System Dma Specifications; System Interrupt Specifications - HP 2730p - EliteBook - Core 2 Duo 1.86 GHz Maintenance And Service Manual

System DMA specifications

Hardware
DMA0
DMA1*
DMA2*
DMA3
DMA4
DMA5*
DMA6
DMA7
*PC Card controller can use DMA 1, 2, or 5.

System interrupt specifications

Hardware IRQ
IRQ0
IRQ1
IRQ8
IRQ12
IRQ13
IRQ16
IRQ17
IRQ18
IRQ19
IRQ20
IRQ21
IRQ22
*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.
✎
For operating systems after Windows 2000, APIC (Advanced programming interrupt controller) is used.
Maintenance and Service Guide
DMA System function
Not applicable
Not applicable
Not applicable
Not applicable
Direct memory access controller
Not applicable
Not assigned
Not assigned
System function
System timer
Standard 101-/102-Key or Microsoft® Natural Keyboard
System CMOS/real-time clock
Synaptics PS/2 TouchPad
Numeric data processor
Intel® ICH9 Family USB universal Host Controller 2937
Mobile Intel 4 Series Express Chipset Family
High Definition Audio Controller
Intel® ICH9 Family USB universal Host Controller 2938
Marvel Yukon 88E8072 PCIE-Gigabit Ethernet Controller
Intel® ICH9 Family USB universal Host Controller 2939
Intel® ICH9 Family USB universal Host Controller 2936
Intel® ICH9 Family USB2 Enhanced Controller 293C
Intel® ICH9 Family USB2 Enhanced Controller 293A
Intel® ICH9 Family USB universal Host Controller 2934
Intel® ICH9M-E/M SATA AHCI Controller
Intel® ICH9 Family USB universal Host Controller 2935
Specifications
6–3