Fujitsu MB91460 SERIES 사용자 설명서 - 페이지 17
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Fujitsu MB91460 SERIES에 대해서도 마찬가지입니다: 시작하기 (41 페이지), 애플리케이션 노트 (23 페이지), 애플리케이션 노트 (26 페이지), 애플리케이션 노트 (29 페이지), 애플리케이션 노트 (29 페이지)
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3.2 Power Supply (S3, JP: 8, 9, 11, 12, 66)
The onboard voltage regulators provide 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.
S3
Power Switch
JP1
Selects the MCU IO Block 1 and peripherals VCC_1 voltage (3.3V or 5V)
JP2
Selects the MCU IO Block 2 and peripherals VCC_2 voltage (3.3V or 5V)
JP3
Selects the MCU IO Block 3 and peripherals VCC_3 voltage (3.3V or 5V)
JP4
Connects the MCU IO Block 1 Supply (MCUVCC5_1) to VCC_1. Can be used for
current measurement.
JP5
Connects the MCU IO Block 2 Supply (MCUVCC5_2) to VCC_2. Can be used for
current measurement.
JP6
Connects the MCU IO Block 3 Supply (MCUVCC5_3) to VCC_3. Can be used for
current measurement.
JP7
Supplies the MCU External Bus MCUVCC3 with VCC3V3 (3.3V). Can be used for
current measurement.
JP19 Power jumper; overrides the power switch S3.
JP69, 79, 89, 99
Switch
S3
Jumper
JP1
(VCC_1 3.3V/5V)
JP2
(VCC_2 3.3V/5V)
JP3
(VCC_3 3.3V/5V)
JP4
(VCC5_1)
© Fujitsu Microelectronics Europe GmbH
SK-91467R-176PMC User Guide
Chapter 3 Jumpers and Switches
Connects Vs (Pin 1 of D-Sub Connector) to VBAT.
Setting
Description
ON (1-2)
Power ON
OFF (2-3)
Power OFF
Table 3-4: Power Switch
Setting
Description
1 - 2
MCU IO Block 1/ Peripherals @ 3.3V
2 - 3
MCU IO Block 1/ Peripherals @ 5V
1 - 2
MCU IO Block 2/ Peripherals @ 3.3V
2 - 3
MCU IO Block 2/ Peripherals @ 5V
1 - 2
MCU IO Block 3/ Peripherals @ 3.3V
2 - 3
MCU IO Block 3/ Peripherals @ 5V
Closed
Power supply VCC_1 connected to MCUVCC5_1
Open
Power
MCUVCC5_1
supply
VCC_1
- 17 -
not
connected
to
FMEMCU-UG-910053-16