Integrated Graphics; Motion Video Controller; Interrupt Level Assignments - NEC POWERMATE VE - SERVICE MANUAL 08-1996 Service Manual

1-10 Technical Information
Interrupt Priority
IRQ00
IRQ01
IRQ02
IRQ03
IRQ04
IRQ05
IRQ06
IRQ07
IRQ08
IRQ09
IRQ10
IRQ11
IRQ12
IRQ13
IRQ13
IRQ14
IRQ15

Integrated Graphics

The system has an SiS 6205 PCI local bus motion video playback controller and graphics
accelerator integrated on the system board. State of the art techniques are used for
optimizing performance in computer graphic intensive applications and graphical user
interfaces (GUI).
The integrated graphics controller integrates a motion video controller, a high-performance
GUI accelerator, 24-bit high frequency DAC and clock generator, VESA
feature connector, and 1 MB of fast 64-bit DRAM (upgradeable to 2 MB).

Motion Video Controller

The motion video controller integrates a powerful Windows
motion video playback hardware for superior performance. The graphics engine includes an
on-chip color space converter to accelerate decompression and a hardware scaler to scale
continuously from native size up to full screen at full speed. The graphics engine delivers a
full screen, smooth display of motion video data up to 30 frames per second (fps). Support
includes MPEG-1 (multimedia systems only) and Video for Windows.
Table 1-6 Interrupt Level Assignments
Interrupt Device
System Timer
Keyboard
Audio (multimedia configurations only)
COM2
COM1
Audio (multimedia configurations only)
Diskette Drive Controller
Parallel Port LPT1
Clock/Calendar
Audio (multimedia configurations only)
Available
Available
PS/2 mouse
Coprocessor
Coprocessor
Primary IDE
Secondary IDE
®
-compliant
®
GUI engine and unique