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Appendix B Programming the Watchdog Timer                                         

B-7

                                

; game port enable 
mov cl, 9 
call Set_Logic_Device 
 

Initial_OK: 
CALL Exit_Configuration_mode 
MOV AH,4Ch 
INT 21h 
 
Enter_Configuration_Mode PROC NEAR 
MOV SI,WORD PTR CS:[Offset Cfg_Port] 
 

MOV DX,02Eh 
MOV CX,04h 
Init_1: 
MOV AL,BYTE PTR CS:[SI] 
OUT DX,AL 
INC SI 
LOOP Init_1 
RET 
Enter_Configuration_Mode ENDP 

 

Exit_Configuration_Mode PROC NEAR 
MOV AX,0202h 
CALL Write_Configuration_Data 

Содержание PCM-8200

Страница 1: ...Compact Board P C M 8 2 0 0 PCM 8200 Intel Pentium M and Celeron M processors Compact Board With LVDS LCD TV Out Ethernet Audio CompactFlash TM USB 4 COMs Mini PCI PCM 8200 Rev A Manual 1st Ed Apr 2004 ...

Страница 2: ...is manual is intended to be accurate and reliable However the original manufacturer assumes no responsibility for its use or for any in fringements upon the rights of third parties that may result from its use The material in this document is for product information only and is subject to change without notice While reasonable efforts have been made in the preparation of this document to assure it...

Страница 3: ...l CompactFlash is a trademark of the Compact Flash Association l Intel Pentium 4 and Celeron are trademarks of Intel Corporation l Microsoft Windows is a registered trademark of Microsoft Corp l ITE is a trademark of Integrated Technology Express Inc l IBM PC AT PS 2 and VGA are trademarks of International Business Machines Corporation l SoundBlaster is a trademark of Creative Labs Inc ...

Страница 4: ...rd please make sure that the following materials have been shipped 1 CPU Card 1 Quick Installation Guide 1 CD ROM for manual in PDF format and drivers 1 Jumper cap If any of these items should be missing or damaged please contact your distributor or sales representative immediately ...

Страница 5: ... List of Jumpers 2 7 2 5 List of Connectors 2 8 2 6 Setting Jumpers 2 10 2 7 LCD Voltage Selection JP2 2 11 2 8 Audio Out Selection JP3 2 11 2 9 Clear CMOS JP4 2 11 2 10 COM2 RS 232 422 485 Selection JP5 JP6 JP7 2 11 2 11 COM2 Ring 5V 12V Selection JP8 2 12 2 12 Channel2 LVDS Connector CN1 2 12 2 13 VGA Display Connector CN2 2 13 2 14 Front Panel Connector CN3 2 13 2 15 FAN Connector CN4 2 13 2 16...

Страница 6: ...7 IrDA Connector CN17 2 19 2 28 Digital I O 2 Connector CN18 2 19 2 29 Keyboard Mouse Connector CN19 2 20 2 30 RS 232 422 485 Serial Port Connector CN20 2 21 2 31 Digital I O 1 Connector CN21 2 22 Chapter 3 Award BIOS Setup 3 1 System Test and Initialization 3 2 3 2 Award BIOS Setup 3 3 3 3 Standard CMOS Features 3 6 3 4 Advanced BIOS Features 3 7 3 5 Advanced Chipset Features 3 8 3 6 Integrated P...

Страница 7: ... Exit Setup 3 17 3 15 Exit without Saving 3 18 Chapter 4 Driver Installation 4 1 Installation 4 3 Appendix A I O Information A 1 I O Address Map A 2 A 2 1st MB Memory Address Map A 2 A 3 IRQ Mapping Chart A 3 A 4 DMA Channel Assignments A 3 Appendix B Programming the Watchdog Timer B 1 Programming B 2 B 2 IT8712 Watchdog Timer Initial Program B 6 ...

Страница 8: ...Compact Board P C M 8 2 0 0 Chapter 1 General Information 1 1 General Information Chapter 1 ...

