DC9S08QE32 Freescale Semiconductor, DC9S08QE32 Datasheet - Page 32

• 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

7.8
7.8.1
7.9
7.9.1
7.10
28
Note:
Analog Input Potentiometer
Optional External Crystal Circuitry Jumper Enable
Optional Jumpers For Various VDD And VSS
Figure 7-18: External Crystal Circuitry Enable Jumper CLOCK_EN (J17)
J21 - Potentiometer Output Selection Jumpers POT_EN
J17 - External Crystal Circuitry Enable Jumpers CLOCK_EN
Figure 7-17: Potentiometer Output Selection Jumpers POT_EN (J21)
The DEMO9S08QE32 provides an easy access 10Kohm potentiometer
whose output may be connected to PTC6 and/or PTA0, selectable by J21,
POT_EN.
The DEMO9S08QE32 provides external crystal circuitry without components
populated. A user may elect to populate the components, and may use
jumper J17, CLOCK_EN, to enable the external crystal circuitry.
The DEMO9S08QE32 provides 5 jumpers, J22 through J25, for different VDD
and VSS connections on the bottom of the board. By default, they are not
populated and are shorted correspondingly with zero-ohm resistors in parallel,
except J24 which is populated. A user may take off the zero-ohm resistor and
install a corresponding jumper.
JR2 (Jumper 23) and JR5 (Jumper 26) have no efffect on QE32 devices.
Figure 7-16: IIC External Pullup Enable IIC_EN (J20)
Selects the potentiometer output connection. By default it is
connected to PTA0.
Enables or disables the external crystal circuitry. Both positions must
be installed to enable use of crystal circuitry.
DEMO9S08QE32 User Manual