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HU430 NLX Motherboard User Guide

124575UG Revision 2

Mitsubishi Electric PC Division

Page 20 of 21

+5V

J/stick A fire 1

J/stick B fire 1

J/stick A x-ctrl

J/stick B x-ctrl

GND

MIDI out

GND

J/stick B y-ctrl

J/stick A y-ctrl

J/stick B fire 2

J/stick A fire 2

MIDI in

+5V

Key pin

CPU Fan, PL16

The fan output is fused with a 0.75A resettable fuse. The maximum continuous current that
can be supplied by the motherboard is 150mA.

Ground

+12V switched

Ground

Microphone In, PL20

Shld

Frame GND

Ring

Bias

Tip

Signal input

Headphones Out, PL17

Shld

Frame GND

Ring

Right output

Tip

Left output

CD Audio, PL24

This connector is not always fitted to the motherboard.

Reference

Left in

Reference

Right in

Reset, PL14

This connector is not always fitted to the motherboard.

Summary of Contents for Hurricane HU430

Page 1: ...n 2 13 3 98 This document is the exclusive property of Mitsubishi Electric PC Division It shall not be copied nor it s contents communicated or reproduced in any form and for any purpose without specific authority in writing from Mitsubishi Electric PC Division ...

Page 2: ... ADDITIONAL 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 MOTHERBOARD POWER 10 2 9 1 Regulators 10 2 9 2 Battery 10 2 10 POWER MANAGEMENT 11 2 10 1 Global Power States 11 2 10 2 Power on Control 11 2 11 EXPANSION SLOTS 11 2 11 1 Industry Standard Architecture ISA 11 2 11 2 Peripheral Component Interconnect PCI 12 2 12 BUS RESOURCE UTIL...

Page 3: ...SA VGA ATI VT3 VT B part standard 3D RAGE II compatible 1MB 40ns EDO upgradeable to 2MB Audio controller Business audio only Crystal CS4236B Audio features MIDI joystick header Audio output Mono internal speaker PHONES OUT MIC IN jacks on motherboard rear panel Hard Disk CD ROM Dual ATA33 UltraDMA 33 Floppy Disk Standard 3 5 5 25 tape drives Support for 120MB via IDE Parallel Port IEEE 1284 ECP st...

Page 4: ...ry EDO can be 2MB 4 pieces soldered down or 1MB 2 pieces soldered 2 upgrade sockets LM78 instrumentation amp populated or de populated Audio populated or de populated 1 2 2 User Configurable Processor support set by jumpers Flash BIOS boot block can be unprotected by a jumper optional fit Re programming of Flash BIOS ROM can be disabled by a jumper optional fit Recovery code can be forced to run b...

Page 5: ...O N N P R I M A R Y I D E N L X R I S E R C O N N S E C O N D A R Y I D E N L X R I S E R S Y S T E M M O N I T O R L M 7 8 IC24 LM4880 IC25 C D I N P L 2 4 O R N L X H E A D P H O N E P L 1 7 I N T S P E A K E R N L X R I S E R XBUS_XD 7 0 I S A _ S A 1 9 0 LM358 IC27 M I C R O P H O N E P L 2 0 IO_LID fan_speed power_lines FLASH BIOS 2Mb IC15 I S A _ S D 1 5 0 BUFFER VIDEO RAM 0 1 2 3 DRAM_256K1...

Page 6: ...82371AB Q535ES sample FW82371AB SL23P prodn MTXC North Bridge features 64 bit processor host interface Pentium family at 60MHz and 66MHz 64 bit DRAM controller 4MB to 256MB main memory EDO or SDRAM L2 cache controller 256KB or 512KB direct mapped write back caches first 64MB main memory PBSRAM or DRAM cache Synchronous 30MHz 33MHz 32 bit PCI 2 1 bus controller Data path and buffers three sets of d...

Page 7: ...a single DIMM system it will be easier to fit it into MM1 as another DIMM may be added to MM2 in the future without having to unplug the module in MM1 2 4 2 BIOS There is a single TSOP 40 geometry on the motherboard for the Flash EPROM This is suitable for 1Mb 2Mb or 4Mb parts with 5V or 12V programming voltages An optional enable disable jumper when placed in the disable position blocks write cyc...

Page 8: ...tereo headphone output is derived from the stereo output mixer of the audio controller and the internal speaker s signal is derived from the audio controller s separate mono output stage In the Windows mixer panel it is necessary to un mute the PC Speaker output as this controls the audio controller s mono output A microphone input jack is provided with phantom power for electret condenser microph...

Page 9: ...py disk drive connector is mounted on the NLX riser As per the NLX specification all floppy disk input signals to the motherboard must be pulled up on the NLX riser 2 7 3 Serial Ports This is implemented in an SMC 37C675 device on the motherboard There are two standard COM ports which are wired to two standard 9 way D type connectors on the rear panel The maximum Baud rate is 115K bits per second ...

Page 10: ...ode regulator provides the power for the processor core and also powers the processor I O in the case of a non MMX Pentium The 3V3 power for the rest of the motherboard is supplied either by an optional fit on board linear regulator or by the NLX power supply fed via the NLX riser Warnings if the optional fit linear regulator is fitted on the motherboard then the user must ensure that 3V3 is not s...

