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1st MB Memory Address Map

Memory address

Description

00000-9FFFF System

memory

A0000-BFFFF VGA

buffer

C0000-C7FFF VGA

BIOS

F0000-FFFFF System

BIOS

1000000- Extend

BIOS

*Default setting

IRQ Mapping Table

IRQ0 System

Timer

IRQ8 RTC

clock

IRQ1 Keyboard

IRQ9 Available

IRQ2

Cascade to IRQ Controller

IRQ10

Available

IRQ3 COM2

IRQ11 Available

IRQ4 COM1

IRQ12 PS2

mouse

IRQ5 Available

IRQ13 FPU

IRQ6 FDC

IRQ14 Primary

IDE

IRQ7 Printer

IRQ15 Secondary

IDE

DMA Channel Assignments

Channel

Function

Available

Floppy disk ( 8-bit transfer )

Available

Cascade for DMA controller 1

Available

8 Bit Programmable Digital I/O

The WAFER7850 provides 8 bit programmable digital I/O ports which located
on the super I/O chip IT8702F. The system address is

801H

. The detail

mapping table is as the following

GPIO[0..7]

PIN#

ADDRESS

0 27 Bit

1 26 Bit

2 25 Bit

3 24 Bit

4 23 Bit

5 22 Bit

Bit 6

7 20

Bit

Summary of Contents for WAFER-7850

Page 1: ...prior written permission of the manufacturer Trademarks WAFER 7850 is registered trademarks of ICP Electronics Inc IBM PC is a registered trademark of International Business Machines Corporation Intel is a registered trademark of Intel Corporation Award is registered trademarks of Award Software International Inc Other product names mentioned herein are used for identification purposes only and ma...

Page 2: ...s 39 4 8 Integrated Peripherals 43 4 9 Power Management Setup 46 4 10 PnP PCI Configuration Setup 49 4 11 Frequency Voltage Control 51 4 12 Defaults Menu 52 4 13 Supervisor User Password Setting 53 4 14 Exit Selecting 55 Appendix A Watchdog Timer 56 4 Appendix B Address Mapping 58 IO Address Map 58 1st MB Memory Address Map 59 IRQ Mapping Table 59 DMA Channel Assignments 59 8 Bit Programmable Digi...

Page 3: ...PGA Processor 450MHz and above DMA channels 7 Interrupt levels 15 Chipset Intel 815E RAM memory Single 144 pin SODIMM socket The memory capability is up to 256MB 133MHz Ultra ATA 33 66 100 IDE Interface Single PCI Enhance IDE channel The south bridge ICH2 supports Ultra ATA 33 66 100 IDE interface To support Ultra ATA66 100 Hard disk a specified cable must be available Floppy disk drive interface ...

Page 4: ...tion to this User s Manual the WAFER 7850 package includes the following items WAFER 7850 Celeron Pentium III Single Board Computer with a heat sink on the GMCH chip RS 232 cable Printer cable FDD cable IDE cable USB cable Audio cable with 6X2 2 0mm pitch female connector Cooler and Heat sink module Y cable for PS 2 keyboard and mouse 8 2 Installation This chapter describes how to install the WAFE...

Page 5: ...k IDE PRINTER FLOPY DISK COM 2 AUDIO COM1 RJ45 PS2 KB MS VGA FAN RESET BIG 4PIN JP3 JP2 USB IRDA CD IN BAT JP4 JP1 DAUGHTER BOARD SLOT COMPONENT SIDE VIEW 144PIN SODIMM COMPACT FLASH TYPE II IBM MICRO DRIVE COMPATIBLE SOLDER SIDE VIEW 10 2 2 WAFER 7850 s Dimension ...

Page 6: ...ction Setting To protect the bios from writing place the cap on the location 2 3 JP1 Flash Protection Setting JP1 DESCRIPTION 2 3 Locked 1 2 Unlocked 2 5 COM2 RS232 or RS422 485 Selection JP4 COM2 RS232 or RS422 485 Selection JP4 DESCRIPTION RS232 Short RS422 485 Opened Caution While RS232 is selected to be sure no daughter board Wafer 7851 with RS422 485 function equipped If RS422 485 is in use t...

