Intel 440GX Design Manual page 77

Table 3-7. PIIX4E Connectivity (Sheet 2 of 4)
Signal Names
IOCHCK#
IOCHRDY
IOCS16#
IOR#
IOW#
IRDY#
IRQ0 / GPO14
IRQ8#
IRQ[1,3:7]
IRQ[15:14]
IRQ[9:12]
KBCCS# / GPO26
LA[17:23]
LID / GPI10
MCCS#
MEMCS16#
MEMR#,
MEMW#
NMI
OCx
OSC
PAR
PCICLK
PCIRST#
PCI_STP# / GPO18
PCS1#
PCS3#
PDA[2:0]
PDD[15:0]
PDDACK#
PDIOR#
PDIOW#
PDREQ
PGCS#0
PGCS#1
®
Intel 440GX AGPset Design Guide
Connected to ISA slots. 4.7K ohm pull-up to VCC.
Connected to ISA slots and Ultra I/O. 1K ohm pull-up to VCC.
Connected to ISA slots. 1K ohm pull-up to VCC.
Connected to ISA slots, Ultra I/O, LM79. 8.2K ohm pull-up to VCC.
Connected to ISA slots, Ultra I/O, LM79. 8.2K ohm pull-up to VCC.
2.7K ohm pull-up to 5V or 10K ohm pull-up to 3V. Connect between 82443GX,
PCI slots, and PIIX4E.
UP: No connect. DP: Connected to INTIN2 of IOAPIC.
8.2K ohm pull-up to 3VSB. DP: Connected to IOAPIC through tri-state buffer.
8.2K ohm pull-up to VCC. Connected to ISA slots and Ultra I/O.
DP: Connected to IOAPIC.
Connected to ISA slots, Ultra I/O, IDE. 8.2K ohm pull-up to VCC.
DP: Connected to IOAPIC.
Connected to ISA slots, Ultra I/O. 8.2K ohm pull-up to VCC.
DP: Connected to IOAPIC.
No Connect.
Connected to ISA slots. 8.2K ohm pull-up to VCC.
8.2K ohm pull-down if LID is not used. Connect to wake on LAN Header if used.
No connect.
Connected to ISA slots. 1K ohm pull-up to VCC.
Connected to ISA slots and Flash. 8.2K ohm pull-up to VCC.
DP: Connected to IOAPIC.
Part of CPU/bus frequency circuit. 2.7K ohm pull-up to 3V.
Driven by USB overcurrent detection voltage divider.
Connect to CK100.
Connect to PCI slots and 82443GX.
Connect to CK100.
Connect to AGP, PCI, and 82443GX.
No connect, or connected to CK100 with 10K ohm pull-up to 3VSB.
Connected to IDE connector through 33 ohm series resistor.
Connected to IDE connector through 33 ohm series resistor.
Connected to IDE connector through 33 ohm series resistors.
Connected to IDE connector through 33 ohm series resistors. It is
recommended that PDD[7] have a 10K ohm pull-down resistor.
Connected to IDE connector through 33 ohm series resistor.
Connected to IDE connector through 33 ohm series resistor.
Connected to IDE connector through 33 ohm series resistor.
Connected to IDE through 33 ohm series resistor. 5.6K ohm pull-down on the
PIIX4E side of the series resistor.
No connect.
8.2K ohm pull-up to VCC3. Connected to LM79.
Design Checklist
Connection
3-17