AlphaPC 164 Motherboard User`s Manual
Contents
1. 25 7 4 3 Setup Menu 26 7 4 4 Manage Boot Selection Menu 29 7 4 5 Machine Specific Setup Menu 31 7 5 Using the Disk Partition Utility 32 iv 7 6 Using the Firmware Update Utility 33 7 7 Installing the Windows NT Operating System 33 7 7 1 Requirements 34 7 7 2 Before Installing Windows NT 35 7 7 3 Starting Windows NT Setup 36 8 Troubleshooting 37 8 1 Beep Codes 38 8 2 Post Codes2. 20 24 ISA Interrupts 21 25 ISA I O Address Map 22 26 Beep Codes 38 27 Post Codes 38 About This Manual 1 1 About This Manual This manual describes the AlphaPC 164 motherboard a module for computing systems based on the Digital Semiconductor 21164 Alpha microprocessor and the companion Digital Semiconductor 21172 core logic chipset It describes the features of the motherboard and how to set the configuration jumpers The manual is intended for users of the AlphaPC 164 motherboard to assist them in installing the motherboard and populating it with memory modules and peripheral cards 1 1 Document Conventions The following conventions are used in this document Caution Cautions indicate potential damage to equipment software or data Note Notes provide additional information about a topic Numbering All numbers are decimal or hexadecimal unless otherwise indicated In case of ambiguity a subscript indicates the radix of nondecimal numbers For example 19 is a decimal number bu
3. 19 5 1 Configuring DRAM Memory 19 5 2 Upgrading DRAM Memory 20 6 Interrupts and ISA Bus Addresses 21 6 1 Interrupts 21 6 2 ISA I O Address Map 22 6 3 Flash ROM Address Map 22 7 Windows NT ARC Firmware 23 7 1 Firmware Conventions 23 7 2 Firmware Menu Access 23 7 3 Firmware Menu Structure 23 7 4 Firmware Menu Descriptions 25 7 4 1 Boot Menu 25 7 4 2 Supplementary Menu
4. 15 10 Parallel Bus Connector Pinouts J16 15 11 COM1 COM2 Serial Line Connector Pinouts J4 16 12 Keyboard Mouse Connector Pinouts J15 16 13 SROM Test Data Input Connector Pinouts J32 16 14 Input Power Connector Pinouts J3 17 15 Enclosure Fan 12 V dc Power Connector Pinouts J2 J22 17 16 Speaker Connector Pinouts J23 17 17 Microprocessor Fan Power Connector Pinouts J21 17 18 Power LED Connector Pinouts J27 18 19 IDE Drive LED Connector Pinouts J28 18 20 Reset Button Connector Pinouts J24 18 21 Halt Button Connector Pinouts J25 18 22 AlphaPC 164 DRAM Memory Configurations 19 23 Memory Upgrade Options
5. 38 8 3 Fail Safe Booter 40 9 Battery Recycle Disposal Information 41 10 Ordering Associated Documentation 42 v Figures 1 AlphaPC 164 Jumper Connector Component Location 4 2 AlphaPC 164 Configuration Jumpers 9 vi Tables 1 AlphaPC 164 Features 3 2 AlphaPC 164 Jumper Connector Component List 5 3 Power Supply DC Current Requirements 6 4 AlphaPC 164 Motherboard Environmental Requirements 7 5 Peripheral Component Interface PCI Bus Connector Pinouts 11 6 ISA Expansion Bus Connector Pinouts J33 J35 13 7 DRAM SIMM Connector Pinouts J5 Through J12 14 8 IDE Drive Bus Connector Pinouts J13 J14 14 9 Diskette Drive Bus Connector Pinouts J18
