EVOC M50 Series, Manual, Page: 210 / 250

BIOS Setup
· 80 · M50 SERIES
This option is used to restore defaults.
7.8 System Resource Managed by UEFI under X86 Platform
We define three kinds of system resources here: I/O port address, IRQ interrupt
number and Memory address.
 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
0000-001F Direct memory accdess controller
0000-0CF7 PCI bus
0020-0021 Programmable interrupt controller
0024-0025 Programmable interrupt controller
0028-0029 Programmable interrupt controller
002C-002D Programmable interrupt controller
002E-002F Motherboard resources
0030-0031 Programmable interrupt controller
0034-0035 Programmable interrupt controller
0038-0039 Programmable interrupt controller
003C-003D Programmable interrupt controller
0040-0043 System timer
004E-004F Motherboard resources