Artesyn ATCA-7470 Installation and Use (October 2014) - Manual (Page 142)

Maps and Registers
ATCA-7470 Installation and Use (6806800P15K) 142
6.1.1 Intel DH8900CC PCH NON-APIC (PIC mode) D31:F0 Interrupt
Mapping
Table 6-1 Non-APIC (PIC mode / 8259 Mode) Interrupt Mapping
8259
IRQ
Typical Interrupt Source Interrupt Source
Master
0 Internal 8254 Counter 0, HPET #0
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
0 Internal RTC Internal RTC, HPET #1
1 Generic IRQ9 via SERIRQ, SCI, TCO, or PIRQ#
2 Generic IRQ10 via SERIRQ, SCI, TCO, or PIRQ#
3 Generic IRQ11 via SERIRQ, SCI, TCO, or PIRQ# or HPET #2
4 PS/2 Mouse IRQ11 via SERIRQ, SCI, TCO, or PIRQ# or HPET #3
5 Internal State Machine output based on processor
FERR# assertion. May optionally be used for SCI
or TCO interrupt if FERR# not needed.
6 SATA SATA Primary (legacy mode), or via SERIRQ or
PIRQ#
7 SATA SATA Secondary (legacy mode), or via SERIRQ or
PIRQ#