Interface Submodules
13-7
S7-400, M7-400 Programmable Controllers Module Specifications
A5E00069467-07
13.3.2 Addressing, Interrupts, and Submodule ID
Addressing
Addressing corresponds to the AT standard.
The following addresses are occupied by the IF 962-VGA interface submodule:
Memory addresses: A0000
H
to C7FFF
H
I/O addresses: 060
H
to 06F
H
, 3B0
H
to 3BB
H
, 3BF
H
to 3DF
H
Interrupt Request
The interface submodule supplies the following interrupts:
• IRQ a: Keyboard interrupt
• IRQ b: Mouse interrupt (trackball)
• IRQ c: VGA interrupt
The BIOS routes these interrupts to ISA interrupts in accordance with Table 13-6.
Table 13-6 Interrupt Assignments of the IF 962-VGA Interface Submodule
Interrupt Source of the Interface Submodule
ISA Interrupt
Keyboard IRQ a IRQ 1
Mouse (track ball) IRQ b IRQ 12
VGA IRQ c Can be set in the BIOS setup
Submodule ID
The IF 962-VGA interface submodule has the submodule ID 81
H
.
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