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SECTION 3
OPERATION
This section contains the necessary information you need to operate the MPC821FADS
daughterboard.
3.1 INDICATORS
The MPC821FADS daughterboard does not have any switches, but it has five indicators.
3.1.1 Ground Bridges
There are four ground (GND) bridges on the MPC821FADS daughterboard. They can be
used to assist you with easy ground access points for general measurements and a logic
analyzer connection.
Warning: The onboard GND bridges physically resemble the J4 jumper and you should
3.1.2 3.3V Indicator
The yellow 3.3V light (LD1) indicates that the 3.3V power bus is receiving power from the
MPC8xxFADS motherboard.
3.1.3 Memory Map
The memory map is the same on all daughterboards. See Section 3.3 Memory Map of the
MPC8xxFADS User's Manual for more information.
3.1.4 Programming the MPC821 Registers
To program the MPC821 registers, see Section 3.1.7 Programming the MPC821
Registers of the MPC8xxFADS User's Manual.
MOTOROLA
take care not to mistake it for a GND jumper. Doing so could cause permanent
damage to your MPC821FADS daughterboard or MPC8xxFADS
motherboard. When you are connecting to a GND bridge, use only insulated
GND clips to keep from damaging the board.
MPC821FADS-DB USER'S MANUAL
3-1
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