Fujitsu SK-96390-100PMC Benutzerhandbuch - Seite 14
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2.2 Power Supply (JP: 29, 30, 37, 40, 43, 49)
The on-board voltage regulator provides stabilized 5V and 3.3V supplies to the MCU and
peripherals. Even though they are thermally protected against overload, care must be taken
when supplying current for additional circuitry.
The LIN Vs line can be connected directly to the input supply of the board by jumpers. In this
case, the input voltage to the board has to be suitable for the connected bus devices (mostly
around 12V). Since there is a protection diode between Vin and Vs, it is not possible to
power the board over the LIN bus.
JP29 Selects the power supply voltage for the microcontroller
JP30 Selects the Stepper Motor Driver Voltage (3.3V or 5V)
JP37 Connects the power supply voltage to the microcontroller. An ampere meter can be
used instead for power consumption measurement.
JP40 Core power supply stabilization capacitor
JP43 Jumper to switch board on, off or connect an external switch
JP49 Stepper Motor Driver VSS
Jumper
JP29
(VCC 5V/3,3V)
JP30
(DVCC)
JP37
(MCUVCC)
JP40
(C-pin)
JP43
(Power)
JP49
(DVSS)
By default, all Board supplies are set to 5V.
UG-960017-11
SK-96390-100PMC User Guide
Chapter 2 Jumpers and Switches
Setting
Description
1 - 2
Power supply (VCC) for MCU is set to 5V
2 - 3
Power supply (VCC) for MCU is set to 3V3
1 - 2
SMC (DVCC) supply voltage is set to 5V
2 - 3
SMC (DVCC) supply voltage is set to 3.3V
Closed
MCU is connected to VCC
Open
MCU is disconnected from VCC
Closed
An external capacitor is connected
Open
An external capacitor is not connected
Closed
Board is switched on
Open
Board is switched off
Closed
SMC (DVSS) connected to VSS
Open
SMC (DVSS) connected to VSS
Table 2-2: Power Supply Configuration
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