6. Height 6 0 cm 2 4 in The motherboard can be used in certain desktop and deskside systems that have adequate clearance for the 21164 microprocessor heat sink and fan All ISA and PCI expansion slots are usable in standard desktop or deskside enclosures Table 4 AlphaPC 164 Motherboard Environmental Requirements Parameter Specification Operating temperature 10 C to 40 C 50 F to 104 F Storage temperature 55 C to 125 C 67 F to 257 F Relative humidity 10 to 90 with maximum wet bulb temperature 28 C 82 F and minimum dew point 2 C 36 F Rate of dry bulb temperature change 11 C hour 2 C hour 20 F hour 4 F hour 8 AlphaPC 164 Jumper Configuration 3 AlphaPC 164 Jumper Configuration The AlphaPC 164 motherboard has three groups of jumpers at location J1 J30 and J31 These jumpers set the hardware configuration and boot options Figure 1 shows the jumper location on the AlphaPC 164 motherboard Figure 2 shows the jumper functions for each group Section 3 1 through Section 3 7 describe the jumper configurations 3 1 Memory Bus Width Jumper J1 The memory bus width can be either 128 bits J5 through J8 populated with SIMMs and J9 through J12 empty or 256 bits J5 through J12 populated with SIMMs When using a memory bus width of 128 bits jumper J1 must be in When using a memory bus width of 256 bits jumper J1 must be out 3 2 System Clock Divisor Jumpers IRQ3 Through IRQ0 Th
7. 8 2 Post Codes The post codes indicate the progress of the SROM and Windows NT firmware Table 27 lists and describes the post codes Table 26 Beep Codes Beep Code Description 1 2 3 This sequence represents the fail safe booter startup 4 No valid header found in ROM loading entire ROM 5 6 7 Same meaning as Post code 3F fatal error subcodes Table 27 Post Codes Post Code hex Description 00 Firmware initialization is complete 01 CPU speed detected 02 CPU speed converted 03 Configuration jumpers read 04 Bcache configuration value computed 05 Bcache control value computed 06 Bcache turned off 07 Memory timing registers written 08 Memory control register written 09 Memory bank 0 register written 0B DRAMs awakened 0C Memory sized and memory bank 0 written 0F Bcache turned on 13 All of memory rewritten good data parity written 14 Memory errors cleared start reading system ROM 15 Loading ROM without SROM decompression 16 Loading ROM using SROM decompression 17 System ROM loaded to memory Troubleshooting 39 18 Icache flush code written to memory 19 CPU errors cleared jump to system code 20 ISA bus reset 3A Jumping to SROM Mini Debugger 3F Fatal error Second code identifies source of error 05 No memory found 06 Checksum error detected when image was read back from memory 07 Could not determine the SIMM type 41 Firmware environment has been loaded 42 Firmware services have be
8. All SIMMs must be of equal size 5 1 Configuring DRAM Memory Table 22 lists the DRAM memory configurations available Refer to Figure 1 for SIMM connector location Table 22 AlphaPC 164 DRAM Memory Configurations Total Memory 128 Bit Memory Mode J1 In J5 Through J8 Populated with SIMM Sizes 16MB 1Mb X 36 32MB 2Mb X 36 64MB 4Mb X 36 128MB 8Mb X 36 256MB 16Mb X 36 Total Memory 256 Bit Memory Mode J1 Out J5 Through J12 Populated with SIMM Sizes 32MB 1Mb X 36 64MB 2Mb X 36 128MB 4Mb X 36 256MB 8Mb X 36 512MB 16Mb X 36 20 Configuring and Upgrading DRAM Memory 5 2 Upgrading DRAM Memory There are three options for upgrading DRAM memory Table 23 To widen the memory bus to its 256 bit maximum upgrade option 2 add four SIMMs and make a jumper change remove J1 The SIMMs that you add must be of the same size nMb X 36 bit and have an access time equal to or less than the four SIMMs already in the system Refer to Figure 1 for SIMM connector and jumper location 1 Observe antistatic precautions Handle SIMMs only at the edges to prevent damage 2 Remove power from the system 3 Hold the SIMM at an angle with the notch facing the key in the socket 4 Firmly push the module into the connector and stand the module upright Ensure that the SIMM snaps into the metal locking clips on both ends 5 For 128 bit memory bus width jumper J1 must be in For 256 bit memory bus width jumper J1 mu