Страница 9: ...c ability but with extreme low power consumption This feature is especially suitable for Video Automation controller Multimedia application Besides the excellent CPU performance PCM 8200 also provides multiple display functions it allows user to display different content on CRT LCD CRT DVI CRT TV LCD DVI or LCD TV this feature opens a shortcut to multi display demander with cheaper solution PCM 82...

Страница 10: ...41 Ethernet controller stands for fast 1 Gigabyte transferring speed All featured expansion interfaces have been enhanced in this 8 x 5 75 computer board The PCM 8200 is the ideal choice for dust temperature sensitive high end Industrial Automation application For space constrained environments such automobile PCM 8200 is also a perfect fit Even is great for KIOSK and POS implementations with low ...

Страница 11: ...based Intel Pentium M and Celeron M processors Or onboard Low Voltage Intel Pentium M processor Supports 48 bit Dual channel LVDS TFT panels AC 97 3D surround 5 1 channel Audio Supports Type II CompactFlash Memory Supports Type III Mini PCI and PCI slots 4 USB 2 0 Mini PCI Digital I O TV Out SATA ...

Страница 12: ...l System 184 pin DDR SDRAM DIMM x 1 Max 1GB PC 266 333 l Chipset Intel 855GME 6300ESB l I O Chipset ITE IT8712F l BIOS Award 512 KB FLASH ROM l Ethernet Intel 82551ER 82541GI Optional 10 100 1000Base T RJ 45 connector x 1 l SSD Type II CompactFlash slot l Watchdog Timer Generate a system reset l Expansion Interface Type III Mini PCI x 1 PCI slot x 1 l Battery Lithium battery l H W Status Monitorin...

Страница 13: ...ze Shared memory up to 64MB with Dynamic Video Memory Technology l Resolution Up to 1280 X 1024 32bpp colors for CRT Up to 1280 X 1024 24bpp colors for LCD l Supports CRT LCD CRT DVI CRT TV LCD DVI and LCD TV simultaneous display l Supports CRT LCD CRT DVI CRT TV LCD DVI and LCD TV dual view l Supports screen image rotation I O l MIO EIDE UDMA 100 x 1 Serial ATA x 2 FDD x 1 KB Mouse x 1 RS 232 x 3...

Страница 14: ...al Information 1 7 l IrDA One IrDA Tx Rx header l Audio Mic in Line in Line out Speaker Out 5 1 output l USB One 5 x 2 and one 9 x 2 1 pin headers support 4 USB 2 0 ports One for Embedded USB DOM l Digital I O Supports 8 in 8 out 16 in or 16 out ...

Страница 15: ...Installation Guide Chapter 2 Part No 2007820010 Printed in Taiwan Apr 2004 Notice The Quick Installation Guide is derived from Chapter 2 of user manual For other chapters and further installation instructions please refer to the user manual CD ROM that came with the product ...

Страница 16: ...ile the power is on because a sudden rush of power can damage sensitive electronic components Always ground yourself to remove any static charge before touching the board Modern electronic devices are very sensitive to static electric charges Use a grounding wrist strap at all times Place all electronic components on a static dissipative surface or in a static shielded bag when they are not in the...

Страница 17: ...Compact Board P C M 8 2 0 0 Chapter 2 Quick Installation Guide 2 3 2 2 Location of Connectors and Jumpers Component Side ...

Страница 18: ...Compact Board P C M 8 2 0 0 Chapter 2 Quick Installation Guide 2 4 Solder Side ...

Страница 19: ...Compact Board P C M 8 2 0 0 Chapter 2 Quick Installation Guide 2 5 2 3 Mechanical Drawing Component Side ...

Страница 20: ...Compact Board P C M 8 2 0 0 Chapter 2 Quick Installation Guide 2 6 Solder Side ...

Страница 21: ...nfigure your system to suit your application The table below shows the function of each of the board sjumpers Jumpers Label Function JP1 Reserve JP2 LCD Voltage Selection JP3 Audio Out Selection JP4 Clear CMOS JP5 COM2 RS 232 422 485 Selection JP6 COM2 RS 232 422 485 Selection JP7 COM2 RS 232 422 485 Selection JP8 COM2 Ring 5V 12V Selection ...

