Download Siemens SIMATIC Box PC 620 Technical data

Hardware Information
I/O Adresses of the Interrupt Controllers
Interrupt
Assignment
Parameterized
interrupt vector,
memory
address
SMI
System management interrupt, cannot be masked
-
NMI
Expansion slots Signal IO Channel Check2
INT 2 H
IRQ 0
Interner Timer (system clock)
INT 8 H
IRQ 1
Keyboard
INT 9 H
IRQ 2
Cascaded (slave interrupt controller)
INT A H
IRQ 3 *)
Serial port 2 ( COM2/ IRDA ) [can be cleared in setup]
INT B H
IRQ 4 *)
Serial por 1 (COM1/TTY) [can be cleared in setup]
INT C H
IRQ 5 **)
Cardbus Controller
INT D H
IRQ 6 *)
Floppy Controller
INT E H
IRQ 7 *)
Parallel Port 1 (parallel printer port LPT1/EPP/ECP) [can be
cleared in setup]
INT F H
IRQ 8
Battery-backed real-time clock (RTC)
INT 70 H
IRQ 9
VGA controller [generally not used]
INT 71 H
IRQ 10
Cardbus controller
INT 72 H
IRQ 11 *)
Safecard On Motherboard
INT 73 H
IRQ 12 *) PS/2 mouse or trackball in keyboard.
Can be cleared in setup, if the mouse or trackball function is
not required.
INT 74 H
IRQ 13
INT 75 H
Math. Coprozessor error
IRQ 14
IDE-Interface (primary)
IRQ 15 *) IDE-Controller ( secondary)
INT 76 H
INT 77 H
Do not use interrupts already assigned in the system.
*)
These components can be disabled via the BIOS Setup. The functions are then no
longer available and the resources freed for other components.
**)
The onboard port is Plug and Play capable, the occupied resources are administered
by the BIOS.
SIMATIC Box PC 620 Manual
C79000-G7076-C639-02
8-9