Page 11: ...e after an AC reconnect regardless of how the machine was powered off GPO27 Action Low machine powers up in SOFT OFF and waits for a power button press before going into WORKING state High machine powers straight into WORKING state The GPO port bit is set by the BIOS during each power on sequence to determine the action to be taken on the next AC reconnect This setting is retained by a battery bac...

Page 12: ...io 8 bit option option 2 8 bit Floppy disk controller option 3 8 bit ECP parallel port option option 4 DMAC daisy chain 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 Audio Combo 0 Timer 0 1 Keyboard option 2 PIC daisy chain option 3 Serial port 2 option 4 Serial port 1 option 5 Audio option option 6 Fl...

Page 13: ...IX4E 0 PCI ISA bridge 1 IDE interface 2 USB interface 3 Power management 16 AD 27 Slot 3 18 AD 29 Slot 2 20 AD 31 Slot 1 Slot resource depends on NLX riser conforming to NLX specification 2 12 5 PCI Arbitration Channel Device PHOLD PIIX4E 0 VGA 1 Slot 1 2 Slot 2 3 Slot 3 3 Electrical Mechanical Thermal 3 1 Power Requirements TBD 3 2 PCB The PCB is a four layer design measuring W9 0 x L10 0 It is d...

Page 14: ...o the system rear panel which contains the I O connectors Length Width Comments Standard LPX 13 0 9 0 Spitfire 7 6 9 0 Small LPX HU430 10 0 9 0 Small NLX 3 3 Thermal The processor site needs to dissipate up to 28 3W This will accommodate the 233MHz 0 35µm 3 2V version of K6 The case temperature of Pentium Pentium MMX or K6 processors must not exceed 70ºC ...

Page 15: ...d so this must be set manually The table below shows supported CPUs with their configuration jumper settings note that the presence of any processor type or speed in the table does not imply that it is or will be available CPU Core bus speeds Ratio PCI ISA bus speeds BF2 BF1 BF0 FS Pw2 Pw1 Pw0 Pw3 Cor V P54C 90 60 MHz 3 2 30 7 5 MHz OUT 1 1 IN IN IN IN IN 3 5 P54C 100 66 MHz 3 2 33 8 33 MHz OUT 1 ...

Page 16: ...W1 PW2 BF0 BF1 0 1 BF1 0 BF2 1 PW3 PW0 PW1 PW2 BF0 FS VGA AUDIO MMX Power Jumper PL5 Note that these two jumpers must be fitted for a Pentium MMX or K6 processor to function correctly Position Function 1 2 3 4 P55C MMX or K6 No fit P54C Pentium Battery Jumper PL19 Position Function 1 2 Normal operation 2 3 Clear RTC CMOS RAM Enable On board Speaker PL13 Position Function IN Enable on board speaker...

Page 17: ... 1 5V 2 DATA 3 DATA 4 GND The 5V supply to both connectors is fused with a single 1 1A resettable fuse AMC PL12 Digital ground 1 2 P0 Digital ground 3 4 P1 Digital ground 5 6 P2 EVIDEO IOW 7 8 P3 ESYNC IOR 9 10 P4 EDCLK RDY 11 12 P5 NC SAD4 SD A 13 14 P6 Digital ground 15 16 P7 Digital ground 17 18 DCLK Digital ground 19 20 BLANK SA D0 VFSENSE 21 22 HSYNC SAD1 NC SCL 23 24 VSYNC SAD2 Key pin 25 26...

Page 18: ...7 SAD6 33 34 SAD5 RES SDA 35 36 REV Analogue gnd 37 38 12V AUDRIGHT 39 40 AUDLEFT VGA PL3 5 15 10 1 6 11 GND NC BLUE GREEN RED 1 GND 5V B RTN G RTN R RTN 6 SCL VSYNC HSYNC SDA NC 11 The 5V supply is fused with a 1 1A resettable fuse Keyboard Mouse PL9 1 CLK 2 5V 3 GND 4 No connect 5 DATA 6 No connect Parallel Port PL3 1 14 13 25 ...

Page 19: ...nd BUSY Ground PE Ground SLCT COM1 PL3 And COM2 PL7 1 6 5 9 1 DCD Input Data Carrier Detect 2 RXD Input Receive Data 3 TXD Output Transmit Data 4 DTR Output Data Terminal Ready 5 GND Ground Ground reference pin 6 DSR Input Data Set Ready 7 RTS Output Ready To Send 8 CTS Input Clear To Send 9 RI Input Ring Indicate MIDI Joystick Header PL18 The 5V supply to this connector is fused with a 1 1A reset...

Page 20: ... 15 16 Key pin CPU Fan PL16 The fan output is fused with a 0 75A resettable fuse The maximum continuous current that can be supplied by the motherboard is 150mA 1 Ground 2 12V switched 3 Ground Microphone In PL20 Shld Frame GND Ring Bias Tip Signal input Headphones Out PL17 Shld Frame GND Ring Right output Tip Left output CD Audio PL24 This connector is not always fitted to the motherboard 1 Refer...

Page 21: ...HU430 NLX Motherboard User Guide 124575UG Revision 2 Mitsubishi Electric PC Division Page 21 of 21 To cause a reset event to occur pin 1 must be shorted to ground 1 Input 2 Ground ...

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