– All Rights Reserved. Manual third edition Mar.15,1998 The information in this document is subject to change without prior notice in order to improve reliability, design and function and does not represent a facturer. In no event will the manufacturer be liable for direct, indirect, special, incidental, or consequential damages arising out of the use or inability to use the product or documentation, even if advised of the possibility of such This document contains proprietary information protected by copyright. All rights are reserved. No part of this manual may be reproduced by any mechanical, electronic, or other means in any form without prior written permission of the manufacturer. ROCKY-P218A is registered trademarks of Acquire Inc.,IBM PC is a registered trademark of International Business Machines Corporation. Intel is a registered trademark of Intel Corporation. AMI is registered trademarks of Megatrends, Inc. Other product names mentioned herein are used for identification purposes only and may be trademarks and/or registered trademarks of their respective companies. American Trademarks damages. commitment on the part of the manu @Copyright 1998 SBC Pentium® II & Sound P218A ROCKY Contents 3 1.1Specifications..............................................................................4 1.2What You Have...........................................................................5 6 2.1..............................................................6 2.2...................................................................................8 2.3............................................. 9 2.4............................................................. 9 2.5................................................................9 2.6Watch-Dog Timer...................................................................... 2.7DiskOnChip™ Flash Disk............................................................ 2.8.................................................................... 2.9........................................................... 3.1...................................................... 3.2................................................ 3.3Parallel Port............................................................................... 3.4Serial Ports................................................................................ 1 14 14 13PCI E-IDE Disk Drive Connector 12Floppy Disk Drive Connector 12.........................................................3. Connection 11Creative Sound Function 11Clear CMOS Setup 10 10 System Memory DRAM BIOS Flash Type Setting Setting the CPU of ROCKY-P218A Unpacking ROCKY-P218A's Layout ............................................................2. Installation ..........................................................1. Introduction 3.5....................................................... 3.6ernal Switches and Indicators............................................... 3.7....................................................................... 3.8IrDA Infrared Interface Port ....................................................... 3.9.......................................................................... 3.10 Sound Function Connectors ...................................................... 4.1Getting Start.............................................................................. 4.2.............................................................. 4.3............................................................. 4.4............................................................ 4.5....................................................................... 4.6......................................................... 4.7.................................................... 4.8 Hardware Monitor Setup …………………………………………… 2 Appendix A. Watch-Dog Timer 2 29.............................. 