SK-96370-144PMC-GDC User Guide

Chapter 3 Jumpers and Switches

3.4Analog Power Supply Voltage (JP: 11, 12, 13, 14)

The power supply as well as the positive reference voltage for the A/D-converter can be provided internally or externally.

JP11, JP14 connects analog power supply voltages (AVcc and AVss)

JP12 connects the low pass filtered analog reference voltage AVRH to AVcc

JP13 connects the low pass filtered analog reference voltage AVRL to AVss

Jumper

 

Setting

 

Description

 

 

JP11

 

Closed

 

AVcc is connected to Vcc

 

 

(AVcc)

 

Open

 

AVcc is disconnected from Vcc

 

 

 

 

 

 

 

 

 

 

 

 

 

 

JP12

 

Closed

 

AVRH is connected to AVcc

 

 

(AVRH)

 

Open

 

AVRH defined by resistor network

*1

 

 

 

 

 

 

 

 

 

 

 

JP13

 

Closed

 

AVRL is connected to AVss

 

 

(AVRL)

 

Open

 

AVRL defined by resistor network

*1

 

 

 

 

 

 

 

 

 

 

 

 

JP14

 

Closed

 

AVss is connected to GND

 

 

(AVss)

 

Open

 

AVss is disconnected from GND

 

 

 

 

 

 

 

 

 

 

*1By default

the resistor network (R16,

R17, R20, R21) is not mounted on the board

 

 

Table 3-3: ADC Supply

 

 

Default: JP11, JP12, JP13, and JP14 are closed

By default, the A/D-converter supply and reference voltage is the same as the microcontroller supply voltage.

Note:

If JP11 and JP14 are open, the user has to supply an adequate analog voltage supply (AVcc and AVss) to the A/D-converter.

If JP12 and JP13 are open, the resistors R16, R17, R20, and R21 define AVRH and AVRL. By default the resistor network (R16, R17, R20, and R21) is not mounted on the board.

3.5Alarm Comparator (JP: 85)

Potentiometer RP2 is connected to ALARM0 in order to evaluate comparator 0 of the microcontroller. Any voltage between VCC and GND can be set. Additionally the adjusted voltage can be measured at connector J2.

JP78 One potentiometer can be connected to the ALARM0/AN8

Jumper

 

Setting

 

Description

JP85

 

Closed

 

Pin 26

(ALRAM0/AN8) of the MCU is connected to RP2

(ALARM0)

 

Open

 

Pin 26

(ALRAM0/AN8) of the MCU is not connected

 

 

 

 

 

 

 

 

 

Table 3-4: Alarm Comparator

© Fujitsu Microelectronics Europe GmbH

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FMEMCU-UG-960014-10

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Fujitsu MB96300 manual Analog Power Supply Voltage JP 11, 12, 13, Alarm Comparator JP, ADC Supply