DEMOEM Freescale Semiconductor, DEMOEM Datasheet - Page 33

• Manufacturer Part Number: DEMOEM
• Description: BOARD DEMO HARDWARE ONLY
• Manufacturer: Freescale Semiconductor
• Series: MCF51EMr
• Type: MCUr

Specifications of DEMOEM

• Contents: Board, Cable, DVD and Guide
• Product: Microcontroller Modules
• Data Bus Width: 32 bit
• Core Processor: MCF51EM
• Interface Type: RS-232, USB
• Operating Supply Voltage: 5 V
• Board Size: 6 in x 4.5 in
• Silicon Manufacturer: Freescale
• Core Architecture: Coldfire
• Core Sub-architecture: Coldfire V1
• Silicon Core Number: MCF51
• Silicon Family Name: MCF51EM
• Rohs Compliant: Yes
• For Use With/related Products: MCF51EM
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

7.8
7.9
7.9.1
DEMOEM User Manual
External Crystal Circuitry
P&E’s Input Capture Header
J18 - P&E’s Logic Analyzer Inputs IN0/IN1
The DEMOEM design incorporates, but has not populated, a crystal circuit for
XOSC2. Jumper 17 enables the EXTAL2 and XTAL2 signal connections when
populated.
The logic analyzer inputs are marked on one side of the J18 jumper. The
inputs allow P&E’s PC-based logic analyzer application to display these
signals in real-time.
Figure 7-15: External Crystal Circuitry CLK2_EN (J17)
By installing both jumpers, the logic analyzer pins IN0 and IN1 will be
connected to PTA5 and PTA6 respectively.
By removing these jumpers IN0 and IN1 will be unconnected. The
user may connect these signals, via wires, to any other signals on the
Figure 7-14: PTB0 IR Enable (J43)
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