BIOS Setup Menus
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3.6 BIOS Super I/O Configuration Menu
The SIO menu is used to configure Super I/O components on the XVME 689-VR7/689. These
components commonly are serial and parallel port controllers to floppy disk and keyboard controllers.
The I/O, DMA, and IRQ assignments of each peripheral are configurable, so these values are also brought
out to the SIO Setup menu. Figure 3.6 shows the SIO Setup menu for the XVME 689-VR7/689.
System Configuration Utility
Main Exit Boot Post PnP SIO Features Firmbase Misc>
BIOS Super I/O Configuration
SCH3114 Devices
Parallel Port [Enabled]
Address [378h]
IRQ [IRQ 7]
DMA [Channel 4]
Mode [Printer]
Serial Port 1 [Enabled]
Address [3f8h]
IRQ [IRQ 4]
Serial Port 2 [Enabled]
Address [2f8h]
IRQ [IRQ 3]
Serial Port 3 [Enabled]
Address [3e8h]
IRQ [IRQ 3]
Embedded BIOS® 2000 V6.0.5 – Copyright 2006 General Software, Inc.
Figure 3-6 BIOS Super I/O Configuration Menu
The following table provides the basic types of devices that might appear in a typical SIO menu:
Parallel Port
Enable parallel (LPT/printer) port. Legacy I/O
addresses are 378h, 278h, and 3bch. IRQ7 was
originally used on the IBM PC.
Serial Port
Enable serial (COM/communications) port. Legacy
I/O addresses and IRQs are as follows:
COM1 – I/O 3f8h, IRQ4.
COM2 – I/O 2f8h, IRQ3.
COM3 – I/O 3e8h, IRQ4.
COM4 – I/O 2e8h, IRQ3.
It should be noted that these are not the only possible
addresses, but they are the ones that will ensure
compatibility with the most legacy software,
Summary of Contents for XVME-689-VR7
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