Power Supply; Power Supply Pins - Intel EP80579 Manual

System Power Delivery Guide—Intel
6.2

Power Supply

Power planes or shapes should be used for the major voltages shown in this section.
The functional blocks are powered by the voltages shown in
Note: The EP80579 is a large chip and may have interfaces that are not located near each
other, although they are powered by the same voltage.
These voltages are not necessarily connected in the package or on the silicon. Their
source voltage may be the same voltage plane on the baseboard, but they need to be
considered separate for decoupling purposes on the board. The decoupling needs are
presented based on these functional blocks.
Table 9. Power Supply Pins (Sheet 1 of 2)
Well
Core
®
Intel EP80579 Integrated Processor Product Line
Order Number: 320068-005US
®
EP80579 Integrated Processor Product Line
Development EP80579
Board Power Pin
Voltage Rail Name
1.0V or 1.3V VCCVC
VCCA[1]
1.2V
VCCA[2]
VCC
VCCUSB12
VCCAUSB12
VCCAPE0PLL12
VCCAPE
1.2V
VCCRPE
VCCAPLL
VCCARX
VCCATX
VCCSATA
VCCAHPLL
0.9V
VTTDDR
(DDR2)
VCC18
1.8V
(DDR2)
VCCTMP18
2.5V VCC25
VCC33
VCCGBE33
VCCSATA33
3.3V
VCCABGP033
VCCABG3P3_USB
VCCASATABG3P3
5V VCC50
Table
Supply Types
IA-32 core
IA-32 core
IA-32 core
CRU, DDR2, Expansion
Bus, GbE, IMCH, IICH, PCI
Express, SATA
USB2
USB2
PCI Express
PCI Express
PCI Express
SATA
SATA
SATA
SATA
CRU
DDR2
DDR2
Thermal Sensor
GbE
CRU, Expansion Bus, IMCH,
IICH, MISC IO
GbE
SATA
PCI-Express
USB2
SATA
N/A
9.
Description
VC power
VC PLL1 power
VC PLL2 power
Core logic power
Digital power
Analog power
PLL digital power
Transmitter analog power
Receiver digital power
Analog PLL power
Analog receiver power
Analog transmitter power
SATA power
Analog PLL power
DDR2 reference
DDR2 IO power
Thermal sensor power
GbE IO
I/O power
3.3V tolerance reference
SATA power
Analog bandgap power
Analog bandgap power
Analog bandgap power
N/A
May 2010
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