DEMOJM Freescale Semiconductor, DEMOJM Datasheet - Page 27

• Manufacturer Part Number: DEMOJM
• Description: KIT DEMO FOR JM MCU FAMILY
• Manufacturer: Freescale Semiconductor
• Series: ColdFire®r
• Type: MCUr

Specifications of DEMOJM

• Contents: Base Board, JM60 and JM128 Daughter Cards, Documentation and Software
• Processor To Be Evaluated: MC9S08JM60
• Data Bus Width: 32 bit
• Interface Type: USB
• Silicon Manufacturer: Freescale
• Core Architecture: Coldfire, HCS08
• Core Sub-architecture: Coldfire V1, HCS08
• Silicon Core Number: MCF51, MC9S08
• Silicon Family Name: Flexis - MCF51JM, Flexis - S08JM
• Rohs Compliant: Yes
• For Use With/related Products: MCF51JM128, MC9S08JM60
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

8
8.1
8.1.1
8.1.2
8.2
DEMOJM User Manual
JUMPER SETTINGS
System Power
Virtual Serial Port
J3 - Power Source Selection
J33 - MCU PORT
The JM processor may obtain its power from the on-board regulator, USB
port, Mini-USB port, or through MCU_PORT J1. The on-board regulator
obtains its input from a 2.5mm barrel connector. The on-board regulator can
regulate the output to 5V. Power input is selected by using the J3 headers.
Select the USB port to supply microcontroller VDD. This is the default setting.
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.
The DEMOJM board has a built-in virtual serial port which may be connected
to the JM processor’s SCI RXD1/TXD1. This allows certain PC applications to
be able to connect in a serial fashion to the microcontroller without the actual
use of serial port hardware. It can be enabled or disabled by installing or
removing the jumpers of J4.
Figure 8-1: VDD_SELECT Option Header (J3)
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