SK-91465X-100PMC User Guide
Chapter 3 Jumpers and Switches
UG-910056-11
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© Fujitsu Microelectronics Europe GmbH
3.3 Analogue Power Supply Voltage
The power supply as well as the positive reference voltage for the A/D-converter can be
provided internally or externally.
JP2, JP8
connects analogue power supply voltages (AVcc and AVss)
JP3
connects the analogue reference voltage AVRH to AVcc
Jumper
Setting
Description
Closed
AVcc is connected to Vcc
JP2 (AVcc)
Open
AVcc is disconnected from Vcc
Closed
AVRH is connected to AVcc
JP3 (AVRH)
Open
AVRH defined by resistor network
*1
Closed
AVss is connected to GND
JP7 (AVss)
Open
AVss is disconnected from GND
Default: grey
Table 3-4: Jumper settings for Analogue Power supply
*1
By default the resistor network (R8, R11) is not mounted on the board
By default, the A/D-converter supply and reference voltage is same as the microcontroller
supply voltage.
Note:
If JP2 and JP7 are open, the user has to supply an
adequate analogue voltage supply (AVcc and AVss) to
the A/D-converter.
If JP3 is open, the resistors R8 and R11 define AVRH.
By default the resistor network (R8, R11) is not
mounted on the board.
