NH82801DBSL8DE 869490 Intel, NH82801DBSL8DE 869490 Datasheet - Page 63
NH82801DBSL8DE 869490
Manufacturer Part Number
NH82801DBSL8DE 869490
Description
Manufacturer
Intel
Datasheet
1.NH82801DBSL8DE_869490.pdf
(587 pages)
Specifications of NH82801DBSL8DE 869490
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3.5
Intel
®
Table 3-5. Power Plane for Input Signals (Sheet 1 of 2)
82801DB ICH4 Datasheet
Power Planes for Input Signals
Table 3-5
the signal at various times. Valid states include:
High
Low
Static: Will be high or low, but will not change
Driven: Will be high or low, and is allowed to change
Running: For input clocks
A20GATE
AC_BIT_CLK
AC_SDIN[2:0]
APICCLK
CLK14
CLK48
CLK66
EE_DIN
FERR#
INTRUDER#
IRQ[15:14]
LAN_CLK
LAN_RXD[2:0]
LDRQ[0]#
LDRQ[1]#
OC[5:0]#
PCICLK
PDDREQ
PIORDY
PME#
PWRBTN#
PWROK
RCIN#
REQ[0:5]#
REQ[B:A]#
RI#
Signal Name
shows the power plane associated with each input signal, as well as what device drives
Power Well
Resume I/O
Resume I/O
Resume I/O
Resume I/O
Resume I/O
Resume I/O
Resume I/O
Resume I/O
Main Logic
Main I/O
Main I/O
Main I/O
Main I/O
Main I/O
Main I/O
Main I/O
Main I/O
Main I/O
Main I/O
Main I/O
Main I/O
Main I/O
CPU I/O
Main I/O
RTC
RTC
LAN Connect Component
LAN Connect Component
External Microcontroller
External Microcontroller
EEPROM Component
System Power Supply
Driver During Reset
External Pull-Ups
Serial Port Buffer
Clock Generator
Clock Generator
Clock Generator
Clock Generator
External Pull-Up
Clock Generator
PC/PCI Devices
External Switch
Internal Pull-Up
Internal Pull-Up
AC ’97 Codec
AC ’97 Codec
LPC Devices
LPC Devices
IDE Device
IDE Device
PCI Master
IDE
Intel
®
ICH4 Power Planes and Pin States
Running
Running
Running
Running
Running
Driven
Driven
Driven
Driven
Driven
Driven
Driven
Driven
Driven
Driven
Driven
Static
Static
Static
Static
Static
High
High
High
Low
Low
S1
Driven
Driven
Driven
Driven
Driven
Driven
Driven
Driven
High
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
S3
Driven
Driven
Driven
Driven
Driven
Driven
Driven
Driven
High
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
S5
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