DC9S08QE32 Freescale Semiconductor, DC9S08QE32 Datasheet - Page 23

• Manufacturer Part Number: DC9S08QE32
• Description: DAUGHTER CARD FOR DEMO9S
• Manufacturer: Freescale Semiconductor

Specifications of DC9S08QE32

• Accessory Type: Daughter Card
• Processor To Be Evaluated: MC9S08QE32
• Data Bus Width: 8 bit
• Interface Type: RS-232, USB
• Silicon Manufacturer: Freescale
• Core Architecture: HCS08
• Core Sub-architecture: HCS08
• Silicon Core Number: MC9S08
• Silicon Family Name: Flexis - S08QE
• Rohs Compliant: Yes
• For Use With/related Products: DEMO9S
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

6.2
7
7.1
7.1.1
DEMO9S08QE32 User Manual
JUMPER SETTINGS
Serial Accelerometer Application
System Power
J3 - Regulator Input Selection Jumper
This microcontroller application samples the state of the on-board three-axis
accelerometer using on-chip A/D converter channels. This data is converted
into ASCII characters and sent out using the serial pins of the QE32
processor. These serial pins may be connected to either serial port hardware
or to P&E’s virtual serial port (which is part of the Embedded Multilink design).
This connection is controlled by jumpers J6 and J7.
P&E has two PC-based DEMOQE Toolkit applications which allow the serial
port data generated by this application to be graphed. These are documented
in Section 5.4 - DEMOQE Accelerometer Demo Application and Section
5.5 - DEMOQE Serial Grapher Application.
The source code for this microcontroller based Serial Accelerometer
Application is included on the CD-ROM included with the DEMOQE and also
may be found at http://www.pemicro.com/fixedlinks/demoQEtoolkit.html.
The QE32 processor may obtain its power from either the on-board regulator,
a 2-cell battery pack, or through MCU_PORT J1. The on-board regulator
obtains its input from either the Embedded Multilink circuitry or a 2.5mm barrel
connector. The on-board regulator can regulate the output to either 2.1V or
3V. The DEMO9S08QE32 is fully functional at both voltages. Power input and
voltage selection are achieved by using 3 option headers.
Jumper 3 determines whether the DEMO9S08QE32’s on-board regulator
obtains its power from the DC power jack or from the Embedded Multilink
circuitry. The regulator input selection is mutually exclusive. It prevents power
input contention from damaging the board and the host. Figure 7-1 shows the
regulator input selection details.
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