5
User’ s Manual
Rev. A
As for DVD solution, the integrated 3D VGA controller also support DVD H/W
accelerator to improve the DVD playback performance.
The SiS5595 PCI system I/O integrates the PCI-to-ISA bridge with the DDMA,
PC/PCI DMA and Serial IRQ capability, the ACPI/Legacy PMU, the Data Ac-
quisition Interface, the Universal Serial Bus host/hub interface, and the ISA
bus interface which contains the ISA bus controller, the DMA controllers, the
interrupt controllers, the Timers and the Real Time Clock (RTC). It also inte-
grates the Keyboard Controller and PS/2 mouse interface that can support
keyboard power on function for users to power on system by entering the hot
key or password from keyboard.
The built-in USB controller, which is fully compliant to OHCI (Open Host Con-
troller Interface), provides two USB ports capable of running full/low speed
USB devices.
The Data Acquisition Interface offers the ability of monitoring and reporting
the environmental condition of the PC. It could monitor 5 positive analog volt-
age inputs, 2 Fan speed inputs, and one temperature input.
In addition, SiS5595 also supports ACPI function to meet Advanced Configu-
ration and Power Interface (ACPI) 1.0 specification for Windows 98 environ-
ment, it can support power-management timer, Power button, Real-time clock
alarm wake up, more sleeping state, ACPI LED for sleeping and working state,
LAN wake up, Modem Ring In wake up, and OnNow initiative function.
