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input contention from damaging the board and the host. Figure 7-1 shows the
regulator input selection details.
Select regulator input from DC power jack. A 5-8VDC center positive
power supply must be used.
Note:
The DEMOQE board power connector is incorrectly labelled as 5-12VDC.
The maximum voltage is 8VDC.
Select regulator input from the Embedded Multilink circuitry,
which derives its power from the USB bus
Figure 7-1: PWR Selection Header (J3)
7.1.2
24
J4 - Regulator Output Selection Jumper VOLT_EN
The regulator can output either a 2.1VDC or 3VDC voltage for the
DEMO9S08QB8. The VOLT_EN jumper J4 selects the voltage. Figure 7-2
shows the regulator output selection details.
Select regulator output to be 2.1V.
Select regulator output to be 3V
Figure 7-2: Regulator Voltage Output Selection VOLT_EN (J4)
DEMO9S08QB8 User Manual
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