EP80579 Datasheet, PDF (169/1916 Pages) Intel Corporation – Intel® EP80579 Integrated Processor Product Line

Intel^® EP80579 Integrated Processor
Table 6-3. EP80579 Power Supply Pins
Nominal
Voltage
Voltage
Tolerance
1.2 V
2.5 V
+/-5%
+/-5%
Package Pin
VCC1P2_USBSUS
VCCSUS1
VCCSUS1
VCCSUS25
3.3 V
+/-5%
VCCPSUS
VCCGBEPSUS
5V
WELL = RTC
3.3
+/-5%
+/-5%
VCC50_SUS
VCCPRTC
Supply Types
USB2
IMCH_PAD
GBE
GBE
USB2, IMCH_PAD
GBE
IMCH_PAD, USB2
Description
1.2V USB sustain power
RTC core sustain power
Core GBE sustain power
Sustain GBE power
USB and RTC IO sustain
power
Sustain 3.3V tolerance
reference
5V sustain reference
IMCH_PAD
Real Time Clock power
Figure 6-3 illustrates the sequence that power rails should follow as they are brought
up at Power On.
Figure 6-3. EP80579 Rail Power On Sequence
VCCPRTC¹
S u s p e n d 5 .0 V
S u s p e n d 3 .3 V
S u s p e n d 2 .5 V
S u s p e n d 1 .2 V
P S _O N #²
C o re 3 .3 V
C o re 5 .0 V
C o re 2 .5 V
C o re 1 .8 V
VTTDDR
C o re 1 .2 V
IA -3 2 c o re 1 .0 V - 1 .3 V
Figures 6-4, 6-5, 6-6, and 6-7 accompanied by Table 6-4, Table 6-5, and Table 6-6
show the relationship between the power supply rails and key reset signals upon
EP80579 power-up. In Figures 6-4 and 6-5, the terms “Core” and “Suspend” refer to
the power wells that Table 6-2 on page 162 describes.
August 2009
Order Number: 320066-003US
Intel^® EP80579 Integrated Processor Product Line Datasheet
169