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Installation
MMDS0508OM/D
24
Installation
MOTOROLA
Port Voltage
Control Headers
(J2–J4)
Jumper headers J2 through J4, located near the right front corner of the
platform board, set the voltage levels for ports A through D. The
following diagram shows the factory configuration. The fabricated
jumpers between pins 1 and 2 of these headers set the +5-volt level for
all ports. This is the correct configuration for MMDS operation, unless
the EM user's manual says that the EM is a low-voltage board.
If the EM can operate at low voltage, any of the ports can be operated at
the low-voltage level. To do so, reposition the fabricated jumper of the
corresponding header to pins 2 and 3. Jumper header J2 controls the
voltage level of port A, jumper header J3 controls the voltage level of port
B, and jumper header J4 controls the voltage level of port C or D,
whichever pertains to the EM.
1
2
3
J2
FABRICATED
JUMPERS
J3
J4
PORT A
PORT B
PORT C/D
VPRU
+5
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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