27..................................................Key Function5. E 26 25PCI / PLUG AND PLAY Setup 24Power Management Setup 23Peripheral Setup 22anced Chipset SetupAdv 21Advanced CMOS Setup 20Standard CMOS Setup 19 19.................................................4. AMI BIOS Setup 17 17Fan Connector 17 16External Speaker 16Ext 15Keyboard/Mouse Connector 1 Introduction Welcome to the ROCKY-P218A Pentium® II & Creative Sound ISA/PCI form factor board, which comes equipped with high performance multi-mode I/O, designed for the system VARs that want to provide all the performance, reliability, and quality at a reasonable price. This board built-in ™ software utility. The DOC currently is available from 2MB to ™ An advanced high performance super AT I/O chip – Winbond IDE interface are compatible with IBM PC/AT and XT In addition, the ROCKY-218A provides Creative Sound capability. ViBRA 16X which provides full-featured,16-bit compatibility,wave-table WaveSynth™ Creative 3D Stereo Technology™ and full-duplex capabilities. which is 100% ISA/PCI compatible 3 standard. chipset.with PCI 2.1 ROCKY-P218A uses the advanced INTEL Chipset,440LX Enhancement synthesis with Creative audio with 100% Sound Blaster 16 The sound chip is architecture's. UARTs are compatible with the NS16C550. The parallel port and W83977TF is used in the ROCKY-P218A board. Both on-chip same DOC socket as an alternative solution. can be used in the72MB. There also have PROMDISK-Chip disk. User can use any DOS command without any extra application. The DOC Flash Disk is 100% compatible to hard (DOC) Flash Disk for embeddedDiskOnChip manufacturers, integrators, or performance Pentium® II Processor and advanced high Single Board Computer. The ROCKY-P218A board is an 1.1 ons : · : Pentium® II 233 - 333Mhz Processor · : ISA bus and PCI 32-bit local bus,PCI 2.1 standard ·DMA channels : 7 ·Interrupt levels : 15 · : Intel 440LX ·Real-time clock/calendar : in 440LX chipset, backup by industrial Li-battery,3V/850mAH. ·RAM memory EDO RAM module. The max. memory is up to 384MB. · ·Ultra DMA/33 IDE Interface : up to four PCI Enhance IDE hard drives. The Ultra DMA/33 IDE can handle data transfer up to 33MB/s. The best of all is that is new technology is compatible with change for customer’s current accessory. ·Floppy disk drive interface : two 2.88 MB, 1.44MB, 1.2MB, 720KB, or 360KB floppy disk drives. · : NS16C550 compatible ·Bi-directional Parallel Port ·Built-in LM78 to monitor power supply voltage and fan speed status. ·IrDA port : Support Serial Infrared(SIR) and Amplitude Shift ·USB port : Support two USB ports for future expansion. ·Watch-dog timer : can be set by 1,2,10,20,110 or 220 seconds trigger the timer. Your program use hex 043 and 443 to control the 4 watch-dog and generate a system reset. period. Reset or NMI was generated when CPU did not periodically Keyed IR(ASKIR) interface. UARTsTwo high speed Series ports existing ATA-2 IDE specifications. So there is no need to do any : 512KB Pipelined Burst SRAM in CPU.Second Cache memory : Three 168-pin DIMM sockets support SDRAM and Chipset Bus CPU Specificati ·Flash Disk - ™:or PROMDISK-Chip™ : The Flash Disk provide 100% compatible with hard disk. The built-in Transparent Flash Block Management and Space Reclamation will let customer to use the Flash Disk with DOS command, no need any extra software utility. · ·Mouse : PS/2 Mouse Port on-board. · : +5V @ 7.5A ( Pentium® II 300MHz,32MB EDO RAM) +12V @ 240mA ,-12V @40mA ·Operating Temperature : 0 ° ~ 55 ° 1.2 In addition to this includes the following items: · ROCKY-218A Pentium · · · If any of these items is missing or damaged, contact the dealer from whom you pur product in the future. 5 materials and carton in case you want to ship or store the chased the product. Save the shipping Cable 6-pin Mini-Din to 5-pin Din Keyboard and Mouse Adapter FDD/HDD Cable Printer/RS-232 Cable Single Board Computer® II & Sound , the ROCKY-P218A packageUser's Manual What You Have C ( CPU needs Cooler) Power Consumption Keyboard connector TrueFFS DiskOnChip 2 Installation information that you should be careful is described. The 2.1– < reference next page > 6 P218A's LayoutROCKY and watch dog timer, are also included. configuration, such as CPU type selection, system clock setting, jumpers and switches setting for the ROCKY-P218A's the layout of ROCKY-P218A is shown, and the unpacking This chapter describes how to install the ROCKY-P218A. At first, 2.2Unpacking 7 electricity. while unpacking, as well as during installation. It is very important that the instructions be followed correctly, to avoid