Video Controller; Interrupt Level Assignments - NEC POWERMATE 4100M Service Manual

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
IRQ00
IRQ01
IRQ02
IRQ03
IRQ04
IRQ05
IRQ06
IRQ07
IRQ08
IRQ09
IRQ10
IRQ11
IRQ12
IRQ13
IRQ14
IRQ15
*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.
Interrupt Device
Counter/Timer
Keyboard
Cascade (INT output from slave)
COM2*
COM1*
Available
Diskette Drive Controller*
Parallel Port 1*
Real-time clock
Available
Available
Available
PS/2 mouse*
Coprocessor
Primary IDE (fast)
Secondary IDE (standard)