Page 7: ... the IDE is transferring data this LED is in flicker The lower yellow LED indicates the power on off After the power on the yellow LED will light on On the RJ45 connector while the network is in linking the yellow LED turns on During data transmitting or receiving the green LED will flicker The flicker rate depends on the activity load D6 GREEN YELLOW YELLOW GREEN RJ45 ...

Page 8: ...7 GROUND 28 WRITE PROTECT 29 N C 30 READ DATA 31 GROUND 32 SIDE 1 SELECT 33 N C 34 DISK CHANGE 1 2 33 34 16 3 2 Ultra ATA33 66 100 IDE Disk Drive Connector You can attach two IDE Integrated Device Electronics hard disk drives to the WAFER 7850 IDE controller CN4 IDE 1 Primary IDE Connector PIN NO DESCRIPTION PIN NO DESCRIPTION 1 RESET 2 GROUND 3 DATA 7 4 DATA 8 5 DATA 6 6 DATA 9 7 DATA 5 8 DATA 10...

Page 9: ...h speed NS16C550 compatible UARTs with Read Receive 16 byte FIFO serial ports CN14 COM1 CN8 COM2 1 14 13 26 18 CN14 COM1 9 pin Connector PIN NO DESCRIPTION 1 DATA CARRIER DETECT DCD 2 RECEIVE DATA RXD 3 TRANSMIT DATA TXD 4 DATA TERMINAL READY DTR 5 GROUND GND 6 DATA SET READY DSR 7 REQUEST TO SEND RTS 8 CLEAR TO SEND CTS 9 RING INDICATOR RI CN8 COM2 10 pin Connector PIN NO DESCRIPTION 1 DATA CARRI...

Page 10: ...onnector and chassis fan connector These connectors can supply 12V 500mA to the cooling fan The Fan s rotation is in full speed FAN1 FAN2 CPU Fan Connector PIN NO DESCRIPTION 3 NC 2 12V 1 2 3 4 1 2 3 4 5 3 2 1 20 1 Ground 3 9 LAN RJ45 Connector WAFER 7850 is equipped with a built in 10 100Mbps Ethernet Controller You can connect it to your LAN through RJ45 LAN connector The pin assignments are as ...

Page 11: ...D 4 CD RIGHT SIGNAL 1 2 11 12 1 2 3 4 22 3 12 CompactFlash Storage Card Socket The WAFER 7850 configures CompactFlash Storage Card in IDE Mode This type II Socket is compatible with IBM Micro Drive CN17 CompactFlash Storage Card Socket pin assignment PIN NO DESCRIPTION PIN NO DESCRIPTION 1 GROUND 26 CARD DETECT1 2 D3 27 D11 3 D4 28 D12 4 D5 29 D13 5 D6 30 D14 6 D7 31 D15 7 CS1 32 CS3 8 N C 33 N C ...

Page 12: ...u will again be asked to PRESS F1 TO CONTINUE DEL TO ENTER SETUP 24 4 3 Using Setup In general you can use the arrow keys to highlight items press Enter to select use the PageUp and PageDown keys to change entries press F1 for help and press Esc to quit The following table provides more details about how to navigate in the Setup program using the keyboard Key Function Up Arrow Move to the previous...

Page 13: ...Advanced BIOS Features Advanced Chipset Features Integrated Peripherals Power Management Setup PnP PCI Configurations Frequency Voltage Control Load Fail Safe Defaults Load Optimized Defaults Set Supervisor Password Set User Password Save Exit Setup Exit Without Saving Esc Quit Select Item F10 Save Exit Setup Time Date Hard Disk Type Note that a brief description of each highlighted selection appe...

