System Interrupt Specifications; System I/O Address Specifications - HP G61-306 Maintenance And Service Manual

Specifications

System interrupt specifications

Hardware IRQ
IRQ0
IRQ1
IRQ2
IRQ4
IRQ6
IRQ7*
IRQ8
IRQ9*
IRQ12
IRQ13
IRQ14
IRQ15
*Default configuration; audio possible configurations are IRQ5, IRQ7, IRQ9, IRQ10, or none.
✎
PC Cards may assert IRQ3, IRQ4, IRQ5, IRQ7, IRQ9, IRQ10, IRQ11, or IRQ15. Either the infrared or the serial port
may assert IRQ3 or IRQ4.

System I/O address specifications

I/O address (hex)
000 - 00F
010 - 01F
020 - 021
022 - 024
025 - 03F
02E - 02F
040 - 05F
044 - 05F
060
061
062 - 063
064
065 - 06F
070 - 071
072 - 07F
080 - 08F
090 - 091
6–6
System function
System timer
Standard 101-/102-Key or Microsoft® Natural Keyboard
Cascaded
COM1
Diskette drive
Parallel port
System CMOS/real-time clock
Microsoft ACPI-compliant system
Synaptics PS/2 TouchPad
Numeric data processor
Primary IDE channel
Secondary IDE channel
System function (shipping configuration)
DMA controller no. 1
Unused
Interrupt controller no. 1
Opti chipset configuration registers
Unused
87334 "Super I/O" configuration for CPU
Counter/timer registers
Unused
Keyboard controller
Port B
Unused
Keyboard controller
Unused
NMI enable/RTC
Unused
DMA page registers
Unused
(Continued)
Maintenance and Service Guide