9. 2 Features of the AlphaPC 164 Motherboard 3 2 1 Power Requirements 6 2 2 Environmental Requirements 6 2 3 Physical Parameters 7 3 AlphaPC 164 Jumper Configuration 8 3 1 Memory Bus Width Jumper J1 8 3 2 System Clock Divisor Jumpers IRQ3 Through IRQ0 8 3 3 Bcache Size Jumpers CF1 and CF2 8 3 4 Bcache Speed Jumpers CF4 and CF5 8 3 5 Mini Debugger Jumper CF6 10 3 6 Boot Option Jumper CF7 10 3 7 Flash ROM Update Jumper J31 10 4 AlphaPC 164 Connector Pinouts 11 5 Configuring and Upgrading DRAM Memory
10. B15 GND B16 CLK B17 GND B18 REQ B19 VDD B20 AD 31 B21 AD 29 B22 GND B23 AD 27 B24 AD 25 B25 3V B26 C BE 3 B27 AD 23 B28 GND B29 AD 21 B30 AD 19 B31 3V B32 AD 17 B33 C BE 2 B34 GND B35 IRDY B36 3V B37 DEVSEL B38 GND B39 LOCK B40 PERR B41 3V B42 SERR B43 3V B44 C BE 1 B45 AD 14 B46 GND B47 AD 12 B48 AD 10 B49 GND B50 Not used B51 Not used B52 AD 08 B53 AD 07 B54 3V B55 AD 05 B56 AD 03 B57 GND B58 AD 01 B59 VDD B60 ACK64 B61 VDD B62 VDD 12 AlphaPC 164 Connector Pinouts 64 Bit PCI Connectors Only J26 J29 A63 GND A64 C BE 7 A65 C BE 5 A66 VDD A67 PAR64 A68 D 62 A69 GND A70 D 60 A71 D 58 A72 GND A73 D 56 A74 D 54 A75 VDD A76 D 52 A77 D 50 A78 GND A79 D 48 A80 D 46 A81 GND A82 D 44 A83 D 42 A84 VDD A85 D 40 A86 D 38 A87 GND A88 D 36 A89 D 34 A90 GND A91 D 32 A92 A93 GND A94 B63 B64 GND B65 C BE 6 B66 C BE 4 B67 GND B68 D 63 B69 D 61 B70 VDD B71 D 59 B72 D 57 B73 GND B74 D 55 B75 D 53 B76 GND B77 D 51 B78 D 49 B79 VDD B80 D 47 B81 D 45 B82 GND B83 D 43 B84 D 41 B85 GND B86 D 39 B87 D 37 B88 VDD B89 D 35 B90 D 33 B91 GND B92 B93 B94 GND Table 5 Continued Peripheral Component Interface PCI Bus Connector Pinouts Pin Signal Pin Signal Pin Signa
11. Firmware 35 7 7 2 Before Installing Windows NT Before you install Windows NT ensure that you have completed the following tasks Defined the environment variables for the default system partition For more information about describing your system configuration see the description for Set default environment variables in Section 7 4 Described your system configuration to the firmware For more information about describing your system configuration see the description for Set default configuration in Section 7 4 Provided the required system partition on your hard disk The following chart specifies the free space and file system requirements for installing the Windows NT operating system The system partition is the disk partition that contains the hidden files OSLOADER EXE and HAL DLL in the subdirectory OS WINNT351 If the system partition is large enough it can also contain the Windows NT operating system or you may choose to use a separate partition The system partition and the Windows NT operating system may also be on different hard disks 1System partition must be FAT Item Free Space Required File System Requirement System partition 5MB FAT1 Windows NT 3 51 operating system 94MB FAT or NTFS 36 Windows NT ARC Firmware 7 7 3 Starting Windows NT Setup Windows NT Setup located on the Microsoft Windows NT compact disc installs the Windows NT operating system Windows NT Setup pr
