Intel 440GX ユーザーズマニュアル

Intel

440GX AGPset Design Guide

3-17

Design Checklist

IOCHCK#

Connected to ISA slots. 4.7K ohm pull-up to VCC.

IOCHRDY

Connected to ISA slots and Ultra I/O. 1K ohm pull-up to VCC.

IOCS16#

Connected to ISA slots. 1K ohm pull-up to VCC.

IOR#

Connected to ISA slots, Ultra I/O, LM79. 8.2K ohm pull-up to VCC.

IOW#

Connected to ISA slots, Ultra I/O, LM79. 8.2K ohm pull-up to VCC.

IRDY#

2.7K ohm pull-up to 5V or 10K ohm pull-up to 3V. Connect between 82443GX,
PCI slots, and PIIX4E.

IRQ0 / GPO14

UP: No connect. DP: Connected to INTIN2 of IOAPIC.

IRQ8#

8.2K ohm pull-up to 3VSB. DP: Connected to IOAPIC through tri-state buffer.

IRQ[1,3:7]

8.2K ohm pull-up to VCC. Connected to ISA slots and Ultra I/O.

DP: Connected to IOAPIC.

IRQ[15:14]

Connected to ISA slots, Ultra I/O, IDE. 8.2K ohm pull-up to VCC.

DP: Connected to IOAPIC.

IRQ[9:12]

Connected to ISA slots, Ultra I/O. 8.2K ohm pull-up to VCC.

DP: Connected to IOAPIC.

KBCCS# / GPO26

No Connect.

LA[17:23]

Connected to ISA slots. 8.2K ohm pull-up to VCC.

LID / GPI10

8.2K ohm pull-down if LID is not used. Connect to wake on LAN Header if used.

MCCS#

No connect.

MEMCS16#

Connected to ISA slots. 1K ohm pull-up to VCC.

MEMR#,

MEMW#

Connected to ISA slots and Flash. 8.2K ohm pull-up to VCC.

DP: Connected to IOAPIC.

NMI

Part of CPU/bus frequency circuit. 2.7K ohm pull-up to 3V.

OCx

Driven by USB overcurrent detection voltage divider.

OSC

Connect to CK100.

PAR

Connect to PCI slots and 82443GX.

PCICLK

Connect to CK100.

PCIRST#

Connect to AGP, PCI, and 82443GX.

PCI_STP# / GPO18

No connect, or connected to CK100 with 10K ohm pull-up to 3VSB.

PCS1#