Specifications

INTEL OEM PRODUCTS AND SERVICES DIVISION PRELIMINARY - REV 0.1

Classic/PCI i486 Baby-AT Motherboard Technical Product Summary

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APPENDIX G

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BOARD INTERRUPTS & DMA

Interrupt Request

System Resource

NMI

Parity Error

0 Reserved, Interval Timer

1 Reserved, Keyboard buffer full

2 Reserved, Cascade interrupt from slave PIC

3 Serial Port 2

4 Serial Port 1

5 Parallel Port 2

6 Floppy

7 Parallel Port 1

8 Real Time Clock

9 User available

10 User available

11 User available

12 On-board Mouse Port if enabled, else user available

13 Reserved, Math coprocessor

14 IDE if enabled

15 User available

Table G-1. Classic/PCI i486 Baby-AT Interrupt Map

DMA Channel

Data Width

System Resource

8-or 16-bits

Open

1 8-or 16-bits Open - Normally used for LAN

2 8-or 16-bits Floppy

3 8-or 16-bits IDE

4 Reserved - Cascade channel

5 16-bits Open

6 16-bits Open

7 16-bits Open

Table G-2. Classic/PCI i486 Baby-AT DMA Map