12. menu Add a boot selection Allows you to manually add a new boot selection usually you do not need to do this because installing Windows NT will automatically add a boot selection for the newly installed operating system 30 Windows NT ARC Firmware Boot menu Supplementary menu Setup the system Manage boot selection menu Change a boot selection Allows you to modify a boot selection Boot menu Supplementary menu Setup the system Manage boot selection menu Verify boot selections Checks your boot selections and reports any problems found Boot menu Supplementary menu Setup the system Manage boot selection menu Delete a boot selection Allows you to delete a boot selection from a list of all boot selection names Boot menu Supplementary menu Setup the system Manage boot selection menu Dump boot selections Displays all your boot selections Boot menu Supplementary menu Setup the system Manage boot selection menu Rearrange boot selections Allows you to rearrange your boot selections changing which is the default boot selection Windows NT ARC Firmware 31 Boot menu Supplementary menu Setup the system Manage boot selection menu Setup the system Returns you to the Setup menu 7 4 5 Machine Specific Setup Menu This section descr
13. your default boot selection If you choose to autoboot you will also be prompted for the number of seconds to wait before autoboot should occur Boot menu Supplementary menu Setup the system Machine specific setup Takes you to the Machine specific setup menu if one exists Note that this option might not be present Boot menu Supplementary menu Setup the system Edit environment variables Allows you to edit the firmware environment Windows NT ARC Firmware 29 Boot menu Supplementary menu Setup the system Reset system to factory defaults Resets all options to the factory defaults Boot menu Supplementary menu Setup the system Help Provides rudimentary help for the Setup menu Boot menu Supplementary menu Setup the system Supplementary menu and do not save changes Returns you to the Supplementary menu discarding any changes made from the Setup menu Boot menu Supplementary menu Setup the system Supplementary menu and save changes Returns you to the Supplementary menu saving any changes made from the Setup menu Note that if you have not made any changes this option might not appear 7 4 4 Manage Boot Selection Menu This section describes the Manage boot selection menu options Boot menu Supplementary menu Setup the system Manage boot selection
14. 21 DQ10 22 DQ11 23 DQ12 24 DQ13 25 DQ14 26 DQ15 27 DQ16 28 A7 29 A11 30 VDD 31 A8 32 A9 33 RAS3 34 RAS2 35 DQ17 36 DQ18 37 DQ19 38 DQ20 39 GND 40 CAS0 41 CAS2 42 CAS3 43 CAS1 44 RAS0 45 RAS1 46 VDD 47 WE 48 NC 49 DQ21 50 DQ22 51 DQ23 52 DQ24 53 DQ25 54 DQ26 55 DQ27 56 DQ28 57 DQ29 58 DQ30 59 VDD 60 DQ31 61 DQ32 62 DQ33 63 DQ34 64 DQ35 65 DQ36 66 VDD 67 NC 68 NC 69 NC 70 NC 71 GND 72 GND Table 8 IDE Drive Bus Connector Pinouts J13 J14 Pin Signal Pin Signal Pin Signal Pin Signal 1 RESET 2 GND 3 IDE_D7 4 IDE_D8 5 IDE_D6 6 IDE_D9 7 IDE_D5 8 IDE_D10 9 IDE_D4 10 IDE_D11 11 IDE_D3 12 IDE_D12 13 IDE_D2 14 IDE_D13 15 IDE_D1 16 IDE_D14 17 IDE_D0 18 IDE_D15 19 GND 20 NC key pin 21 MARQ 22 GND 23 IOW 24 GND 25 IOR 26 GND 27 CHRDY 28 BALE 29 MACK 30 GND 31 IRQ 32 IOCS16 33 ADDR1 34 NC 35 ADDR0 36 ADDR2 37 CS0 38 CS1 39 ACT 40 GND AlphaPC 164 Connector Pinouts 15 Table 9 Diskette Drive Bus Connector Pinouts J18 Pin Signal Pin Signal Pin Signal Pin Signal 1 GND 2 DEN0 3 GND 4 NC 5 GND 6 DEN1 7 GND 8 INDEX 9 GND 10 MTR0 11 GND 12 DR1 13 GND 14 DR0 15 GND 16 MTR1 17 GND 18 DIR 19 GND 20 STEP 21 GND 22 WDATA 23 GND 24 WGATE 25 GND 26 TRK0 27 GND 28 WRTPRT 29 ID0 30 RDATA 31 GND 32 HDSEL 33 ID1 34 DS
