power supply input voltage
and the settings for the reset generation by UART as well as the jumpers JP23 and JP30.
4.7 Buttons
SW1-SW7
(JP: 1, 5, 6, 8, 10, 11, 25, 38)
JP1, JP5, JP8, JP10, JP11, JP38
Six
user push buttons SW1-SW6 can be connected to the microcontroller.
SW2 also serves as test button for the MCU DTTI function, which stops the
PWM output e.g. in case of an inverter fault.
JP6
Common interrupt for SW3-SW6: Eases up button event handling when the
buttons are used to control an application
JP25
External reset circuit and button SW7 can be connected to the microcontroller.
Jumper
Setting
Description
JP1 (SW1)
Closed
NMIX of the MCU is connected to SW1
Open
No connection to the microcontroller
JP38 (SW2)
Closed
DTTI LED15 connected to MCU Pin 57 (DTTI)
Open
No connection to the microcontroller
JP5 (SW3)
Closed
Pin 23 (INT3) of MCU is connected to SW3 and JP6
Open
No connection of INT3
JP8 (SW4)
Closed
Pin 14 (TIN2) is connected to SW4
Open
No connection to the microcontroller
JP10 (SW5)
Closed
Pin 56 (CKI0) of the MCU is connected to SW5
Open
No connection to the microcontroller
Closed
Pin 67 (ADTG4) of the MCU is connected to SW6
JP11 (SW6)
Open
No connection to the microcontroller
Closed
SW3 - SW6 connected to INT3 (wired-OR)
JP6
(COMM. INT)
Open
Only SW3 is connected to INT3
Closed
INITX is connected to the reset IC and SW7
JP25 (Reset)
Open
No connection to INITX
By default, all push-buttons as well as the reset circuit are connected to the microcontroller.