MSI IB-945GC - Manual (Page 56)

4-6
System Resources
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ICH7R GPIO
Pin GPIO Type Multiplexed with Power Connect
AB18 GPIO0 I/O BM_BUSY# VCC3 NC
C8 GPIO1 I/O REQ[5]# VCC5 #EN485_COM4
G8 GPIO2 I/OD PIRQE# VCC5 EN232_COM3
F7 GPIO3 I/OD PIRQF# VCC5 EN232_COM4
F8 GPIO4 I/OD PIRQG# VCC5 #EN422_COM3
G7 GPIO5 I/OD PIRQH# VCC5 #EN422_COM4
AC21 GPIO6 I/O Unmultiplexed VCC3 ATADET0
AC18 GPIO7 I/O Unmultiplexed VCC3 NC
E21 GPIO8 I/O Unmultiplexed 3VSB NC
E20 GPIO9 I/O Unmultiplexed 3VSB NC
A20 GPIO10 I/O Unmultiplexed 3VSB NC
B23 GPIO11 I/O SMBALERT# 3VSB SMBALERT#
F19 GPIO12 I/O Unmultiplexed 3VSB SIO_PME#
E19 GPIO13 I/O Unmultiplexed 3VSB NC
R4 GPIO14 I/O Unmultiplexed 3VSB NC
E22 GPIO15 I/O Unmultiplexed 3VSB NC
AC22 GPIO16 I/O DPRSLPVR VCC3 NC
D8 GPIO17 I/O GNT5# VCC3 PGNT#5
AC20 GPIO18 I/O STPPCI# VCC3 NC
AH18 GPIO19 I/O SATA1GP VCC3 SATA1GP
AF21 GPIO20 I/O STPCPU# VCC3 NC
AF19 GPIO21 I/O SATA0GP VCC3 SATA0GP
A13 GPIO22 I/O REQ4# VCC3 PREQ#4
AA51 GPIO23 I/O LDRQ1# VCC3 NC
B3 GPIO24 I/O Unmultiplexed 3VSB NC
D20 GPIO25 I/O Unmultiplexed 3VSB BIOS_WP#
A21 GPIO26 I/O Unmultiplexed 3VSB NC