User Guide • SC3-LARGO • CompactPCI
®
Serial CPU Board • Intel
®
Core
TM
5xxx Processor
GPIO Usage QM87 PCH
GPIO Type Voltage
1)
Function Description
63 O +V3.3A SLP_S5# Multiplexed with chipset internal function
64 O +V3.3S CLKOUT_FLEX1 14.318MHz Clock Source
65-67 O +V3.3A N/A Not connected on SC3
68-71 I +V3.3S BOARD_CFG Board Configuration Jumpers BOARD_CGF[0:3]
72 I +V3.3A N/A Not used on SC3 (pulled via resistor to +3.3V)
73 I +V3.3A PCIE_CLK_REQ0# Ethernet Controller NC1 Clock Request
74-75 I +V3.3A N/A Not used on SC3 (pulled via resistors to +3.3V)
1)
S=Core Voltage (active in state S0 only), A=Standby Voltage
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