PCH Pin States
108 Datasheet
SATA Interface
SATA[5:0]RXP,
SATA[5:0]RXN
Core SATA Drive Driven Off Off
SATAICOMPI Core High-Z Driven Off Off
SATA4GP/GPIO16
1
Core
External Device or External
Pull-up/Pull-down
Driven Off Off
SATA5GP/GPIO49
1
/
TEMP_ALERT#
Core
External Device or External
Pull-up/Pull-down
Driven Off Off
SATA0GP / GPIO[21]
1
Core
External Device or External
Pull-up/Pull-down
Driven Off Off
SATA1GP/GPIO19 Core Internal Pull-up Driven Off Off
SATA[3:2]GP/
GPIO[37:36]
Core Internal Pull-down Driven Off Off
SATA3COMPI Core External Pull-up Driven Off Off
USB Interface
OC[7:0]#/
GPIO[14,10,9,43:40,59]
1
Suspend External Pull-ups Driven Driven Driven
USBRBIAS# Suspend External Pull-down Driven Driven Driven
Power Management
APWROK Suspend External Circuit High Driven Driven
PWRBTN# DSW Internal Pull-up Driven Driven Driven
PWROK RTC External Circuit Driven Driven Driven
DPWROK RTC External Circuit Driven Driven Driven
RI# Suspend Serial Port Buffer Driven Driven Driven
RSMRST# RTC External RC Circuit High High High
SYS_RESET# Core External Circuit Driven Off Off
SYS_PWROK Suspend External Circuit High Driven Driven
THRMTRIP#
Core
(Processor)
External Thermal Sensor Driven Off Off
WAKE# Suspend External Pull-up Driven Driven Driven
Processor Interface
A20GATE Core External Micro controller Static Off Off
RCIN# Core External Micro controller High Off Off
System Management Interface
SMBALERT# / GPIO11 Suspend External Pull-up Driven Driven Driven
INTRUDER# RTC External Switch Driven Driven Driven
JTAG Interface
JTAG_TDI
3
Suspend Internal Pull-up High High High
JTAG_TMS
3
Suspend Internal Pull-up High High High
JTAG_TCK
3
Suspend Internal pull-down Low Low Low
Table 3-4. Power Plane for Input Signals for Desktop Configurations (Sheet 2 of 3)
Signal Name Power Well Driver During Reset S0/S1 S3 S4/S5
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