User guide

Evaluation Kit Hardware
4-6 Evaluation Kit (EK) User Guide
11115A–ATARM–27-Jul-11
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 Name Powers Component
3.3v VDDNF
the NAND Flash I/O and control, D16-D32 and
multiplexed SMC lines
From SODIMM200 connector
3.3v VDDIOP0 Partial Peripheral I/O lines From SODIMM200 connector
3.3v VDDIOP1 Partial Peripheral I/O lines From SODIMM200 connector
3.0v VDDBU
the Slow Clock oscillator, the internal 32 kHz
RC, the internal 12 MHz RC and a part of the
System Controller
From SODIMM200 connector
3.3v VDDUTMII the USB device and host UTMI+ interface From SODIMM200 connector
3.3v VDDOSC the Main Oscillator cells From SODIMM200 connector
3.3v VDDANA the Analog to Digital Converter From SODIMM200 connector
1.8v VDDIOM the External Memory Interface I/O lines on-board
1.0v VDDUTMIC DC Supply UDPHS and UHPHS UTMI+ Core on-board
3.3v VDDPLLUTMI
DC Supply UDPHS and UHPHS UTMI+
Interface
From SODIMM200 connector
1.0v VDDPLLA the PLLA cell on-board
1.0v VDDCORE
the core, including the processor, the
embedded memories and the peripherals
on-board
3.0V or 3.3V
configurable
ADVREF ADC Reference voltage From SODIMM200 connector