rtd cpuModule CMA22M Series, Руководство пользователя

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60 CMA22M cpuModule BDM-610000069 Rev A
Hardware Interrupts
The CMA22M cpuModule supports the standard PC interrupts listed in Table 40. Interrupts not in use by
hardware on the cpuModule itself are listed as available. Similarly, if the operating system is using APIC, more
IRQs will be available.
Note If you add any expansion modules or other peripherals to the system, you must ensure they do not
use interrupts needed by the cpuModule, or malfunctions will occur.
Table 40 Hardware Interrupts Used on the CMA22M cpuModule
Interrupt Normal Use
0 Timer 0
1 Keyboard
2 Cascade of IRQ 8–15
3 COM2
4 COM1
5 Available
6 Available
7 Available
8 Real Time Clock
9 Available, routed to IRQ 2
10 Available
11 Available
12 Mouse
14
1
1. IRQs 14 and 15 may be available if the SATA controller is not
configured in Compatability Mode
SATA hard disk
15
1
SATA Disk Chip socket
Note The cpuModule has onboard PCI devices that will claim IRQ lines. In some instances, a PCI device
will claim an IRQ line that is required by a legacy device. To reserve an IRQ for a legacy device, refer to the
PnP/PCI Configuration Setup fields in the BIOS.
Note A device’s hardware interrupt will be available for use if the given device is not present in the system
and the device is disabled in Setup.