Страница 22: ...splay Connector CN3 Front Panel Connector CN4 System Fan Connector CN5 Channel1 LVDS Connector CN6 ATX Power Connector CN7 LAN LED Connector CN8 Option PME Connector CN9 Audio Connector CN10 TV Out Connector CN11 DVI Connector CN12 Audio 5 1 Channel SPDIF Connector CN13 Embedded USB Connector CN14 USB Connector CN15 LPT Port Connector CN16 CPU Fan Connector CN17 IrDA Connector CN18 Digital I O 2 C...

Страница 23: ...P C M 8 2 0 0 Chapter 2 Quick Installation Guide 2 9 IDE1 EIDE Connector LAN1 Ethernet Connector PCI1 PCI Slot MPCI1 Mini PCI Slot CFD1 CompactFlash Slot DIMM1 DIMM Slot SATA1 Master Serial ATA SATA2 Slave Serial ATA ...

Страница 24: ...them To close a jumper you connect the pins with the clip To open a jumper you remove the clip Sometimes a jumper will have three pins labeled 1 2 and 3 In this case you would connect either pins 1 and 2 or 2 and 3 1 2 3 Open Closed Closed 2 3 A pair of needle nose pliers may be helpful when working with jumpers If you have any doubts about the best hardware configuration for your application cont...

Страница 25: ...6 W Amplifier Default 2 9 Clear CMOS JP4 Warning To avoid damaging the computer always turn off the power supply before setting Clear CMOS Before turning on the power supply set the jumper back to Normal JP4 Function 1 2 Protected Default 2 3 Clear 2 10 COM2 RS 232 422 485 Selection JP5 JP6 JP7 JP5 JP6 JP7 Function 1 3 2 4 1 3 2 4 1 2 RS 232 Default 3 5 4 6 3 5 4 6 3 4 RS 422 3 5 4 6 3 5 4 6 5 6 R...

Страница 26: ... Selection JP8 JP8 Function 1 2 12V 3 4 5V 5 6 Ring Default 2 12 Channel2 LVDS Connector CN1 Pin Signal Pin Signal 1 LVDS_TX1 2 LVDS_TX1 3 GND 4 GND 5 LVDS_TXCLK 6 LVDS_TXCLK 7 GND 8 PPVCC 9 PPVCC 10 PPVCC 11 LVDS_TX2 12 LVDS_TX2 13 GND 14 GND 15 LVDS_TX0 16 LVDS_TX0 17 LVDS_TX3 18 LVDS_TX3 ...

Страница 27: ...5 BLUE 6 N C 7 N C 8 DDCDAT 9 GND 10 HSYNC 11 GND 12 VSYNC 13 GND 14 DDCCLK 15 GND 16 N C 2 14 Front Panel Connector CN3 Pin Signal Pin Signal 1 Power On Button 2 Power On Button 2 IDE LED 4 IDE LED 5 External Buzzer 6 External Buzzer 7 Power LED 8 Power LED 9 Reset Switch 10 Reset Switch 2 15 FAN Connector CN4 Pin Signal 1 GND 2 5V 3 Speed Sense ...

Страница 28: ...D 4 GND 5 LVDS_TXCLK 6 LVDS_TXCLK 7 GND 8 PPVCC 9 PPVCC 10 PPVCC 11 LVDS_TX2 12 LVDS_TX2 13 GND 14 GND 15 LVDS_TX0 16 LVDS_TX0 17 LVDS_TX3 18 LVDS_TX3 19 ENBKL 20 N C 2 17 ATX Power Connector CN6 Pin Signal Pin Signal 1 N C 11 N C 2 N C 12 12V 3 GND 13 GND 4 5V 14 PS_ON 5 GND 15 GND 6 5V 16 GND 7 GND 17 GND 8 POWER OK 18 5V 9 5VSB 19 5V 10 12V 20 5V ...

