Siemens SIMATIC PC 670 Equipment Manual page 104

Configuring the Computing Unit in BIOS Setup
Large Disk
Access Mode
Memory Gap at
15 MByte
Submenu"COM/LPT Configuration"
Figure 5-10 "COM/LPT Configuration" Submenu
The resources used by an interface are released when you disable the interface in
question.
The I/O addresses and interrupts are preassigned to be operated as COM1,
COM2 and LPT1 and we recommend you use them accordingly.
5-16
[DOS] The drive tables are adapted for DOS access operations
in accordance with Enhanced IDE.
[OTHER] The tables are not adapted.
[Disabled] The complete onboard RAM memory is available.
[Enabled] A 1MB area of the RAM above 15MB
(Addresses F0 0000 – FF FFFF) can be used by ISA
expansion cards.
PhoenixBIOS Setup Utility
Advanced
COM/LPT Configuration
Internal COM 1:
Base I/O address:
Interrupt:
Internal COM2:
Base I/O address:
Interrupt:
Internal LPT1:
Mode:
Base I/O address:
Interrupt:
F1 Help Select Item
ESC Exit Select Menu
Item Specific Help
Configure serial port A
[Enabled]
using options:
[3F8]
[IRQ 4]
[Disabled]
[Enabled]
No configuration
[2F8]
[IRQ 3]
[Enabled]
User configuration
[Enabled]
[Output only]
[Auto]
[378]
BIOS or OS chooses
[IRQ 7]
configuration
[OS Controlled]
Displayed when
controlled by OS
+ / – Change Values F9
Enter Select
Sub-Menu F10
Panel PC 670 Computing Unit, Equipment Manual
Release 04/02
Setup Defaults
Save and Exit