Do this only with the board place on a firm flat surface. Note : DO NOT APPLY POWER TO THE BOARD IF IT HAS 8 Computer. You are now ready to install your ROCKY-P218A Single Board BEEN DAMAGED. socketed IC's to make sure that they are properly seated. Again inspect the board for damage. Press down on all the up. place it only on a grounded anti-static surface component side After opening the cardboard carton, exact the system board and shipping and handing damages on the board before processing. handling may cause damage to your board. Be sure there are no Inspect the cardboard carton for obvious damage. Shipping and grounded at the same point as the anti-static mat. The operator should be wearing an anti-static wristband, The system board should be done on a grounded anti-static mat. static damage, and to successfully install the board. In this section, we describe the precautions you should take electronic components that can be easily damaged by static Your ROCKY-P218A Single Board Computer contains sensitive 2.3 Setting the CPU of ROCKY-P218A · CPU Clock Setting : CPU Speed/Clock JP3 1-3 60MHz 66MHz 2-4 CPU to Bus Multiple : · Multiplier 1-2 3-4 5-6 7-8 2.0 x CLOSE CLOSE CLOSE CLOSE 2.5 x CLOSE CLOSE OPEN CLOSE 3.0 x CLOSE OPEN CLOSE CLOSE 3.5 x CLOSE OPEN OPEN CLOSE 4.0 x OPEN CLOSE CLOSE CLOSE 4.5 x OPEN CLOSE OPEN CLOSE 5.0 x OPEN OPEN CLOSE CLOSE CPU Frequency = CPU Clock x Multiplier for example 2.4 BIOS Flash Type Setting · JP10 : Flash Type Setting DESCRIPTION 2-35V Flash 1-2 The total capacity is from 8MB to 384MB. 9 only one DIMM module and can be populated in any order. Customer can use RAM ,8MB,16MB,32MB,64MB,128MB memory modules. EDO There are three 168-pin DIMM sockets to accept SDRAM or 2.5 System Memory DRAM 12V Flash JP10 designed to handle the setting. ROM,one is 12V programming and the other is 5V. JP10 is There are two kind of Flash Chips can be used as BIOS Pentium® II 266MHz = 66MHz CPU Clock x 4.0 JP1 : JP3 : 2.6 Watch-Dog Timer signal to start again, or activate NMI to CPU. The Watch-Dog JP9 : Watch-Dog Active Type Setting · JP9DESCRIPTION 2-3RESET WHEN WDT TIME-OUT 1-2ACTIVATE NMI TO CPU WHEN WDT TIME- OUT DISABLE WDT OPEN · JP11 : WDT Time-Out Period PERIOD 1-2 3-4 5-6 7-8 1 sec. OPEN OPEN CLOSE OPEN OPEN OPEN CLOSE CLOSE 2 sec. 10 sec. OPEN CLOSE OPEN OPEN 20 sec. OPEN CLOSE OPEN CLOSE CLOSE OPEN OPEN OPEN CLOSE OPEN OPEN CLOSE 2.7 ™ Flash Disk The ™ And ‘t need any extra software utility. It is just “”,easy and reliable. Right now the DOC is available from 2MB to 72MB.There also have PROMDISK-Chip™ memory address. · JP12 1-2 3-4 10 D000H C800H Address DiskOnChip Memory Address Setting JP12 : DiskOnChip will only share 8KB used with the same socket. The can be playplug and DOS.Customer don M-Systems. Because the DOC is 100% compatible to hard disk Flash Disk Chip(DOC) is produced byDiskOnChip DiskOnChip 220 sec. 110 sec. Timer is disable by reading port 043H. assume the program operation is abnormal and will issue a reset be triggered before the time-out period ends, otherwise it will The Watch-Dog Timer is enabled by reading port 443H. It should 5-6 If want to clear the CMOS Setup(for example forgot the again.),you should close the JP4 pin 2-3 about 3 open again. Set back to normal operation · JP4 : Clear CMOS Setup (Reserve Function) JP4 DESCRIPTION 1-2 Normal Operation 2-3 Clear CMOS Setup The on board Creative Sound provide a 100% Sound Blaster 16 compatible function. You can use the JP5 to enable or disable the sound function. JP5 : Enable/Disable on board Sound function · JP5 DESCRIPTION CLOSE Enable Sound Function OPEN – 16-bit I/O – SB I/O : Default setting : Adlib : Default setting : Default Setting : IRQ : IRQ5,or IRQ7,or IRQ9,or IRQ10 Default Setting : Default Setting : Channel 1 and 3 – 16-bit I/O Decoding, PnP ID – Gameport : 11 200 to 20Fh(any address of I/O space) CTL7005 Gameport ResourcesDevice 1 Channel 0,or Channel 1,or Channel 3DMA : IRQ5 330-331h 300-301h,or 310-311h,or 320-321h,or 330-331hMPU-401 : 388-38Bh 388-38Bh,or 38C-38Fh,or 390-393h,or 394-397h 220-22Fh 220-22Fh,or 240-24Fh,or 260-26Fh,or 280-28Fh CTL0043Decodin, PnP ID Sound Blaster ResourcesDevice 0 The Creative Chip will share some I/O resource as follows, Disable