82801BA Datasheet, PDF (59/498 Pages) Intel Corporation – Intel 82801BA I/O Controller Hub 2 (ICH2) and Intel 82801BAM I/O Controller Hub 2 Mobile

Power Planes and Pin States
Table 3-5. Power Plane for Input Signals (Continued)
Signal Name
RI#
RSMRST#
RTCRST#
SDDREQ
SERR#
SIORDY
SMBALERT#
THRM#
VRMPWRGD
(ICH2)
VGATE /
VRMPWRGD
(ICH2-M)
Power Well
Resume I/O
RTC
RTC
Main I/O
Main I/O
Main I/O
Resume I/O
Main I/O
Main I/O
Main I/O
Driver During Reset
Serial Port Buffer
External RC circuit
External RC circuit
IDE Drive
PCI Bus Peripherals
IDE Drive
External pull-up
Thermal Sensor
CPU Voltage Regulator
CPU Voltage Regulator
C3
(ICH2-M)
Driven
High
High
Driven
Driven
Driven
Driven
Driven
Driven
Driven
S1
Driven
High
High
Static
High
Static
Driven
Driven
High
High
S3
Driven
High
High
Low
Low
Low
Driven
Low
Low
Low
S5
Driven
High
High
Low
Low
Low
Driven
Low
Low
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.
82801BA ICH2 and 82801BAM ICH2-M Datasheet
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