Page 14: ...he details Frequency Voltage Control Use this menu to specify your settings for frequency voltage control See section 4 11 for the details Load Fail Safe Defaults 28 Use this menu to load the BIOS default values for the minimal stable performance for your system to operate See section 4 12 for the details Load Optimized Defaults Use this menu to load the BIOS default values that are factory settin...

Page 15: ...scription Date MM DD YYYY Set the system date Time HH MM SS Set the system time IDE Primary Master Options are in its sub menu described in Table 3 Press Enter to enter the sub menu of detailed options IDE Primary Slave Options are in its sub menu described in Table 3 Press Enter to enter the sub menu of detailed options IDE Secondary Master Options are in its sub menu described in Table 3 Press E...

Page 16: ...ptimized Defaults Figure 2 IDE Primary Master sub menu 32 Use the legend keys to navigate through this menu and exit to the main menu Use Table 3 to configure the hard disk Item Options Description IDE HDD Auto detection Press Enter Press Enter to auto detect the HDD on this channel If detection is successful it fills the remaining fields on this menu IDE Primary Master None Auto Manual Selecting ...

Page 17: ... and alarm beep Move Enter Select PU PD Value F10 Save ESC Exit F1 General Help F5 Previous Values F6 Fail safe defaults F7 Optimized Defaults Virus Warning Allows you to choose the VIRUS Warning feature for IDE Hard Disk boot sector protection If this function is enabled and someone attempt to 34 write data into this area BIOS will show a warning message on screen and alarm beep Enabled Activates...

Page 18: ... two floppy drives you can swap the logical drive name assignments The choice Enabled Disabled Boot Up Floppy Seek Seeks disk drives during boot up Disabling speeds boot up The choice Enabled Disabled Boot Up NumLock Status Select power on state for NumLock The choice On Off Gate A20 Option Select if chipset or keyboard controller should control GateA20 Normal A pin in the keyboard controller cont...

Page 19: ... boots or only when you enter setup System The system will not boot and access to Setup will be denied if the correct password is not entered at the prompt Setup The system will boot but access to Setup will be denied if the correct password is not entered at the prompt Note To disable security select PASSWORD SETTING at Main Menu and then you will be asked to enter password Do not type anything a...

Page 20: ...itions for your system 40 DRAM Settings The first chipset settings deal with CPU access to dynamic random access memory DRAM The default timings have been carefully chosen and should only be altered if data is being lost Such a scenario might well occur if your system had mixed speed DRAM chips installed so that greater delays may be required to preserve the integrity of the data held in the slowe...

Page 21: ... reserved it cannot be cached The user information of peripherals that need to use this area of system memory usually discusses their memory requirements The Choice Enabled Disabled CPU Latency Timer Enabled CPU cycle will only be Deferred after in has been in a Snoop Stall for 31 clocks and another ADS has arrived Disabled CPU cycle will only be Deferred immediately after the GMCH receives anothe...

Page 22: ...controller contains an IDE interface with support for two IDE channels Select Enabled to activate each channel separately The choice Enabled Disabled 44 IDE Primary Secondary Master Slave PIO The four IDE PIO Programmed Input Output fields let you set a PIO mode 0 4 for each of the four IDE devices that the onboard IDE interface supports Modes 0 through 4 provide successively increased performance...

Page 23: ... Port Select an address and corresponding interrupt for the parallel ports The choice 378 IRQ7 278 IRQ5 3BC IRQ7 Disabled Parallel Port Mode Select a parallel operation mode The choice SPP EPP ECP ECP EPP Watchdog Timer Unit Select Select the WatchDog Timer unit The choice Second Minute 46 4 9 Power Management Setup The Power Management Setup allows you to configure you system to most effectively ...

Page 24: ...zation ports and write blanks to the video buffer Blank Screen This option only writes blanks to the video buffer DPMS Initial display power management signaling 48 Video Off In Suspend This determines the manner in which the monitor is blanked The choice Yes No SuspendType Select the Suspend Type The choice PWRON Suspend Stop Grant Suspend Mode When enabled and after the set time of system inacti...