15. 252 connector J13 IDE drive 2 3 connector J14 IDE drive 0 1 connector J15 Keyboard mouse connectors J16 Parallel I O connector J18 Diskette floppy drive connector J19 PCI slot 3 32 bit J20 PCI slot 2 32 bit J21 Microprocessor fan fan sense connector J22 Enclosure fan 12V power connector J23 Speaker connector J24 Reset button connector J25 Halt button connector J26 PCI slot 1 64 bit J27 Power LED connector J28 Hard drive LED connector J29 PCI slot 0 64 bit J30 Configuration jumpers J31 Flash update enable disable jumper J32 SROM test port connector J33 ISA slot 1 J35 ISA slot 0 U2 Data switch 0 DSC 21172 BA U5 to U7 Cache SRAM L3 U10 to U12 Cache SRAM L3 U14 Data switch 1 DSC 21172 BA U15 to U17 Cache SRAM L3 U18 Data switch 2 DSC 21172 BA U21 Microprocessor socketed DSC 21164 Alpha U22 Data switch 3 DSC 21172 BA U25 I O interface and address control DSC 21172 CA U29 IDE controller U34 Microprocessor clock crystal 36 66 MHz default socketed U35 Microprocessor clock PLL TriQuint TQ2061 U36 System clock PLL CDC 2586 U39 Serial ROM socketed Xilinx XC17128D U40 PCI to ISA bridge Intel 82378ZB U41 Combination controller Super I O SMC FDC37C935 U48 Flash ROM 1MB U49 PCI arbiter PAL U50 PCI interrupt request PAL U51 Power controller U52 Power sense 6 Features of the AlphaPC 164 Motherboard 2 1 Power Requirements The AlphaP
16. AlphaPC 164 Motherboard User s Manual Revision Update Information This document supersedes the AlphaPC 164 Motherboard User s Manual Revision A January 1997 Printed in U S A AlphaPC DIGITAL and Digital Semiconductor are trademarks of Digital Equipment Corporation CDC is a registered trademark of Control Data Corporation CompuServe is a registered trademark of CompuServe Inc FaxBACK and Intel are registered trademarks of Intel Corporation GRAFOIL is a registered trademark of Union Carbide Corporation Intel is a registered trademark of Intel Corporation Microsoft is a registered trademark and NT and Windows NT are trademarks of Microsoft Corporation QLogic is a registered trademark and ISP is a trademark of QLogic Corporation SMC is a registered trademark of Standard Microsystems Corporation Standard Microsystems is a registered trademark of Standard Microsystems Corporation TriQuint is a registered trademark of TriQuint Semiconductor Inc Xilinx is a trademark of Xilinx Incorporated Digital Semiconductor is a Digital Equipment Corporation business All other trademarks and registered trademarks are the property of their respective holders EC QPG0B TE iii Contents 1 About This Manual 1 1 1 Document Conventions 1