Страница 29: ...0 LED 4 Speed 100 LED 5 Speed 1000 LED 6 Speed 1000 LED 2 19 Option PME Connector CN8 Pin Signal 1 5VSB 2 GND 3 PME 4 SMB_DATA 5 SMB_CLK 2 20 Audio Connector CN9 Pin Signal Pin Signal 1 MIC_IN 2 MIC_ 2 5V 3 LINE_IN_GND 4 CD_GND 5 LINE_IN_L 6 CD_IN_L 7 LINE_IN_R 8 CD_GND 9 LINE_IN_GND 10 CD_IN_R 11 LINE_OUT_L 12 LINE_OUT_R 13 LINE_OUT_GND 14 LINE_OUT_GND ...

Страница 30: ...in Signal Pin Signal 1 Y 2 CVBS 3 GND 4 GND 5 C 6 N C 7 GND 8 N C 2 22 DVI Connector CN11 Pin Signal Pin Signal 1 DVI_TX1 2 LVDS_TX1 3 GND 4 GND 5 DVI_TXCLK 6 DVI_TXCLK 7 GND 8 5V 9 HotPlug_Detect 10 5V 11 DVI_TX2 12 DVI_TX2 13 GND 14 GND 15 DVI_TX0 16 DVI_TX0 17 N C 18 N C 19 I2C_DATA 20 I2C_CLK ...

Страница 31: ...nt OUT L 4 GND 5 Surround OUT R 6 GND 7 Surround OUT L 8 GND 9 LFE OUT 10 GND 11 Center OUT 12 GND 13 SPDIF OUT 14 SPDIF IN 2 24 USB Connector CN13 CN14 CN13 For Embedded USB DOM Pin Signal Pin Signal 1 N C 2 N C 3 N C 4 N C 5 5V 6 5V 7 USBD3 8 USBD4 9 USBD3 10 USBD4 11 GND 12 GND 13 N C 14 N C 15 5V 16 N C 17 N C 18 N C CN14 Pin Signal Pin Signal 1 5V 2 GND ...

Страница 32: ...D 10 5V 2 25 LPT Port Connector CN15 Pin Signal Pin Signal 1 STROBE 2 AFD 3 DATA0 4 ERROR 5 DATA1 6 INIT 7 DATA2 8 SLIN 9 DATA3 10 GND 11 DATA4 12 GND 13 DATA5 14 GND 15 DATA6 16 GND 17 DATA7 18 GND 19 ACK 20 GND 21 BUSY 22 GND 23 PE 24 GND 25 SELECT 26 N C 2 26 FAN Connector CN16 Pin Signal 1 GND 2 5V 3 Speed Sense ...

Страница 33: ... and address is 801H The pin definitions are illustrated below Pin Signal Pin Signal 1 Digital IN OUT 2 Digital IN OUT 3 Digital IN OUT 4 Digital IN OUT 5 Digital IN OUT 6 Digital IN OUT 7 Digital IN OUT 8 Digital IN OUT 9 5V 10 GND The pin definitions and registers mapping are illustrated below Address 801H 4 in 4 out Pin1 Pin2 Pin3 Pin4 Pin5 Pin6 Pin7 Pin8 GPI 27 GPI 26 GPI 25 GPI 24 GPO 23 GPO ...

Страница 34: ...6 Pin7 Pin8 GPI 27 GPI 26 GPI 25 GPI 24 GPI 23 GPI 22 GPI 21 GPI 20 MSB LSB 8 out Pin1 Pin2 Pin3 Pin4 Pin5 Pin6 Pin7 Pin8 GPO 27 GPO 26 GPO 25 GPO 24 GPO 23 GPO 22 GPO 21 GPO 20 MSB LSB 2 29 Keyboard Mouse Connector CN19 Pin Signal Pin Signal 1 KB_DATA 2 KB_CLK 3 GND 4 5V 5 MS DATA 6 MS_CLK 7 N C ...

Страница 35: ...D1 2 DSR1 3 RXD1 4 RTS1 5 TXD1 6 CTS1 7 DTR1 8 RI1 9 GND 10 N C 11 DCD2 422TXD 485DATA 12 DSR2 13 RXD2 422RXD 14 RTS2 15 TXD2 422TXD 485DATA 16 CTS2 17 DTR2 422RXD 18 RI2 12V 19 GND 20 N C 21 DCD3 22 DSR3 23 RXD3 24 RTS3 25 TXD3 26 CTS3 27 DTR3 28 RI3 29 GND 30 N C 31 DCD4 32 DSR4 33 RXD4 34 RTS4 35 TXD4 36 CTS4 37 DTR4 38 RI4 39 GND 40 N C ...

