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APPENDIX 

60

 

MB870 User’s Manual

 

 

B. Interrupt Request Lines (IRQ) 

 
Peripheral devices use interrupt request lines to notify CPU for the 
service required. The following table shows the IRQ used by the devices 
on board. 

 

Level 

Function 

IRQ0 

System Timer Output 

IRQ1 Keyboard 
IRQ2 Interrupt 

Cascade 

IRQ3 

Serial Port #2 

IRQ4 

Serial Port #1 

IRQ5 Reserved 
IRQ6 

Floppy Disk Controller 

IRQ7 

Parallel Port #1 

IRQ8 

Real Time Clock 

IRQ9 Reserved 
IRQ10 Reserved 
IRQ11 Reserved 
IRQ12 PS/2 

Mouse 

IRQ13 80287 
IRQ14 Primary 

IDE 

IRQ15 Secondary 

IDE 

 
 
 
 
 

Summary of Contents for MB870

Page 1: ...MB870 Socket 478 Pentium 4 ATI RS300M Mini ITX USER S MANUAL Version 1 0...

Page 2: ...International Business Machines Corporation Intel and Pentium 4 are registered trademarks of Intel Corporation Microsoft Windows is a registered trademark of Microsoft Corporation Winbond is a regist...

Page 3: ...lling the Memory 7 Setting the Jumpers 8 Connectors on MB870 12 Watchdog Timer Configuration 23 Digital I O Sample Code 27 BIOS Setup 31 Drivers Installation 50 ATI Chipset Software Installation Utili...

Page 4: ...iv MB870 User s Manual This page is intentionally left blank...

Page 5: ...s two digital graphics input data streams One data stream outputs through an LVDS transmitter to an LCD panel while the other data stream is encoded for NTSC or PAL TV and outputs through a 10 bit hig...

Page 6: ...ge should include the items listed below The MB870 P4 Mini ITX board This User s Manual 1 CD containing chipset drivers and flash memory utility Optional cables such as 1 slim FDD Ribbon Cable 2 IDE R...

Page 7: ...MM Module Max capacity 1GB LPC I O 1 First I O Winbond 83627HF IrDAx1 Parallel x1 COM1 RS 232 COM2 RS 232 FDC 1 44MB Slim type Hardware monitor 3 thermal inputs 8 voltage monitor inputs VID0 4 1 chass...

Page 8: ...INTRODUCTION 4 MB870 User s Manual Board Dimensions...

Page 9: ...nformation on how to use the jumpers and connectors on the MB870 in order to set up a workable system The topics covered are Installing the CPU 6 Installing the Memory 7 Setting the Jumpers 8 Connecto...

Page 10: ...essor into the socket by making sure the notch on the corner of the CPU corresponds with the notch on the inside of the socket Once the processor has slide into the socket return the lever to the lock...

Page 11: ...nly Non JEDEC standard DIMMs such as double sided x16 DDR SDRAM DIMMs are not supported Installing and Removing Memory Modules To install the DDR modules locate the memory slot on the embedded board a...

Page 12: ...ve doubts about the best configuration for your needs The following lists the connectors on MB870 and their respective functions Jumper Locations on MB870 9 Configuring the CPU Frequency 10 J24 RTL810...

Page 13: ...870 Page Jumper Locations on MB870 9 Configuring the CPU Frequency 10 J24 RTL8100BL LAN Enable Disable 10 JP12 LVDS Panel Power Select 10 JP13 Clear CMOS Contents 10 JP8 COM3 RS232 5V 12V Power Settin...

Page 14: ...J24 RTL8100BL LAN Enable Disable J24 10 100Mb LAN Enable Disable JP12 LVDS Panel Power Select JP12 LVDS Panel Power 3 3V default 5V JP13 Clear CMOS Contents Use JP13 to clear the CMOS contents Note t...

