DC9S08QE32 Freescale Semiconductor, DC9S08QE32 Datasheet - Page 25

• 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

7.2
7.2.1
DEMO9S08QE32 User Manual
RS232 Communications
J6 - SCI RXD Signal Selection Jumper RXD_EN
The DEMO9S08QE32 integrates an RS232 transceiver for the microcontroller
SCI signals. The transceiver operates from 1.8V to 4.25V, and it can be
enabled or disabled via jumper settings or through firmware control. The
DEMO9S08QE32 also integrates the SCI signal into the Embedded Multilink
circuitry. A user can communicate with the microcontroller SCI module via
either the on-board DB9 connector or the Embedded Multilink circuitry. There
are three jumpers associated with SCI communication.
Select the battery pack to supply microcontroller VDD
Select the MCU_PORT to supply microcontroller VDD. This setting
also allows power to be supplied to the target connected to the
MCU_PORT. By default this jumper is installed.
Connects the microcontroller PTB0/RXD signal to the RS232
transceiver.
Figure 7-3: VDD_SELECT Option Header (J5)
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