DEMOQE128 User Manual
3
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A 5VDC to 12VDC power supply input barrel connector
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Power Input Selection Jumpers for selecting the input voltage source:
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Power Input from Embedded Multilink to LDO regulator
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Power Input from DC Power Jack to LDO regulator
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Regulated VDD Output at 3.0V
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Regulated VDD Output at 2.1V
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Power Input from Battery
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Power Input from MCU_PORT connector
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RESET Push Button and LED indicator w/ Enable
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Optional External Crystal Circuitry Layout (not populated)
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User Features:
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3-axis Accelerometer w/Enable
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8 User LED’s w/ Enable
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4 User Push Buttons w/ Enable
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1 Piezzo Buzzer w/ Enable
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IIC Pullups w/ Enable
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10K Ohm POT w/ Enable
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Option Jumpers:
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COM_EN for 1.8V to 4.25V RS232 Transceiver
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TXD_EN for SCI_TXD to Embedded Multilink
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RXD_EN for SCI_RXD to Embedded Multilink
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INPUT_EN for two input channels to Embedded Multilink
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Specifications:
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Board Size 3.5 x 4.0
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Power Input:
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USB Cable: 5VDC, 500mA max
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DC Power Jack: 2.5/5.5mm barrel connector, 5VDC to
12VDC Center Positive
