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Evaluation Kit Hardware
4.2.3.4
Power Supplies
The CM Board is driven by +3V3 input power rail from the EK board through the SODIMM200 connector.
The CM Board embeds all the necessary power rails required for the micro processor.
When additional voltages are required, for example VDDCORE, they are generated on board from the
3.3V supply. The detailed power supply requirements for any given module are specified within the cor-
responding product documentation. The following table summarizes the power specifications.
Table 4-4. Power Rails Associated with the Systems
Nominal
3.3v
3.3v
3.3v
Name
VDDNF
VDDIOP0
VDDIOP1
Powers
the NAND Flash I/O and control, D16-D32 and
multiplexed SMC lines
Partial Peripheral I/O lines
Partial Peripheral I/O lines
Component
From SODIMM200 connector
From SODIMM200 connector
From SODIMM200 connector
the Slow Clock oscillator, the internal 32 kHz
3.0v
VDDBU
RC, the internal 12 MHz RC and a part of the
From SODIMM200 connector
System Controller
3.3v
3.3v
3.3v
1.8v
1.0v
3.3v
1.0v
1.0v
3.0V or 3.3V
configurable
4-6
VDDUTMII
VDDOSC
VDDANA
VDDIOM
VDDUTMIC
VDDPLLUTMI
VDDPLLA
VDDCORE
ADVREF
the USB device and host UTMI+ interface
the Main Oscillator cells
the Analog to Digital Converter
the External Memory Interface I/O lines
DC Supply UDPHS and UHPHS UTMI+ Core
DC Supply UDPHS and UHPHS UTMI+
Interface
the PLLA cell
the core, including the processor, the
embedded memories and the peripherals
ADC Reference voltage
From SODIMM200 connector
From SODIMM200 connector
From SODIMM200 connector
on-board
on-board
From SODIMM200 connector
on-board
on-board
From SODIMM200 connector
Evaluation Kit (EK) User Guide
11115A–ATARM–27-Jul-11
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