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UNO-2174A/2178A User Manual 28

Appendix A System Settings and Pin

Assignments

A.1 System I/O Address and Interrupt Assignment

Table A.1: UNO-2174A/2178A Interrupt Assignments

Interrupt No. Interrupt Source

NMI Parity Error Detected

IRQ 0 Interval timer

IRQ 1 Keyboard

IRQ 2 Interrupt from controller 2 (cascade)

IRQ 3 COM 2

IRQ 4 COM 1

IRQ 5 COM 4

IRQ 6 Diskette controller (FDC)

IRQ 7 COM 6

IRQ 8 Real-time clock

IRQ 9 Microsoft ACPI-Compliant System

IRQ 10 COM 3

IRQ 11 COM 5

IRQ 12 Microsoft PS/s Mouse

IRQ 13 INT from co-processor

IRQ 14 Primary IDE

IRQ 15 Secondary IDE

1 2 ... 31 32 33 34 35 36 37 38 39 40 41 42 43 44

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