SK-91470-144PMC1-MC User Guide
Chapter 4 Jumpers and Switches
© Fujitsu Microelectronics Europe GmbH
- 11 -
FMEMCU-UG-910067-10
4 Jumpers and Switches
This chapter describes all jumpers and switches that can be modified on the evaluation
board. The default setting (for MB91F479) is shown with a grey shaded area.
4.1 Power Supply (JP: 26, 41)
The onboard voltage regulator provides stabilized 5V supply to the MCU and peripherals.
Even though it is thermally protected against overload, care must be taken when supplying
current for additional circuitry, like sensors or encoders.
JP26
Connects the MCU supply to VCC5; can be used for MCU current measurement
JP41
Selects on-board (X15) or ext. (X12) DC input
Jumper
Setting
Description
Closed
MCUVCC connected to VCC5
JP26
(MCUVCC)
Open
for current measurement
1-2
DC input by X15
JP41
(DCIN EXT/INT)
2-3
DC input by X12 (ext. power stage)
