Intel 6 SERIES CHIPSET - DATASHEET 01-2011 Datasheet page 82

Table 2-24. General Purpose I/O Signals (Sheet 3 of 4)
Name Type Tolerance
GPIO30
GPIO29
GPIO28
GPIO27
GPIO26
(Mobile Only)
GPIO25
(Mobile Only)
GPIO24
GPIO23
GPIO22
GPIO21
GPIO20
GPIO19
GPIO18
(Mobile Only)
GPIO17
GPIO16
GPIO15
GPIO14
GPIO13
82
Power
Well
I/O 3.3 V Suspend
I/O 3.3 V Suspend
I/O 3.3 V Suspend
I/O 3.3 V DSW
I/O 3.3 V Suspend
I/O 3.3 V Suspend
I/O 3.3 V Suspend
I/O 3.3 V Core
I/O 3.3 V Core
I/O 3.3 V Core
I/O 3.3 V Core
I/O 3.3 V Core
I/O 3.3 V Core
I/O 3.3 V Core
I/O 3.3 V Core
I/O 3.3 V Suspend
I/O 3.3 V Suspend
I/O 3.3 V Suspend
Blink
Default
Capability
Multiplexed with SUSPWRDNACK,
SUSWARN#
Desktop: Can be configured as
SUSWARN# or GPIO30 only.
Native Yes
Cannot be used as
SUSPWRDNACK.
Mobile: Used as SUSPWRDNACK,
SUSWARN#, or GPIO30
Multiplexed with SLP_LAN#
Pin usage as GPIO is determined
by SLP_LAN#/GPIO Select Soft-
GPI No
strap. When soft-strap = 1, pin
can be used as GPIO and defaults
to GP Input (Note 10)
GPO Yes Unmultiplexed
Unmultiplexed. Can be configured
GPI Yes as wake input to allow wakes
from Deep S4/S5.
Mobile: Multiplexed with
Native Yes
PCIECLKRQ4#
Mobile: Multiplexed with
Native Yes
PCIECLKRQ3#
Desktop: Can be used as
PROC_MISSING configured using
Intel ME firmware.
Mobile: Unmultiplexed
GPO Yes
NOTE: GPIO24 configuration
Native Yes Multiplexed with LDRQ1#.
GPI Yes Multiplexed with SCLOCK
GPI Yes Multiplexed with SATA0GP
Native Yes Multiplexed with PCIECLKRQ2#
GPI Yes Multiplexed with SATA1GP
Yes Mobile: Multiplexed with
Native
(Note 7) PCIECLKRQ1#
GPI Yes Mobile: Used as GPIO17 only.
GPI Yes Multiplexed with SATA4GP
GPO Yes Unmultiplexed
Native Yes Multiplexed with OC7#
Multiplexed with
HDA_DOCK_RST# (Mobile Only)
GPI Yes
(Note 4)
Desktop: Used as GPIO only
Signal Description
Description
register bits are not
cleared by CF9h reset
event.
Datasheet