Parallel Port Interrupts - NEC POWERMATE CT 815 Service And Reference Manual

Parallel Port Interrupts

The parallel port I/O interrupts are given in the following table. The table lists all the possible
configurations but the port only uses one set. Any interrupts used for the built-in parallel port are
not available for ISA parallel ports.
Interrupt Level Assignments
Interrupt
Assignment* Interrupt Device
IRQ09 ACPI IRQ Holder for PCI IRQ Steering
IRQ09 Intel 82801AA USB Universal Host Controller
IRQ10 ACPI IRQ Holder for PCI IRQ Steering
IRQ10 Intel 82801BA AC'97 Audio Controller
IRQ10 Intel 82801BA SMBus Controller
IRQ10 SCI IRQ used by ACPI bus
IRQ11 ACPI IRQ Holder for PCI IRQ Steering
IRQ11 Intel 815E Chipset Graphics Driver
IRQ12 WheelMouse
IRQ13 Numeric Data Processor
IRQ14 Intel 82801BA Bus Master IDE Controller
IRQ14 Primary IDE Controller (dual fifo)
IRQ15 Intel 82801BA Bus Master IDE Controller
IRQ15 Secondary IDE Controller (dual fifo)
* IRQ assignments may vary, depending on system configuration.

Parallel Port Interrupts

Port
LPT1
LPT2
LPT3
LPT1
LPT2
LPT3
Interrupt
IRQ05
IRQ05
IRQ05
IRQ07
IRQ07
IRQ07
System Configuration 2-3