5
5
4
4
3
3
2
2
1
1
D
D
C
C
B
B
A
A
General Purpose I/O Spec.
FWH
ICH2
GPIO 0
GPIO 1
GPIO 5
GPIO 6
GPIO 7
GPIO 8
GPIO 9
GPIO 10
GPIO 2~4
GPIO 11
GPIO 12
GPIO 13
GPIO 14~15
GPIO 16
GPIO 17
GPIO 18
GPIO 21
GPIO 22
GPIO 23
GPIO 24
GPIO 25
GPIO 26
GPIO 27
GPIO 28
GPIO 29~31
I
I
I
I
I
I
I
I
I
I
I
I
I
O
O
O
O
O
O
O
O
OD
I/O
I/O
I/O
Non Connect
Non Connect
Non Connect
AC97 Enabled/Disabled
Non Connect
Non Connect
Non Connect
Non Connect
BIOS Locked/Unlocked
Non
Not Implemented
Not Implemented
Not Implemented
None
LAN Wake Up
AC'97 Serial Data In
External SMI
LPC PME
Non
Non
Non
I
I
I
GPI 0
GPI 1
GPI 2
GPI 3
Reserved
ATA IDE 1 Detect
ATA IDE 2 Detect
GPIO Pin
Type Function
Function
Type
GPIO Pin
Not Implemented
Audio 6 channel control
non
Reserved
GPIO 19
GPIO 20
O
O
Non
INTC#
INTA#
INTA#
INTB#
INTD#
AD18
INTA#
IDSEL
INTC#
INTD#
PCI Slot 1
ICH INT Pin
PCI Slot 2
INTB#
INTC#
INTD#
AD16
INTB#
PCI Slot 3
DEVICE
AD17
PCI Audio
INTC#
INTD#/INTE#
INTA#
INTB#
AD23
I/OD
GP24
GP32
GP33
GP34
GPIO Pin
Type Function
DLED-Super I/O
DLED1
DLED2
DLED3
DLED4
I/OD
I/OD
I/OD
I
PCI Lan
INTC#/INTF#
INTD#
INTA#
INTB#
AD22
Not Implemented
Not Implemented
MS-6507
1.0
GPIO Spec.
3
36
Monday, September 24, 2001
Title
Document Number
Rev
Last Revision Date:
Sheet
of
Micro-Star