Page 25: ...ct Enabled to reset Extended System Configuration Data ESCD when you exit Setup if you have installed a new add on and the system reconfiguration has caused such a serious conflict that the operating system can not boot The choice Enabled Disabled 50 Resource controlled by The Award Plug and Play BIOS has the capacity to automatically configure all of the boot and Plug and Play compatible devices ...

Page 26: ...lows you to enable disable the spread spectrum modulate The choice Enabled Disabled CPU Clock Ratio This item allows you to select CPU clock ratio The choice 3 3 5 4 4 5 5 5 5 6 6 5 7 7 5 8 52 4 12 Defaults Menu Selecting Defaults from the main menu shows you two options which are described below Load Fail Safe Defaults When you press Enter on this item you get a confirmation dialog box with a mes...

Page 27: ...selection and not enter a password To disable a password just press Enter when you are prompted to enter the password A message will confirm the password will be disabled Once the password is disabled the system will boot and you can enter Setup freely PASSWORD DISABLED When a password has been enabled you will be prompted to enter it every time you try to enter Setup This prevents an unauthorized...

Page 28: ...bug When the CPU stops working correctly hardware on the board will either perform a hardware reset cold boot or a Non Maskable Interrupt NMI to bring the system back to a known state A BIOS function call INT 15H is used to control the Watchdog Timer INT 15H AH 6FH Sub function AL 2 Set the Watchdog Timer s period BL Time out value Its unit second or minute is dependent on the item Watchdog Timer ...

Page 29: ... 8254 timer 060 06F 8042 Keyboard Controller 070 07F Real time Clock NMI Mask 080 09F DMA Page Register 0A0 0BF Interrupt Controller 2 0C0 0DF DMA Controller 2 0F0 Clear Math Coprocessor Busy 0F1 Reset Math Coprocessor 0F2 Core logic programming configuration 0F8 0FF Math Coprocessor 1F0 1F8 Fixed Disk 200 207 Game I O 278 27F Parallel Printer Port 2 LPT3 2E8 2EF Serial Port 4 2F8 2FF Serial Port ...

Page 30: ...Available IRQ13 FPU IRQ6 FDC IRQ14 Primary IDE IRQ7 Printer IRQ15 Secondary IDE DMA Channel Assignments Channel Function 0 Available 1 Available 2 Floppy disk 8 bit transfer 3 Available 4 Cascade for DMA controller 1 5 Available 6 Available 7 Available 60 8 Bit Programmable Digital I O The WAFER7850 provides 8 bit programmable digital I O ports which located on the super I O chip IT8702F The syste...

Page 31: ...rking on CPU toward the left hand side Push CPU lightly into the clip to make the CPU holder hold ing the CPU base board then slowly tighten the screws Be careful too tight would cause the CPU base board broken Using fingers to rotate the screws instead of screwdriver is recommended screw 62 Step 4 Place the CPU with cooler on the socket 370 lightly Be sure of each pin to hole is correct Using pal...

Page 32: ...some functions to compensate the spec of Wafer 7850 main board which due to the tiny space There are four functions including RS422 485 4in and 4out 8 bit digital I O TV OUT with 1024x768 resolution and Flat Panel At the first open the main board s JP4 then attach the daughter board on the main board IDE PRINTER FLOPY DISK COM 2 AUDIO COM1 RJ45 PS2 KB MS VGA DAUGHTER BOARD SLOT COMPONENT SIDE VIEW...

Page 33: ...e default input value is 1111 in binary format The high level is in 5 volts and the low level is in 0 volts CN3 PIN NO DESCRIPTION 1 DIN0 BIT0 3 DIN1 BIT1 5 DIN2 BIT2 7 DIN3 BIT3 2 DOUT0 BIT4 4 DOUT1 BIT5 6 DOUT2 BIT6 8 DOUT3 BIT7 66 D 3 TV OUT The selection of NTSC or PAL TV system is on driver no hardware jumper CN4 TV OUTPUT Wafer 7851 provides both composite and S Video signal PIN NO DESCRIPTI...

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