82801CA Datasheet, PDF (61/521 Pages) Intel Corporation – I/O Controller Hub 3-S (ICH3-S)

Power Planes and Pin States
Table 3-5. Power Plane for Input Signals (Continued)
Signal Name
SDDREQ
SERR#
SIORDY
SMBALERT#
THRM#
USBRBIAS
VRMPWRGD
Power Well
Main I/O
Main I/O
Main I/O
Resume I/O
Main I/O
Resume I/O
Main I/O
Driver During Reset
IDE Drive
PCI Bus Peripherals
IDE Drive
External pull-up
Thermal Sensor
External Pull-down
CPU Voltage Regulator
S1
Static
High
Static
Driven
Driven
Used
High
S3
Low
Low
Low
Driven
Low
Used
Low
S5
Low
Low
Low
Driven
Low
Used
Low
NOTES:
1. LAN Connect and EEPROM signals will either be “Driven” or “Low” in S3–S5 states depending upon whether
or not the LAN power planes are active.
Intel^® 82801CA ICH3-S Datasheet
3-61