Sound Function 2.9 Creative Sound Function mode,close pin 1-2. seconds,then password you should clear the setup and then set the password 2.8 Clear CMOS Setup D800H Default 3 Connection 3.1Floppy Disk Drive Connector CN3 : FDC CONNECTOR · 1GROUND2REDUCE WRITE 3GROUND4N/C 5GROUND6N/C 7GROUND8 9GROUNDMOTOR ENABLE A# GROUNDDRIVE SELECT B# GROUNDDRIVE SELECT A# GROUNDMOTOR ENABLE B# GROUNDDIRECTION# GROUNDSTEP# GROUNDWRITE DATA# GROUNDWRITE GATE# GROUNDTRACK 0# GROUNDWRITE PROTECT# GROUNDREAD DATA# GROUND GROUNDDISK CHANGE# 12 3433 SIDE 1 SELECT#3231 3029 2827 2625 2423 2221 2019 1817 1615 1413 1211 10 INDEX# DESCRIPTIONPIN NO.DESCRIPTIONPIN NO. connector cable. ROCKY-P218A board equipped with a 34-pin daisy-chain driver indicators to the ROCKY- P218A board. This chapter describes how to connect peripherals, switches and 201h 3.2 You can attach four IDE( Integrated Device Electronics) hard disk drives to the ROCKY-P218A IDE controller. CN2 (IDE 2) : Secondary IDE Connector · PIN NO.DESCRIPTIONPIN NO.DESCRIPTION 1RESET#2GROUND 3DATA 74DATA 8 5DATA 66DATA 9 7DATA 58DATA 10 9DATA 4DATA 11 DATA 3DATA 12 DATA 2DATA 13 DATA 1DATA 14 DATA 0DATA 15 GROUNDN/C N/CGROUND IOW#GROUND GROUND N/C N/CGROUND - DEFAULT INTERRUPT N/C HDD ACTIVE#GROUND 13 4039 HDC CS1#38HDC CS0#37 SA236SA035 34SA133 IOCS16#-DEFAULT3231 3029 BALE - DEFAULT2827 26IOR#25 2423 2221 2019 1817 1615 1413 1211 10 CN1/CN2 : IDE Interface Connector CN1 (IDE 1) : Primary IDE Connector PCI E-IDE Disk Drive Connector 3.3 Parallel Port · CN4 : Parallel Port Connector PIN NO.DESCRIPTIONPIN NO.DESCRIPTION 1STROBE#2DATA 0 3DATA 14DATA 2 5DATA 36DATA 4 7DATA 58DATA 6 9DATA 7ACKNOWLEDGE PRINTER SELECTAUTO FORM FEED # ERROR# PRINTER SELECT LN#GROUND GROUNDGROUND GROUNDGROUND GROUNDGROUND GROUND 3.4Serial Ports · PIN NO.DESCRIPTION 1DATA CARRIER DETECT (DCD) 2 3 4DATA TERMINAL READY (DTR) 5 6 7REQUEST TO SEND (RTS) 8 9 · 14 CN5 : Serial Port 10-pin Header( ACE1) RING INDICATOR (RI) CLEAR TO SEND (CTS) DATA SET READY (DSR) GROUND (GND) TRANSMIT DATA (TXD) RECEIVE DATA (RXD) CN8 : Serial Port DB-9 Connector( ACE0 ) UARTs with Read/Receive 16 byte FIFO serial ports. The ROCKY-P218A offers two high speed NS16C550 compatible 25 2423 2221 2019 1817 INITIALIZE1615 1413 PAPER EMPTY12BUSY11 10 CN4. an on-board parallel port, accessed through a 26-pin flat-cable connector This port is usually connected to a printer, The ROCKY-P218A includes 3.5Keyboard/Mouse Connector · CN7 : 5-pin PS2 Mouse Connector PIN NO.DESCRIPTION 1MOUSE DATA 2N/C 3GROUND 4 5MOUSE CLOCK · PIN NO.DESCRIPTION 1 2KEYBOARD DATA 3N/C 4GROUND 5 · CN10 : 6-pin Mini-DIN Keyboard/Mouse Connector PIN NO.DESCRIPTION 1KEYBOARD DATA 2MOUSE DATA 3GROUND 4 5 6MOUSE CLOCK which is connected to the CN10 and provide a PS2 mouse and 5-pin DIN keyboard connector. 15 Please note the board includes a keyboard/mouse adapt cable KEYBOARD CLOCK +5V +5V KEYBOARD CLOCK CN9 : 5-pin Header Keyboard Connector +5V The ROCKY-P218A provides two keyboard/mouse connectors. NC 10 GND 9 RI 8 DTR 7 CTX 6 TXD 5 RTS 4 RXD 3 DSR 2 DCD 1 Description Pin No. DescriptionPin No. 3.6 External Switches and Indicators monitoring and controlling your CPU board. All the functions are J1 : Pin 1-3 External Speaker Pin 5-6 Reset Switch Pin 7-8 IDE LED Pin 11-13 Power LED Pin 14-15 Pin 9,10,16-20 Reserved 1 11. +5V 2. 12. N/C 3. +5V 13. 4. 14. 5. 15. 6. 16. 7. +5V 17 8.Active# 18. 9. 19. 10. 20. 3.7 USB Port Connector Pin 1-4 for USB 0 Pin 5-8 for USB 1 1. 5. 2. DATA- 6. DATA- 3. DATA+ 7. DATA+ 4. 8. 16 GROUND GROUND VccVcc J2 : 2 ports USB Connector I/O bus expansion. The ROCKY- P218A built-in two USB ports for the future new HDD Ground Ground External Reset KeyLock Signal Ground NC Speaker Signal J1 Pin Assignment : KeyLock in the J1 connector. There are several external switches and indicators for 3.8 The ROCKY-P218A built-in a Infrared(SIR) or Amplitude Shift Keyed IR(ASKIR) interface. IrDA port have to set SIR or ASKIR model in the BIOS’’ · PIN NO.DESCRIPTION 1VCC 2 3 4 5 6 3.9 Fan Connector to the cooling fan. In the connector there have a “” pin . The rotation pin is to get the fan’ only specified fan offers the rotation signal. · PIN NO.DESCRIPTION 1 2 3 3.10 Sound Function Connectors ’s Creative Sound Function