EVOC PPC-1006, Manual

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BIOS Setup
PPC-1006 · 17 ·
 APIC
Advanced programmable interrupt controller. Most motherboards above P4 level
support APIC and provide more than 16 interrupt sources, like IRQ16 - IRQ23; while
some others can have up to 28 interrupt sources, such as motherboard supporting
PCI-X. However, relevant OS are required to enable that function.
 IO Port Address
Only 16 IO address lines are designed for X86, from 0 ~ 0FFFFh; there is 64K for the
system I/O address space. In traditional ISA connector, only the foregoing 1024 (0000
~ 03FFh) are used while the ports above 0400h are used by PCI and EISA connectors.
Each peripheral will occupy portion of the space. The table below shows the I/O
connectors used in X86 platform.
Address Device Description
000h - 00Fh DMA controller #1
010h - 01Fh Motherboard resource
020h - 021h Programmable Interrupt Controller #1
022h - 03Fh Motherboard resource
040h - 043h System Timer
044h - 05Fh Motherboard resource
060h Standard 101/102 key or Microsoft natural PS/2 keyboard
061h System speaker
062h – 063h Motherboard resource
064h Standard 101/102 key or Microsoft natural PS/2 keyboard
065h - 06Fh Motherboard resource
070h - 071h Real Time Clock , NMI
072h – 07Fh Motherboard resource
080h Motherboard resource
081h - 083h DMA controller #2
084h - 086h Motherboard resource