17. C 164 motherboard has a total power dissipation of 116 W excluding any plug in PCI and ISA devices Table 3 lists the power requirement for each dc supply voltage The power supply must supply a DCOK signal to the system reset logic Caution Fan Sensor Required The 21164 microprocessor cooling fan must have a built in sensor that will drive a signal if the airflow stops The sensor is connected to motherboard connector J21 When the signal is generated it resets the system 2 2 Environmental Requirements The 21164 microprocessor is cooled by a small fan blowing directly into the chip s heat sink The AlphaPC 164 motherboard is designed to run efficiently by using only this fan Additional fans may be necessary depending upon cabinetry and the requirements of plug in cards The AlphaPC 164 motherboard is specified to run within the environment listed in Table 4 1Values indicated are for an AlphaPC 164 motherboard 64MB DRAM excluding adapter cards and disk drives Table 3 Power Supply DC Current Requirements Voltage Tolerance Current1 3 4 V dc 3 5 0 A 5 V dc 5 12 0 A 5 V dc 5 0 A 12 V dc 5 1 0 A 12 V dc 5 100 0 mA Features of the AlphaPC 164 Motherboard 7 2 3 Physical Parameters The AlphaPC 164 motherboard is an ATX size printed wiring board PWB with the following dimensions Length 30 48 cm 12 0 in 0 0005 in Width 24 38 cm 9 6 in 0 0005 in
18. F FFFF Flash space of 1MB is obtained by double mapping this 512KB space FLASH_ADR19 register at I O location 800h provides this function Writing a 0 to this location enables the lower 512KB of flash Writing a 1 to this location enables the upper 512KB of flash Table 25 ISA I O Address Map Range hex Usage 000 00F 8237 DMA 1 020 021 8259 PIC 1 040 043 8253 timer 060 061 Ubus IRQ12 and NMI control 070 CMOS RAM address and NMI mask register 080 08F DMA page registers 0A0 0A1 8259 PIC 2 0C0 0DF 8237 DMA 2 2F8 2FF Serial port COM2 370 377 Secondary diskette 3BC 3BF Parallel port LPT1 3F0 3F7 Primary diskette 3F8 3FF Serial port COM1 800 FLASH_ADR19 register 801 AlphaPC 164 configuration register 804 806 PCI interrupt registers Windows NT ARC Firmware 23 7 Windows NT ARC Firmware The Windows NT ARC firmware initializes the system and enables you to install and boot the Windows NT operating system This firmware resides in the flash ROM on the AlphaPC 164 motherboard 7 1 Firmware Conventions To select and choose different options in the Windows NT firmware menus use the following keys 7 2 Firmware Menu Access When you power up your system the firmware displays a blue screen on the monitor initializes the firmware drivers and displays the Boot menu the first menu of the Windows NT firmware menus The currently selected option in the menu is highlighted Not
19. KCHG Table 10 Parallel Bus Connector Pinouts J16 Pin Signal Pin Signal Pin Signal Pin Signal 1 STB 2 PD0 3 PD1 4 PD2 5 PD3 6 PD4 7 PD5 8 PD6 9 PD7 10 ACK 11 BUSY 12 PE 13 SLCT 14 AFD 15 ERR 16 INIT 17 SLIN 18 GND 19 GND 20 GND 21 GND 22 GND 23 GND 24 GND 25 GND 16 AlphaPC 164 Connector Pinouts Table 11 COM1 COM2 Serial Line Connector Pinouts J4 COM1 Pin Top COM1 Signal COM2 Pin Bottom COM2 Signal 1 DCD1 1 DCD2 2 RxD1 2 RxD2 3 TxD1 3 TxD2 4 DTR1 4 DTR2 5 SG1 5 SG2 6 DSR1 6 DSR2 7 RTS1 7 RTS2 8 CTS1 8 CTS2 9 RI1 9 RI2 Table 12 Keyboard Mouse Connector Pinouts J15 Keyboard Pin Top Keyboard Signal Mouse Pin Bottom Mouse Signal 1 KBDATA 1 MSDATA 2 NC 2 NC 3 GND 3 GND 4 VDD 4 VDD 5 KBCLK 5 MSCLK 6 NC 6 NC Table 13 SROM Test Data Input Connector Pinouts J32 Pin Signal Name 1 NC 2 SROM_CLK_L Clock out 3 GND 4 NC 5 TEST_SROM_D_L SROM serial data in 6 NC AlphaPC 164 Connector Pinouts 17 Table 14 Input Power Connector Pinouts J3 Pin Voltage Pin Voltage Pin Voltage Pin Voltage 1 3 3 V dc 2 3 3 V dc 3 Ground 4 5 V dc 5 Ground 6 5 V dc 7 Ground 8 P_DCOK 9 NC 10 12 V dc 11 3 3 V dc 12 12 V dc 13 Ground 14 NC 15 Ground 16 Ground 17 Ground 18 5 V dc 19 5 V d
