NEC PowerMate 466M, Руководство по обслуживанию

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1-10 Technical Information
The interrupt levels are described in Table Section 1-4. Interrupt-level assignments 0
through 15 are in order of decreasing priority. See Section 2, Setup and Configuration, for
information on changing the interrupts using Setup and jumpers.
Table Section 1-4 Interrupt Level Assignments
Interrupt Priority Interrupt Device
IRQ00 Counter/Timer
IRQ01 Keyboard
IRQ02 Cascade (INT output from slave)
IRQ03 COM2*
IRQ04 COM1*
IRQ05 Available
IRQ06 Diskette Drive Controller*
IRQ07 Parallel Port 1*
IRQ08 Real-time clock
IRQ09 Available
IRQ10 Available
IRQ11 Available
IRQ12 PS/2 mouse*
IRQ13 Coprocessor
IRQ14 Primary IDE (fast)
IRQ15 Secondary IDE (standard)
*Industry standard locations
Video Controller
The 64300 Wingine DGX video controller with Local Bus video combines powerful ele-
ments aimed at addressing the requirements of personal computer designs. State of the art
techniques have been added for optimizing performance in computer graphic intensive ap-
plications and graphical user interfaces (GUI). A variety of industry standard 32-bit local
bus interfaces are integrated on chip, including VESA Local Bus (VL-Bus). The key is that
local bus interfaces are 32-bit wide.
Included in the video controller are cost saving features such as an integrated palette DAC
and clock synthesizer along with integrated support for multiple bus interfaces and flexible
DRAM-based display memory configurations.