Страница 36: ... IN OUT 3 Digital IN OUT 4 Digital IN OUT 5 Digital IN OUT 6 Digital IN OUT 7 Digital IN OUT 8 Digital IN OUT 9 5V 10 GND Address 800H 4 in 4 out Pin1 Pin2 Pin3 Pin4 Pin5 Pin6 Pin7 Pin8 GPI 17 GPI 16 GPI 15 GPI 14 GPO 13 GPO 12 GPO 11 GPO 10 MSB LSB 8 in Pin1 Pin2 Pin3 Pin4 Pin5 Pin6 Pin7 Pin8 GPI 17 GPI 16 GPI 15 GPI 14 GPI 13 GPI 12 GPI 11 GPI 10 MSB LSB 8 out Pin1 Pin2 Pin3 Pin4 Pin5 Pin6 Pin7 ...

Страница 37: ...Compact Board P C M 8 2 0 0 Chapter 3 Award BIOS Setup 3 1 Award BIOS Setup Chapter 3 ...

Страница 38: ...key to continue the boot up sequence System configuration verification These routines check the current system configuration against the values stored in the CMOS memory If they do not match the program outputs an error message You will then need to run the BIOS setup program to set the configuration information in memory There are three situations in which you will need to change the CMOS setting...

Страница 39: ... retains the Setup information when the power is turned off Entering setup Power on the computer and press Del immediately This will allow you to enter Setup Standard CMOS Features Use this menu for basic system configuration Date time IDE etc Advanced BIOS Features Use this menu to set the advanced features available on your system Advanced Chipset Features Use this menu to change the values in t...

Страница 40: ... PC Frequency Voltage Control This menu shows you the display of frequency voltage Control Load Fail Safe Defaults Use this menu to load the BIOS default values for the minimal stable performance for your system to operate Load Optimized Defaults Use this menu to load the BIOS default values that are factory settings for optimal performance system operations While AWARD has designated the custom B...

Страница 41: ...Compact Board P C M 8 2 0 0 Chapter3 Award BIOS Setup 3 5 Exit Without Saving Abandon all CMOS value changes and exit setup ...

Страница 42: ...S Features option from the INITIAL SETUP SCREEN menu the screen shown below is displayed This standard Setup Menu allows users to configure system components such as date time hard disk drive floppy drive and display Once a field is highlighted on line help information is displayed in the right box of the Menu screen ...

Страница 43: ... Award BIOS Setup 3 7 3 4 Advanced BIOS Features By choosing the Advanced BIOS Features option from the INITIAL SETUP SCREEN menu the screen below is displayed This sample screen contains the manufacturer s default values for the PCM 8200 ...

Страница 44: ...ard BIOS Setup 3 8 3 5 Advanced Chipset Features By choosing the Advanced Chipset Features option from the INITIAL SETUP SCREEN menu the screen below is displayed This sample screen contains the manufacturer s default values for the PCM 8200 ...

Страница 45: ...er3 Award BIOS Setup 3 9 3 6 Integrated Peripherals By choosing the Integrated Peripherals from the INITIAL SETUP SCREEN menu the screen below is displayed This sample screen contains the manufacturer s default values for the PCM 8200 ...

Страница 46: ...er3 Award BIOS Setup 3 10 3 7 Power management Setup By choosing the Power Management Setup from the INITIAL SETUP SCREEN menu the screen below is displayed This sample screen contains the manufacturer s default values for the PCM 8200 ...

Страница 47: ...er3 Award BIOS Setup 3 11 3 8 PnP PCI configuration By choosing the PnP PCI configurations from the Initial Setup Screen menu the screen below is displayed This sample screen contains the manufacturer s default values for the PCM 8200 ...

Страница 48: ... Chapter3 Award BIOS Setup 3 12 3 9 PC Health Status By choosing the PC Health Status from the Initial Setup Screen menu the screen below is displayed This sample screen contains the manufacturer s default values for the PCM 8200 ...

