DEMOEM Freescale Semiconductor, DEMOEM Datasheet - Page 35

• 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

7.12.1
DEMOEM User Manual
J31 - IRQ Button
Figure 7-19: Differential Analog Channel Inputs Header DADMx (J29)
29, which may be connected to GND by installing the jumpers. By default they
are connected to GND.
The DEMOEM board brings DADP0, DADP1, and DADP2 signals to header
38, which is shared with the LEDs for QE8.IRQ, RESET, and TAMPER
Buttons
The DEMOEM board has an IRQ button enabled by jumper position 32. When
enabled it is connected to either a pullup or a pulldown resistor, determined by
jumper J31.
By default it is connected to a pulldown resistor.
The DEMOEM board has a RESET button and LED enabled by Header J33.
Figure 7-20: IRQ Pull-Up/Pull-Down Enable (J31)
Figure 7-21: IRQ_EN (J32)
31