Acer TravelMate P453-M Acer TravelMate P453, P453-M, P453-MG Notebook Service - Page 53
System DMA Specification, IntelR 7 Series/C216 Chipset Family PCI Express Root Port 2
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Item Battery indicator HDD indicator Communication indicator Specification Charging Orange solid on - Battery charging with AC Blue color solid on - Battery full Orange blinking - Battery in low power state or battery abnormal Discharging Orange blinking - Battery in critical low state Orange color off - Discharging state Reflects the activities of the HDD or Card reader access Orange color if a wireless device is active System DMA Specification Hardware DMA DMA0 DMA1 DMA2 DMA3 DMA4 DMA5 DMA6 DMA7 System Function Not applicable Not applicable Not applicable Not applicable Direct memory access controller Not applicable Not Assigned Not Assigned System Interrupt Specification Hardware IRQ IRQ00 IRQ01 IRQ08 IRQ12 IRQ13 IRQ81-IRQ190 IRQ10 IRQ16 System function System timer Standard PS/2 Keyboard System CMOS/real time clock ELAN PS/2 Port Smart-Pad Numeric data processor Microsoft ACPI-Compliant System Intel(R) 7 Series/C216 Chipset Family SMBus Host Controller - 1E22 Intel(R) 7 Series/C216 Chipset Family USB Enhanced Host Controller- 1E2D Intel(R) 7 Series/C216 Chipset Family PCI Express Root Port 2 - 1E12 Intel(R) Management Engine Interface Hardware Specifications and Configurations 1-43