Reference Guide
CSName See Common Properties of Classes string
CreationClassName See Common Properties of Classes string
IRQNumber Identies the interrupt request number. uint32
Availability Indicates the availability of the IRQ. Values
for the Availability property are as follows:
1- Other
2- Unknown
3- Available
4 - In use/not available
5- In use and available
uint16
TriggerLevel Indicates if the interrupt is triggered by the
hardware signal going high or low. Values for
the TriggerLevel property are as follows:
1- Other
2- Unknown
3- Active low
4- Active high
uint16
TriggerType Indicates if edge (value=4) or level triggered
(value=3) interrupts occur.
1- Other
2- Unknown
3- Level
4- Edge
uint16
Shareable Indicates if the IRQ can be shared. A value
of TRUE indicates that the IRQ can be
shared.
Boolean
Hardware Indicates if the interrupt is hardware- or
software-based. (A value of TRUE indicates
that the interrupt is hardware based.) On a
personal computer, a hardware IRQ is a
physical wire to a programmable interrupt
controller (PIC) chip set through which the
microprocessor can be notied of time
critical events. Some IRQ lines are reserved
for standard devices such as the keyboard,
diskette drive, and the system clock. A
software interrupt is a programmatic
mechanism to allow an application to get the
attention of the processor.
Boolean
58 CIM_LogicalElement