provides several connector for audio in and audio out. The details are : J3 : MIDI/GAME Port · 17 The ROCKY-P218A Ground 12V Rotation Signal J10/J11 : CPU Fan Connector the system BIOS could recognize the fan speed. Please note s rotation signal to system. So rotation chassis fan connector. These connectors can supply 12V/500mA The ROCKY-P218A provides CPU cooling fan connector, CIRRX IR-TX Ground IR-RX FIR-RX IrDA connector CN6 : COM 2 will be disabled. s COM 2. Then the normal RS-232s Peripheral Setup When use the IrDA port which support Serial IrDA Infrared Interface Port JRC0 JRC2 GROUND MIDI OUT GROUND JRC3 JRC1 NC · J5 : MICROPHONE IN J6 : LINE IN · J7 : CD AUDIO IN(MITSUMI) · PIN NO.DESCRIPTION 1 JCD-L 2GROUND 3GROUND 4JCD-R · PIN NO.DESCRIPTION 1GROUND 2JCD-L 3GROUND 4JCD-R · J9 : LINE OUT(Speak Out) 18 J8 : CD AUDIO IN(SONY) 16 5V 8. MIDI IN 15 JOYF1 7. JOYF3 14 6 13 5 12 4 11 3 JOYF2 10 JOYF0 2 5V 9 5V 1 DescriptionPin No. DescriptionPin No. 4 provide maximum flexibility in configuring the system by offering 4.1 Getting Start test ,initialization and system configuration verification. After the " Hit DEL if you want to run SETUP" The following screen will be displayed at this time. Auto Configuration with Fail Safe Settings will load the minimized settings for Troubleshooting. The Auto Configuration with Optimal Settings will will modify all applicable settings. 19 load optimized defaults for regular use. Choosing this setting, When choose performance should be very poor when use this setting. When choose To access AMI PCI/ISA BIOS Setup program, press key. POST routines are completed, the following message appears : Self-Test routines. These routines will be executed for system When power on the system, the BIOS will enter the Power-On- usage of these features. requirements. This chapter is written to assist you in the proper various options which may be selected for end-user configuration. The AMI BIOS setup program is designed to The ROCKY-P218A uses the AMI PCI/ISA BIOS for system AMI BIOS Setup 4.2 Standard CMOS Setup configuration. The main function is for Date/Time setting and Floppy/Hard Disk Drive setting. Please refer the following screen For IDE hard disk drive Use the IDE HDD AUTO DETECTION in the main menu to automatically enter the drive specifications. Manually enter the specifications by yourself from ”“ option. 20 Userthe 3. 2. bootup.Use the Auto setting for detection during 1. setup procedure, possible setup,please check the following for this setup. The Standard CMOS Setup is used for basic hardware system ‘ best performance of the ROCKY-P218A board. As for normal ‘t have to change any default setting. The default setting is pre-set for most reliable operation. “”“Primary Display” to ““ for the application which don’ 21 display. t need keyboard and Absent and System KeyboardCustomer can set operation customers don s tuningThis Advanced CMOS Setup is designed for customer 4.3 Advanced CMOS Setup 4.4 Advanced Chipset Setup ChipSet(Intel ‘s Fixed Memory Hole : Enable or Disable Memory from 15MB and up will be unavailable to the system 22 because expansion cards can only access memory up to 16MB. ISA expansion cards that specifically require this setting. This setting reserve 15MB to 16MB memory address space for un-stable.the system could be running registers. Please carefully change any default setting ,otherwise ChipSet440LX). These options are used to change the This setup functions are almost working for 4.5 Peripheral Setup This setup is almost working for Multi-I/O Chip(W83977F ). ‘ Please carefully change any default setting to meet your Serial Port 2. If you are using the IrDA port,you have to set this 23 port accordingly. application need perfectly. The only special concern is Onboard s registers.ChipSetThese options are used to change the 4.6 Power Management Setup ‘“” the video display and hard disk to save energy for example. The Power Management/APM : Disable, Max Saving, Min Saving, or User Defined Max Saving puts the system into power saving mode after a brief inactivity period. Min Saving is almost the same as Max Saving except that the inactivity period is longer. User Defined requirement. ) have to be DEVICE=C:\DOS\POWER.EXE in