TWR-MCF51QM-KIT Freescale Semiconductor, TWR-MCF51QM-KIT Datasheet - Page 10

• Manufacturer Part Number: TWR-MCF51QM-KIT
• Description: MCF51QM Tower Kit
• Manufacturer: Freescale Semiconductor
• Series: ColdFire®, Flexis™r
• Type: MCUr

Specifications of TWR-MCF51QM-KIT

• Rohs Compliant: YES
• Contents: 4 Boards, Cable, DVD
• Peak Reflow Compatible (260 C): Yes
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• For Use With/related Products: MCF51QM128

2.4 Debug Interface
There are two debug interface options provided: the on-board OSBMD circuit and an external
Background Debug Mode (BDM) connector. The BDM connector is a standard 6-pin connector
providing an external debugger cable with access to the BDM interface of the MCF51QM128.
Alternatively, the on-board OSBDM debug interface can be used to access the debug interface of the
MCF51QM128.
2.4.1 OSBDM
An on-board MC9S08JM60 based Open Source BDM (OSBDM) circuit provides a BDM debug interface
to the MCF51QM. A standard USB A male to mini-B male cable (provided) can be used for debugging
via the USB connector, J16. The OSJTAG interface also provides a USB to serial bridge. Drivers for the
OSBDM interface are provided in the P&E Micro OSBDM/OSJTAG Tower Toolkit (available on the
included DVD). These drivers and more utilities can be found online at
http://www.pemicro.com/osbdm.
2.5 Infrared Port
An infrared transmit and receive interface is implemented as shown in Figure 6 below. The CMT_IRO
pin directly drives an infrared diode. The receiver uses an infrared phototransistor connected to an on-
chip analog comparator through a low-pass filter. Internal to the MCF51QM device, the output of the
analog comparator can be routed to a UART module for easier processing of the incoming data stream.
Figure 6. Infrared Port Implementation
Note: The PTC5 pin is shared between the Infrared circuit and the green LED (D50). Jumper J1 routes
the signal to either the infrared (shunt on pin 2-3) or LED (shunt on 1-2).
TWRMCF51QMUM
TWR-MCF51QM Tower Module User's Manual
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