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3.2.1 MCU Power Supply Voltage
JP21 With this jumper it is possible to connect the MCU external bus interface supply
VDD35 to 3.3 V. The MCU MB91460 series supports the function to supply the MCU
with 5V so that the normal I/O ports work with 5V and supply the external bus
interface with 3.3 V.
JP23 This jumper is used to connect the HVDD5 supply to MCUVcc. The HVDD5 is the
MCU supply voltage for the high current ports.
JP25 This jumper is used to connect the VDD5R MCU supply pins to MCUVcc.
JP26 This jumper is used to connect the Vcc voltage to MCUVcc.
JP27 This jumper is used to connect the VDD5 MCU supply pins to MCUVcc.
JP28 This jumper is used to connect the HVSS5 MCU pins to GND. HVSS5 are the GND
pins for the high current ports.
Jumper
JP21
ON (closed)
JP23
OFF (open)
ON (closed)
JP25
OFF (open)
ON (closed)
JP26
OFF (open)
ON (closed)
JP27
OFF (open)
ON (closed)
JP28
OFF (open)
Default: grey
Table 3-5: MCU Power Supply SK-91F467D-208PFV
3.2.2 MCU Analogue Power Supply Voltage
The power supply as well as the reference voltage for the A/D-converter can be provided
internally or externally.
JP15 Connects power supply AVcc of the A/D converter to MCUVcc
JP16 Connects high reference voltage AVRH of the A/D converter to AVcc
JP18 Connects AVss of the A/D converter to GND
FMEMCU-UG-910014-10
SK-91F467D-208PFV V1.1
Jumpers and Switches
Note:
JP23, JP25, JP26, JP27 and JP28 can be used for
measurements of power consumption of the MCU.
Setting
Description
1-2
VDD35 is connected to MCUVcc
2-3
VDD35 is connected to 3.3 V
HVDD5 is connected to MCUVcc
HVDD5 is not connected to MCUVcc
VDD5R is connected to MCUVcc
VDD5R is not connected to MCUVcc
MCUVcc is connected to Vcc
MCUVcc is not connected to Vcc
VDD5 is connected to MCUVcc
VDD5 is not connected to MCUVcc
HVSS5 is connected to GND
HVSS5 is not connected to GND
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© Fujitsu Microelectronics Europe GmbH
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