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- Programmable Interrupt Controller
January 22, 2007, 3:44 am
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Programmable Interrupt Controller chip on it and see how it's
connected to the CPU. I've looked all over the board, and I don't
see anything that says 8259A or APIC. Any ideas how to find this?
Or, does anyone have any photos showing a PIC connected to a CPU?
Re: Programmable Interrupt Controller
If the ICH0 Southbridge is on your motherboard (because I'm not
certain of the chipset details)...
82801AA / 82801AB Southbridge ICH / ICH0
PDF page 3 says ICH0 Southbridge has inside it:
-Two Cascaded 82C59
-Integrated I/O APIC Capability
-15 Interrupts Support in 8259 Mode,
24 Supported in I/O APIC Mode.
-Supports Serial Interrupt Protocol"
And on PDF page 34 it explains the interrupt interface on the ICH0.