Artesyn ATCA-7365 Installation and Use (May 2014) - Manual (Page 162)

Maps and Registers
ATCA-7365 Installation and Use (6806800K65M) 162
Table 6-1 Non-APIC (PIC mode / 8259 Mode) Interrupt Mapping
8259
IRQ
Typical Interrupt Source Interrupt Source
Master
0 Internal 8254 Counter 0, Timer 0 (HPET)
1 Keyboard IRQ1 via SERIRQ
2 Internal Slave 8259 INTR output
3 Serial Port A IRQ3 via SERIRQ, PIRQ#
4 Serial Port B IRQ4 via SERIRQ, PIRQ#
5 Parallel/Generic IRQ5 via SERIRQ, PIRQ#
6 Floppy IRQ6 via SERIRQ, PIRQ#
7 Parallel/Generic IRQ7 via SERIRQ, PIRQ#
Slave
8 Internal RTC Internal RTC, Timer 1 (HPET)
9 Generic IRQ9 via SERIRQ, SCI, TCO, or PIRQ#
10 Generic IRQ10 via SERIRQ, SCI, TCO, or PIRQ#
11 Generic IRQ11 via SERIRQ, SCI, TCO, or PIRQ# or
Timer#2 (HPET)
12 PS/2 Mouse IRQ11 via SERIRQ, SCI, TCO, or PIRQ# or
Timer#3 (HPET)
13 Internal State Machine output based on processor
FERR# assertion. May optionally be used for SCI
or TCO interrupt if FERR# not needed.
14 SATA SATA Primary (legacy mode), or via SERIRQ or
PIRQ#
15 SATA SATA Secondary (legacy mode), or via SERIRQ or
PIRQ#
Table 6-2 APIC Mode Interrupt Mapping
IRQ Interrupt Source
0 Cascade from 8259 1
1
2 8254 Counter 0, Timer 0 (legacy mode)