HU430 NLX Motherboard User Guide
124575UG Revision 2
Mitsubishi Electric PC Division
Page 2 of 21
Contents
1
OVERVIEW ...................................................................................................................................3
1.1
M
OTHERBOARD
F
EATURES
...........................................................................................................3
1.2
C
ONFIGURATION
O
PTIONS
............................................................................................................4
1.2.1
Build-time............................................................................................................................4
1.2.2
User Configurable...............................................................................................................4
1.3
B
LOCK
D
IAGRAM
.........................................................................................................................5
2
ELECTRONICS.............................................................................................................................6
2.1
P
ROCESSOR
..................................................................................................................................6
2.2
C
ORE
L
OGIC
.................................................................................................................................6
2.3
L
EVEL
2 C
ACHE
............................................................................................................................7
2.4
M
EMORY
......................................................................................................................................7
2.4.1
Main Memory......................................................................................................................7
2.4.2
BIOS....................................................................................................................................7
2.5
V
IDEO
...........................................................................................................................................7
2.6
A
UDIO
..........................................................................................................................................8
2.7
S
TANDARD
I/O .............................................................................................................................8
2.7.1
Keyboard and Mouse ..........................................................................................................9
2.7.2
Floppy Disk Interface..........................................................................................................9
2.7.3
Serial Ports .........................................................................................................................9
2.7.4
Parallel Port .......................................................................................................................9
2.8
A
DDITIONAL
I/O...........................................................................................................................9
2.8.1
IDE Disk Controller............................................................................................................9
2.8.2
Universal Serial Bus (USB) ..............................................................................................10
2.8.3
System Management Bus (SMBus)....................................................................................10
2.9
M
OTHERBOARD
P
OWER
..............................................................................................................10
2.9.1
Regulators .........................................................................................................................10
2.9.2
Battery...............................................................................................................................10
2.10
P
OWER
M
ANAGEMENT
...........................................................................................................11
2.10.1
Global Power States .....................................................................................................11
2.10.2
Power-on Control .........................................................................................................11
2.11
E
XPANSION
S
LOTS
.................................................................................................................11
2.11.1
Industry Standard Architecture (ISA) ...........................................................................11
2.11.2
Peripheral Component Interconnect (PCI) ..................................................................12
2.12
B
US
R
ESOURCE
U
TILISATION
.................................................................................................12
2.12.1
ISA DMA Channels.......................................................................................................12
2.12.2
ISA Interrupts ...............................................................................................................12
2.12.3
PCI Interrupts...............................................................................................................13
2.12.4
PCI Device Selection ....................................................................................................13
2.12.5
PCI Arbitration.............................................................................................................13
3
ELECTRICAL, MECHANICAL, THERMAL.........................................................................13
3.1
P
OWER
R
EQUIREMENTS
..............................................................................................................13
3.2
PCB............................................................................................................................................13
3.3
T
HERMAL
...................................................................................................................................14
APPENDIX A. JUMPERS AND SWITCHES....................................................................................15
APPENDIX B. CONNECTOR ASSIGNMENTS ..............................................................................17