Страница 49: ...Award BIOS Setup 3 13 3 10 Frequency Voltage control By choosing the Frequency Voltage Control from the Initial Setup Screen menu the screen below is displayed This sample screen contains the manufacturer s default values for the PCM 8200 ...

Страница 50: ... 3 14 3 11 Load Fail Safe Defaults When you press Enter on this item you get a confirmation dialog box with a message similar to Load Fail Safe Default Y N Pressing Y loads the BIOS default values for the most stable minimal performance system operations ...

Страница 51: ...3 12 Load Optimized Defaults When you press Enter on this item you get a confirmation dialog box with a message similar to Load Optimized Defaults Y N Pressing Y loads the default values that are manufacturer s settings for optimal performance system operations ...

Страница 52: ...ons of the setup menus while the user password only allows entry to the program but not modify options To abort the process at any time press Esc In the Security Option item in the BIOS Features Setup screen select System or Setup System Enter a password each time the system boots and when ever you enter Setup Setup Enter a password whenever you enter Setup NOTE To clear the password simply press ...

Страница 53: ...t this option and press Enter the values entered in the setup utilities will be recorded in the chipset s CMOS memory The microprocessor will check this every time you turnon your system and compare this to what it finds as it checks the system This record is required for the system to operate ...

Страница 54: ...t Board P C M 8 2 0 0 Chapter3 Award BIOS Setup 3 18 3 15 Exit without saving Selecting this option and pressing Enter allows you to exit the Setup program without recording any new value or changing old one ...

Страница 55: ...Compact Board P C M 8 2 0 0 Chapter 4 Driver Installation 4 1 Driver Installation Chapter 4 ...

Страница 56: ... Step 1 Install Intel INF Update for Windows 9X 2003 Step 2 Install Intel Extreme Graphics2 Driver Step 3 Install Intel LAN Driver Step 4 Install Realtek AC97 codec Driver USB 2 0 Drivers are available for download using Windows Update for both Windows XP and Windows 2000 For additional information regarding USB 2 0 support in Windows XP and Windows 2000 please visit www microsoft com hwdev usb Pl...

Страница 57: ...tall Intel Extreme Graphics 2 Driver 1 Click on the Intel Extreme Graphics 2 Driver folder and then double click on the win2k_xp141 exe 2 Follow the instructions that the window will show you 3 The system will help you install the driver automatically Step 3 Install Intel LAN Driver There re two folders after you enter the Step 3 folder Based on the board that you purchase you can install either I...

Страница 58: ... Click Next Yes Finish and the window will show you how to finish the installation process Intel LAN 825xx Driver V8 3 1 Click on the Intel LAN 825xx Driver V8 3 folder and then double click on the pro2kxp exe 2 Follow the instructions that the window will show you 3 The system will help you install the driver automatically Step 4 Install Realtek AC97 codec Driver 1 Click on the Realtek AC97 codec...

Страница 59: ...Compact Board P C M 8 2 0 0 Appendix A I O Information A 1 I O Information Appendix A ...

Страница 60: ...ontroller 2 0C0 0DF 0F0 0FF Math Coprpcessor 0F0 0FF 170 177 Secondary IDE Channel 170 177 1F0 1F7 Primary IDE Channel 1F0 1F7 278 27F Parallel Printer Port 2 LPT3 278 27F 2E8 2EF Serial Port 4 2E8 2EF 2F8 2FF Serial Port 2 2F8 2FF 378 37F Parallel Printer Port 1 LPT2 378 37F 3B0 3BF Monochrome Display and Printer Adapter LPT1 3B0 3BF 3D0 3DF EGA VGA card 3D0 3DF 3E8 3EF Serial Port 3 3E8 3EF 3F0 ...

