NEC POWERMATE ES Series, Service And Reference Manual

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System Configuration 2-3
Interrupt Level Assignments*
Interrupt Priority Interrupt Device
IRQ10 Shared Resource: ACPI IRQ Holder for PCI
IRQ Steering/Intel 82801AA USB Universal
Host Controller/3COM 3C920 Controller
IRQ11 Shared Resource: ACPI IRQ Holder for PCI
IRQ Steering/SCI IRQ used by ACPI
Bus/Intel 82801AA AC’97 Audio Controller-
Sigma Tel Codec/82801AA SMBus
Controller
IRQ12 WheelMouse (PS/2)
IRQ13 Numeric Data Processor
IRQ14 Primary IDE Controller/Intel 82801AA Bus
Master IDE Controller
IRQ15 Secondary IDE Controller/Intel 82801AA
Bus Master IDE Controller
* IRQ settings may vary, depending on system configuration.
Parallel Port Interrupts
The parallel port I/O interrupts are given in the following table. The table lists all of the possible
configurations but the port only uses one set.
Parallel Port Interrupts
Port Interrupt
LPT1 IRQ05
LPT2 IRQ05
LPT3 IRQ05
LPT1 IRQ07
LPT2 IRQ07
LPT3 IRQ07
Serial Port Interrupts
The interrupts for serial port 1 are given in the following table. The table lists all of the possible
configurations but the port only uses one set. The interrupts used for the port are not available
for ISA parallel ports. Also, if the serial port shares an interrupt, verify that hardware and
software added to the system can share these interrupts without problems.