Page 15: ...t 12V Pin 5 6 short 5V Pin 3 4 Standard COM Port JP7 COM4 RS232 5V 12V Power Setting Pin Signal Name JP7 Signal Name Pin 1 RI 12V 2 3 RI Default RI Default 4 5 RI 5V 6 COM4 Settings Pin 1 2 short 12V...

Page 16: ...er Connector 16 J7 J30 System Fan Power Connector 17 J8 USB Connector USB1 USB2 17 J9 IrDA Connector 17 J11 Digital 4 in 4 out I O Connector 17 J12 COM1 Serial Port 17 J13 Parallel Port Connector 18 J...

Page 17: ...J11 Digital 4 in 4 out I O Connector 17 J12 COM1 Serial Port 17 J13 Parallel Port Connector 18 J14 Serial Ports 19 JP14 Power LED Connector 19 J15 VGA CRT connector 19 J16 RJ45 Connector 20 J17 J19 LV...

Page 18: ...IDE1 Primary IDE Connector Signal Name Pin Pin Signal Name Reset IDE 1 2 Ground Host data 7 3 4 Host data 8 Host data 6 5 6 Host data 9 Host data 5 7 8 Host data 10 Host data 4 9 10 Host data 11 Host...

Page 19: ...ta 12 Host data 2 13 14 Host data 13 Host data 1 15 16 Host data 14 Host data 0 17 18 Host data 15 Ground 19 20 Key DRQ0 21 22 Ground Host IOW 23 24 Ground Host IOR 25 26 Ground IOCHRDY 27 28 Host ALE...

Page 20: ...d 5V 18 8 Power good 5V 19 9 5VSB 5V 20 10 12V 11 1 20 10 J3 PS 2 Keyboard and PS 2 Mouse Connectors PS 2 Mouse PS 2 Keyboard Signal Name Keyboard Mouse Signal Name Keyboard data 1 1 Mouse data N C 2...

Page 21: ...ction J8 USB Connector USB1 USB2 J8 is a stacked USB port Pin Signal Name 1 Vcc 2 USB 3 USB USB0 USB1 4 Ground J9 IrDA Connector J9 is used for an optional IrDA connector for wireless communication Pi...

Page 22: ...Parallel Port Connector J13 is a DB 25 external The following table describes the pin out assignments of this connector Signal Name Pin Pin Signal Name Line printer strobe 1 14 AutoFeed PD0 parallel d...

Page 23: ...eady 7 RTS Request to send 8 CTS Clear to send 9 RI Ring indicator 10 No Connect JP14 Power LED Connector Pin Signal Name 1 Vcc 2 NC 3 PLED J15 VGA CRT connector J15 is a DB 15 VGA connector The follo...

Page 24: ...Pin Signal Name TX0 2 1 TX0 Ground 4 3 Ground TX1 6 5 TX1 5V 3 3V 8 7 Ground TX3 10 9 TX3 TX2 12 11 TX2 Ground 14 13 Ground TXC 16 15 TXC 5V 3 3V 18 17 ENABKL 12V 20 19 12V J18 J20 Serial ATA SATA Con...

Page 25: ...5 6 MIC 2 J23 USB Connector USB3 USB4 The following table shows the pin outs of the USB pin headers connectors USB 2 0 compliant Signal Name Pin Pin Signal Name Vcc 1 5 Ground USB0 2 6 USB1 USB0 3 7...

Page 26: ...r s Manual J28 System Function Connector Signal Name Pin Pin Signal Name 5VSB 1 2 PS_ON 5V 3 4 HDD Active Ground 5 7 Reset ATX power on switch Pins 1 2 HDD LED Pins 3 4 Reset switch Pins 5 6 J29 Line...

Page 27: ...rmal circumstance the user will restart the WDT at regular intervals before the timer counts to zero SAMPLE CODE This code and information is provided as is without warranty of any kind either express...

