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Chapter 3 ICES 120 ETX Module Reference

NICE 3200, NICE 3220, ICES 101, ICES 120, ICEB 3200 User Manual

3.6 IRQ Assignments

Interrupt request lines let peripherals communicate with the CPU for

the function required. The following list shows the IRQs used

Table 3.1: IRQ assignments

IRQ0 Timer

IRQ1 KBC

IRQ2 Cascade

IRQ3 COM2

IRQ4 COM1

IRQ5 COM4

IRQ6 FDC

IRQ7 LPT

IRQ8 RTC

IRQ9 Free (reserved for PCI)

IRQ10 COM3

IRQ11 Free(reserved for PCI)

IRQ12 PS/2 Mouse

IRQ13 Math Co-processor

IRQ14 IDE1

IRQ15 IDE2

Also have three On-board PCI IRQ and add on card IRQ be as-

signed , the IRQ resource be dynamic

Assigned by BIOS.

3.7 PCI Device interrupt and BUS Assignments

The ICES 120 ETX module supports PCI expansion fully compliant

with the PCI specication.

Table 3.2: PCI device interrupts

Chipset Cong.

BUS / DE-

VIC/FUNC-

TION

PCI INT# IDSEL Special

feature de-

scription

AMD Geode

Castle

0 / 1 / 1 INTA Host-Hub

Interface

Bridge

AMD

CS5535/5536

0 / 15 /

4,5

USB 1.1/2.0

Controller

ETX PCI(1) 0 / 9 /0 ABCD AD19 ETX

ETX PCI(2) 0 / 10 /0 BCDA AD20 ETX

ETX PCI(3) 0 / 11 /0 CDAB AD21 ETX

ETX PCI(4) 0 / 12 /0 DABC AD22 ETX

VT6105G 0 / 13 /0 ABCD AD23 LAN

IT8888G 0 / 14 /0 AD24 PCI to ISA

BRIDGE