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Chapter 7
Physical Properties
This chapter explains aspects of the MPC8272ADS physical properties.
7.1
Power Supply
The board gets the power from the ATX power supply (which seats in an ATX chassis). All
the power rails on the board are derived from the ATX power supply. The following power
rails are included with the PowerQUICC II:
• V
(I/O)
DDH
• V
(Internal Logic)
DDL
• VCCSYN (CPM PLL)
• VCCSYN1 (core PLL)
The MPC8272ADS (see Figure 7-1) has the following power rails on it:
• VCC (5V) rail
• Stand By (5V) rail
• V3.3 (3.3V) rail
• V
(1.7V-2.5V) rail
DDL
• +12 V rail
Chapter 7. Physical Properties
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