Page 28: ...h mov cl 30h call Write_Reg watchdog enabled call Lock_Chip ret Enable_And_Set_Watchdog Endp Name Disable_Watchdog IN None OUT None Disable_Watchdog Proc Near call Unlock_Chip mov cl 07h mov al 08h ca...

Page 29: ...out dx al out dx al ret Unlock_Chip Endp Name Lock_Chip IN None OUT None Unlock_Chip Proc Near mov dx 4Eh mov al 0AAh out dx al ret Unlock_Chip Endp Name Write_Reg IN CL register index AL Value to wr...

Page 30: ...INSTALLATIONS 26 MB870 User s Manual Name Read_Reg IN CL register index OUT AL Value to read Read_Reg Proc Near Mov al cl mov dx 4Eh out dx al inc dx in al dx ret Read_Reg Endp...

Page 31: ...RRANTIES OF MERCHANTABILITY AND OR FITNESS FOR A PARTICULAR PURPOSE ifndef __W627HF_H define __W627HF_H 1 define W627_IOBASE 0x4E define W627HF_INDEX_PORT W627_IOBASE 0 define W627HF_DATA_PORT W627_IO...

Page 32: ...627HF_INDEX_PORT W627HF_UNLOCK outportb W627HF_INDEX_PORT W627HF_UNLOCK void Lock_W627HF void outportb W627HF_INDEX_PORT W627HF_LOCK void Set_W627HF_LD unsigned char LD Unlock_W627HF outportb W627HF_I...

Page 33: ...627HF H void ClrKbBuf void int main int argc char argv int main int argc char argv unsigned char ucDO 0 data for digital output unsigned char ucDI data for digital input unsigned char ucBuf Set_W627HF...

Page 34: ...INSTALLATIONS 30 MB870 User s Manual This page is intentionally left blank...

Page 35: ...r are as follows BIOS Introduction 32 BIOS Setup 32 Standard CMOS Setup 34 Advanced BIOS Features 37 Advanced Chipset Features 40 Integrated Peripherals 42 Power Management Setup 44 PNP PCI Configurat...

Page 36: ...BIOS is immediately activated Pressing the Del key immediately allows you to enter the Setup utility If you are a little bit late pressing the Del key POST Power On Self Test will continue with its t...

Page 37: ...displays the control keys for this menu At the bottom of the Main Menu just below the control keys section there is another section which displays information on the currently highlighted item in the...

Page 38: ...hh mm ss 00 00 00 Menu Level IDE Primary Master Change the day month IDE Primary Slave Year and century IDE Secondary Master None IDE Secondary Slave Drive A 1 44M 3 5 in Video EGA VGA Halt On All Er...

Page 39: ...lave Press Enter to configure the hard disk The selections include Auto Manual and None Select Manual to define the drive information manually You will be asked to enter the following items CYLS Numbe...

Page 40: ...r not the system will halt if an error is detected during power up No errors The system boot will not be halted for any error that may be detected All errors Whenever the BIOS detects a non fatal erro...

Page 41: ...OS 1 4 OS Select For DRAM 64MB Non OS2 HDD S M A R T Capabitility Disabled Virus Warning This item protects the boot sector and partition table of your hard disk against accidental modifications If an...

Page 42: ...eek This feature controls whether the BIOS checks for a floppy drive while booting up If it cannot detect one either due to improper configuration or its absence it will flash an error message Boot Up...

Page 43: ...the Setup utility is called up APIC Mode APIC stands for Advanced Programmable Interrupt Controller The default setting is Enabled MPS Version Control for OS This option is specifies the MPS Multiproc...

Page 44: ...RAS 1 Clock Onboard SATA chip mode SATA mode Memory Frequency For This field sets the frequency of the DRAM memory installed The default setting is Auto AGP Aperture Size The field sets aperture size...

Page 45: ...ield indicates the current DRAM frequency System BIOS Cacheable The setting of Enabled allows caching of the system BIOS ROM at F000h FFFFFh resulting in better system performance However if any progr...

