EP80579 Datasheet, PDF (1744/1916 Pages) Intel Corporation – Intel® EP80579 Integrated Processor Product Line

Intel^® EP80579 Integrated Processor
Table 48-9. PCI Express Interface Signals (Sheet 4 of 4)
Signal Name
IO Type
PEA_ICOMPI
Analog
PEA_ICOMPO
Analog
TOTAL
Direction
Ball
Count
I
1
I
1
37
External
Pull-Up/
Down
[Ohms]
BSC/
XOR
Signal Description Normal/Alternate Mode
XOR
PCI Express Port A Compensation: Used to
calibrate the PCI Express high speed serial
input/output buffers
XOR
PCI Express Port A Compensation: Used to
calibrate the PCI Express high speed serial
input/output buffers.
48.4.3
48.4.3.1
Integrated I/O Controller Hub (IICH)
Real Time Clock
Table 48-10. Real Time Clock Interface Signals
Signal Name
RTCX1
RTCX2
RTEST#
IO Type
Analog
Analog
LVTTL,3.3V
TOTAL
Direction
Ball
Count
I
1
O
1
I
1
3
External
Pull-Up/
Down
[Ohms]
BSC/
XOR
Signal Description Normal/Alternate Mode
RTC Crystal Input 1: Connected to the 32.768
KHz crystal. If no external crystal is used, then
RTCX1 can be driven with the desired clock rate.
RTC Crystal Input 2: Connected to the 32.768
KHz crystal. If no external crystal is used, then
RTCX2 should be left floating.
RTC Test Enable: Oscillator test enable input. An
external RC circuit is required to drive this test
input.
48.4.3.2 General Purpose I/O (GPIO) and Interrupts
Table 48-11. General-Purpose IO Signals (Sheet 1 of 5)
Signal Name
GPIO[0]
GPIO[1]
GPIO[6]
GPIO[7]
GPIO[8]
IO Type
LVTTL,3.3V
LVTTL,3.3V
LVTTL,3.3V
LVTTL,3.3V
LVTTL,3.3V
Direction
Ball
Count
I
1
I
1
I
1
I
1
I
1
External
Pull-Up/
Down
[Ohms]
BSC/
XOR
Signal Description Normal/Alternate Mode
BSC
BSC
BSC
BSC
BSC
General Purpose IO 0: Reside in the Core power
well.
General Purpose IO 1: Reside in the Core power
well.
General Purpose IO 6: Resides in the Core
power well. This pin is not available if SMI mode
is enabled.
General Purpose IO 7: Resides in the Core
power well.
General Purpose IO 8: Resides in the Suspend
power well.
Intel^® EP80579 Integrated Processor Product Line Datasheet
1744
August 2009
Order Number: 320066-003US