Fujitsu FLASH-CAN-48P Manuel de l'utilisateur - Page 12
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3.3 Power Supply Voltage (JP: 29, 34)
Vcc and GND (Vss) are both connected to the edge-connector (X4) in order to supply
additional circuitry. In this case take care of not to exceed the maximum ratings of the on
board voltage regulator LM317T.
JP29 Power Supply selection
JP30 Power Supply voltage selection: +5V or +3.3V
JP34 This Jumper is used to connect the Vcc supply voltage to the µC.
Connecting an Ampere-meter instead of the jumper allows measuring of the power-
supply-current of the microcontroller (Icc).
Jumper
JP29 (Vcc)
JP30 (3V3)
JP34 (MCUVcc)
Default: JP29 = 1-2, JP30 = OFF, JP34 = ON,
By default, the on-board Voltage +5V regulation is used and the microcontroller is powered.
UG-900002-20
FLASH-CAN-48P
Chapter 3 Jumpers and Switches
Setting
Description
1 - 2
On-board voltage regulation
2 - 3
not supported
ON (closed)
voltage regulation adjusted to +3.3V
OFF (open)
voltage regulation adjusted to +5V
ON (closed)
Power supply Vcc is connected to µC
OFF (open)
Disconnected from Power supply Vcc
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