Page 46: ...ex Mode Half Use IR Pins On Onboard Parallel Port 378 IRQ7 Parallel Port Mode SPP EPP Mode Select EPP1 7 ECP Mode Use DMA 3 PWRON After PWR Fail Off Onboard Serial Port 3 3E8H Serial Port 3 Use IRQ IR...

Page 47: ...wish to use it Onboard Serial Parallel Port These fields allow you to select the onboard serial and parallel ports and their addresses The default values for these ports are Serial Port 1 3F8H IRQ4 Se...

Page 48: ...te of Month Alarm 0 Time hh mm ss Alarm 0 0 0 ACPI Function Enable this function to support ACPI Advance Configuration and Power Interface ACPI Suspend Type This field sets the ACPI Suspend Type The d...

Page 49: ...uffer Soft Off by PWRBTN This field defines the power off mode when using an ATX power supply The Instant Off mode allows powering off immediately upon pressing the power button In the Delay 4 Sec mod...

Page 50: ...flict that the OS cannot boot Reset Configuration Data This field allows you to determine whether to reset the configuration data or not The default value is Disabled Resources Controlled by This PnP...

Page 51: ...eld allows the user to set the temperature so that when the temperature is reached the system sounds a warning This function can help prevent damage to the system that is caused by overheating Tempera...

Page 52: ...to configure the processor frequency Phoenix Award WorkstationBIOS CMOS Setup Utility Frequency Voltage Control Spread Spectrum Disable ITEM HELP Menu Level Spread Spectrum This field sets the value o...

Page 53: ...assword message prompts on the screen Type the password up to eight characters in length and press Enter The system confirms your password by asking you to type it again After setting a password the s...

Page 54: ...where you made the purchase The contents of this section include the following ATI Chipset Software Installation Utility 51 Realtek AC97 Codec Audio Driver Installation 55 Realtek RTL8100 LAN Drivers...

Page 55: ...before the software drivers will enable Plug Play INF support for ATI components Follow the instructions below to complete the installation under Windows 98 98SE ME 2000 XP 1 Insert the CD that comes...

Page 56: ...APPENDIX 52 MB870 User s Manual 3 When the Welcome screen appears click Next to continue 4 Click Yes to accept the software license agreement and proceed with the installation process...

Page 57: ...APPENDIX MB870 User s Manual 53 5 On Select Components screen click Express to continue the installation 6 When this screen appears click Yes to continue the installation...

Page 58: ...Manual 7 The Setup process is now complete Click Finish to restart the computer and for changes to take effect When the computer has restarted the system will be able to find some devices Restart you...

Page 59: ...ow the steps below to install the Realtek AC97 Codec Audio Drivers 1 Insert the CD that comes with the CPU card and the screen below would appear Click Intel Chipsets Click Realtek AC97 Codec Audio Dr...

Page 60: ...APPENDIX 56 MB870 User s Manual 3 Click Finish to restart the computer and for changes to take effect...

Page 61: ...eps below to start installing the Realtek LAN drivers 1 Insert the CD that comes with the CPU In the initial screen click on LAN Card on the left side Then select Realtek Network Interface Controller...

Page 62: ...APPENDIX 58 MB870 User s Manual 3 Click Finish to complete the setup and for changes to take effect...

Page 63: ...5Fh Timer 060h 06Fh Keyboard Controller 070h 07Fh Real Time Clock NMI 080h 09Fh DMA Page Register 0A0h 0BFh Interrupt Controller 2 0C0h 0DFh DMA Controller 2 0F0h Clear Math Coprocessor Busy Signal 0F...

Page 64: ...g table shows the IRQ used by the devices on board Level Function IRQ0 System Timer Output IRQ1 Keyboard IRQ2 Interrupt Cascade IRQ3 Serial Port 2 IRQ4 Serial Port 1 IRQ5 Reserved IRQ6 Floppy Disk Con...

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