Peripheral Component Interconnect (Pci); Bus Resource Utilisation; Isa Dma Channels; Isa Interrupts - Mitsubishi Electric Hurricane HU430 User Manual

HU430 NLX Motherboard User Guide
The PIIX4E can support up to 5 ISA slots on the riser. There are an additional two ISA
'loads' used on the motherboard: the audio and super i/o controllers.

2.11.2 Peripheral Component Interconnect (PCI)

The motherboard can support up to 3 bus master PCI slots on the NLX riser.

2.12 Bus Resource Utilisation

2.12.1 ISA DMA Channels

DMA Data
Width
0 8-bit
1 8-bit
8-bit
2
3 8-bit
4 -
5 16-bit
6 16-bit
7 16-bit
Shaded areas indicate DMA channels not normally available on the ISA bus

2.12.2 ISA Interrupts

IRQ Usual Assignment
0 Timer 0
1 Keyboard
2 PIC daisy chain
3 Serial port 2
4 Serial port 1
5 Audio
6 Floppy disk controller
7 Parallel port
8 Real-time clock
9 Video
10
11
12 Mouse
13 Co-processor
14 Primary IDE
15 Secondary IDE
Shaded areas indicate IRQs not normally available on the ISA bus
Mitsubishi Electric PC Division
Usual Assignment
Audio (8-bit)
Floppy disk controller
ECP parallel port
DMAC daisy chain
Audio
option
option
option
option
option
option
Audio
Combo
option
option option
option
option option
Combo
option
option
option
option
option
option
option
option
option
option
option
option
option
option
option
124575UG Revision 2
Page 12 of 21