Страница 61: ...m IRQ2 Cascade to IRQ Controller IRQ10 COM3 IRQ3 COM2 IRQ11 COM4 IRQ4 COM1 IRQ12 PS 2 mouse IRQ5 Unused IRQ13 FPU IRQ6 Floppy Disk Controller IRQ14 Primary IDE IRQ7 Printer IRQ15 Secondary IDE A 4 DMA Channel Assignments DMA Channel Function 0 Available 1 Available 2 Standard Floppy Disk Controller 3 Available 4 Direct Memory Access Controller 5 Available 6 Available 7 Available ...

Страница 62: ...Compact Board P C M 8 2 0 0 Appendix B Programming the Watchdog Timer B 1 Programming the Watchdog Timer Appendix B ...

Страница 63: ...l watchdog timer program is also attached based on which you can develop customized program to fit your application Configuring Sequence Description After the hardware reset or power on reset the ITE 8712 enters the normal mode with all logical devices disabled except KBC The initial state enable bit of this logical device KBC is determined by the state of pin 121 DTR1 at the falling edge of the s...

Страница 64: ...e operations are to be performed during Wait for Key state To ensure the initial state of the key check logic it is necessary to perform four write opera tions to the Special Address port 2EH Two different enter keys are provided to select configuration ports 2Eh 2Fh of the next step 2 Modify the Data of the Registers All configuration registers can be accessed after entering the MB PnP Mode Befor...

Страница 65: ...igure control register Index 02h to 1 to exit the MB PnP Mode WatchDog Timer Configuration Registers Configure Control Index 02h This register is write only Its values are not sticky that is to say a hardware reset will automatically clear the bits and does not require the software to clear them ...

Страница 66: ... 0 0 Appendix B Programming the Watchdog Timer B 5 WatchDog Timer Control Register Index 71h Default 00h WatchDog Timer Configuration Register Index 72h Default 00h WatchDog Timer Time out Value Register Index 73h Default 00h ...

Страница 67: ... Main CALL Enter_Configuration_mode CALL Check_Chip mov cl 7 call Set_Logic_Device time setting mov cl 10 10 Sec dec al Watch_Dog_Setting Timer setting mov al cl mov cl 73h call Superio_Set_Reg Clear by keyboard or mouse interrupt mov al 0f0h mov cl 71h call Superio_Set_Reg unit is second mov al 0C0H mov cl 72h call Superio_Set_Reg ...

Страница 68: ...e Initial_OK CALL Exit_Configuration_mode MOV AH 4Ch INT 21h Enter_Configuration_Mode PROC NEAR MOV SI WORD PTR CS Offset Cfg_Port MOV DX 02Eh MOV CX 04h Init_1 MOV AL BYTE PTR CS SI OUT DX AL INC SI LOOP Init_1 RET Enter_Configuration_Mode ENDP Exit_Configuration_Mode PROC NEAR MOV AX 0202h CALL Write_Configuration_Data ...

Страница 69: ..._Mode ENDP Check_Chip PROC NEAR MOV AL 20h CALL Read_Configuration_Data CMP AL 87h JNE Not_Initial MOV AL 21h CALL Read_Configuration_Data CMP AL 12h JNE Not_Initial Need_Initial STC RET Not_Initial CLC RET Check_Chip ENDP Read_Configuration_Data PROC NEAR MOV DX WORD PTR CS Cfg_Port 04h OUT DX AL ...

Страница 70: ...n_Data ENDP Write_Configuration_Data PROC NEAR MOV DX WORD PTR CS Cfg_Port 04h OUT DX AL XCHG AL AH MOV DX WORD PTR CS Cfg_Port 06h OUT DX AL RET Write_Configuration_Data ENDP Superio_Set_Reg proc near push ax MOV DX WORD PTR CS Cfg_Port 04h mov al cl out dx al pop ax inc dx out dx al ret Superio_Set_Reg endp Set_Logic_Device proc near ...

Страница 71: ...push ax push cx xchg al cl mov cl 07h call Superio_Set_Reg pop cx pop ax ret Set_Logic_Device endp Select 02Eh Index Port 02Fh Data Port Cfg_Port DB 087h 001h 055h 055h DW 02Eh 02Fh END Main Note Interrupt level mapping 0Fh Dh not valid 0Ch IRQ12 03h IRQ3 02h not valid 01h IRQ1 00h no interrupt selected ...

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