Interrupt Assignment - Siemens SIMATIC HMI OP37/Pro Equipment Manual

Installing Expansion Modules and Optional Equipment
5.3

Interrupt Assignment

The interrupt assignment is listed in the table below.
This information is required primarily in order to prevent conflicts between
modules (e.g. caused by using the same hardware interrupt) when using addi-
tional modules.
The 16 hardware interrupts (IRQ 0 through IRQ 15) are processed on the
OP37/Pro by two type 82C59 integrated interrupt controller.
The INT output of the slave controller is connected to the IRQ 2 input of the
master controller.
Table 5-1
NMI
IRQ 0
IRQ1
IRQ 2
IRQ 3
IRQ 4
IRQ 5
IRQ 6
IRQ 7
IRQ 8
IRQ 9
IRQ 10
IRQ 11
IRQ 12
IRQ 13
IRQ 14
IRQ 15
*
5-8
I/O addresses of interrupt controllers
List of Hardware Interrupts
RAM parity; I/O channel parity
Timer output 0, internal peripheral-device controller
(ISP)
Keyboard (output buffer full)
Interrupt of slave interrupt controller
*)
Serial interface (COM 2)
*)
V.24/V.28 interface, serial interface (COM 1)
*)
ASPC2
*)
Floppy controller
*)
Parallel printer interface 1 (LPT)
*)
Real-time clock (RTC) low active
*)
User-assignable
*)
User-assignable
*)
User-assignable
*)
PS2 mouse
Maths processor
*)
Hard disk controller; IDE interface
*)
User-assignable
These signals are fed to the I/O connectors and can be assigned to the PCMCIA interface.
Parameterized
Interrupt Vector,
Memory Address
INT 2
H
INT 8
H
INT 9
H
INT A
H
INT B
H
INT C
H
INT D
H
INT E
H
INT F
H
INT 70
H
INT 71
H
INT 72
H
INT 73
H
INT 74
H
INT 75
H
INT 76
H
INT 77
H
OP37/Pro Equipment Manual
Release 7/98