your CONFIG.SYS 24 Under DOS environment, you need to add enters suspend mode activated by the Power Management. installed to keep the system time updated when the computer Note : Advanced Power Management(APM allows you to set power saving options according to your power management setup screen is as following, function. The features could shut downgreens P218A board Power Management Setup help user handles the ROCKY- Under Windows 3.x and Windows 95,you have to install “” Will appear in the “” ‘“” INTA#,thus all installed PCI slots must be set to this value.. Plug and Play Aware O/S : Yes or No When 25 to prevent reassigning of interrupt settings, select setting to No. OS when the setting is Yes. When a non-PNP OS is installed or PNP OS is installed, interrupts may be reassigned by the function. All PCI bus slots on the system use PCIs The setup help user handles the ROCKY-P218A board 4.7 PCI / PLUG AND PLAY SETUP Control Panel Powerlabeled Windows with APM feature. A battery and power cord icon 4.8 Hardware Monitor Setup ‘ implemented by on board LM78 chip. The voltage monitoring will cover +5V,+12V,-12V,and –5V. And there have two fan 5 26 connectors for system and CPU fan. board system voltage and fan speed. The function is s onThe setup help user monitor the ROCKY-P218A board 2 E Key™ Function 2 ™ function 2 ™ you could free to store the ID Code, Pass Word, or Critical Data in the 1Kbit EEPROM. Because the EEPROM is nonvolatile memory, you ’t have to worry the losing of the very important data. 2 Basically the E™ 2 ™ you should have the utility in the package. The software utility will include four files as follows, E2KEY.OBJ EKEYDEMO.C EKEYDEMO.EXE. The E2KEY.OBJ provides two library function for user to 2 integrate their application with E™ function. These library are written and compiled in C format. Please check the following statement, then you will know how to implement it easily. unsigned 2 /* This function will return the E™’ void write_e2key(unsigned int address,unsigned data) 2 /* This function will write the given data to E™ The address range is from 0 to 63. The data value is from 0 to 0xffff. */ 27 at address.KEY address range is from 0 to 63. Return data is one word,16 bits */ s data at address. TheKEY int address)int read_e2key(unsigned (read_e2key and write_e2key) KEY README.DOC KEYWhen you start to use the E write) each word at any time. configured to 64 words(from 0 to 63). You could access(read or is based on a 1Kbit EEPROM which isKEY don KEYfor system integrator. Based on the E KEYThe ROCKY-P218A provides an outstanding E EKEYDEMO.C code at first. 2 ™ ’ Appendix A. Watch-Dog Timer The Watch-Dog Timer is provided to ensure that standalone 28 external EMI or a software bug. When the CPU stops working caused the CPU to crash. This condition may have occurred by systems can always recover from catastrophic conditions that port, otherwise will be not working. s parallelparallel port. So you should enable the ROCKY-618V function is based on the working ofKEYPlease note the E To easy start to use the function, please refer the include maskable interrupt (NMI) to bring the The Watch-Dog Timer is controlled by two I/O ports. Enable the refresh the Watch-Dog (hex)Timer. Disable the Watch-Dog Timer. (hex) To enable the Watch-Dog Timer, a read from I/O port 443H must be performed. This will enable and activate the countdown timer which will eventually time out and either reset the CPU or this reset condition does not occur, the Watch-Dog Timer must A tolerance of at least 30% must be maintained to avoid disk I/O that can be very time consuming. Therefore if the time 29 Dog Timer, otherwise the system will reset. Note: when exiting a program it is necessary to disable the Watch- be read within 7 seconds. out period has been set to 10 seconds, the I/O port 443H must unknown routines within the operating system (DOS), such as jumper group JP11. This must be done within the time out period that is selected by be periodically refreshed by reading the same I/O port 433H. cause an NMI depending on the setting of JP9. To ensure that Read043 Read443 system back to a known state. reset (cold boot) or a non- correctly, hardware on the board will either perform a hardware