20. See Section 7 6 for directions on how to update your firmware once the firmware update program has started 26 Windows NT ARC Firmware Boot menu Supplementary menu Install Windows NT from CD ROM Starts an installation of Windows NT from a CD ROM See Section 7 7 for more information about installing Windows NT Boot menu Supplementary menu Setup the system Takes you to the Setup menu Boot menu Supplementary menu Display hardware configuration Displays your hardware configuration in three screens The first screen displays information about your processor and memory as well as the firmware version The second screen displays firmware supported devices that were detected with their ARC names The third screen displays information about PCI devices found in your system Boot menu Supplementary menu Boot menu Returns you to the Boot menu 7 4 3 Setup Menu This section describes the Setup menu options Boot menu Supplementary menu Setup the system Set the time Allows you to set the system date and time Windows NT ARC Firmware 27 Boot menu Supplementary menu Setup the system Set default environment variables Allows you to set the default system partition The system partition is the disk partition where the Windows NT osloader PALcode and HAL reside Note that choosing this option removes all curr
21. and jumpers AlphaPC 164 Features The AlphaPC 164 motherboard uses a Digital Semiconductor 21164 Alpha microprocessor and companion Digital Semiconductor 21172 core logic chipset Table 1 lists the features of the AlphaPC 164 motherboard Figure 1 shows the board outlines and identifies the location of jumpers connectors and major components Table 2 lists and defines these items Refer to Section 4 for connector pinouts Refer to Section 3 for jumper configurations Table 1 AlphaPC 164 Features Feature Description Microprocessor Digital Semiconductor 21164 Alpha microprocessor 64 bit RISC Chipset Digital Semiconductor 21172 core logic chipset consisting of one control chip and four data chips that provides an interface to system memory and the PCI bus DRAM memory 16 MB to 512 MB memory array One bank of either 4 128 bit or 8 256 bit commodity 36 bit 70 ns SIMMs Caching L1 Icache 8 KB direct mapped instruction cache on the CPU chip L1 Dcache 8 KB direct mapped data cache on the CPU chip L2 Scache 96 KB three way set associative write back unified instruction and data cache on the CPU chip L3 backup cache Onboard 1 MB direct mapped synchronous SRAM backup cache with 128 bit data path I O and miscellaneous support 32 bit and 64 bit 33 MHz PCI Four dedicated PCI expansion slots two 64 bit PCI IDE control CMD646 Intel 82378ZB PCI to ISA bridge chip Two dedicated ISA expansion slots SMC FDC37C935 com
22. bination chip provides control for diskettes two UARTs with modem control parallel port keyboard mouse and time of year clock 1 MB flash ROM Firmware Windows NT ARC firmware 4 Features of the AlphaPC 164 Motherboard Figure 1 AlphaPC 164 Jumper Connector Component Location MK 2306 35 Cache SRAM L3 U15 U34 U35 U41 U25 U22 U48 U29 U21 U49 U50 U40 U51 U52 U39 U36 J30 J31 J35 J33 J28 B1 J3 1 2 1 3 3 1 1 3 1 4 1 5 1 2 25 26 20 11 10 1 View from edge U2 U18 U14 U10 U5 U16 U17 U11 U12 U6 U7 J25 J27 J21 J22 J23 J24 J4 J32 J29 J26 J20 J19 J18 J13 J14 J16 J15 J1 J5 J6 J7 J8 J9 J10 J11 J12 J2 1 2 1 1 1 2 2 33 34 39 40 39 40 3 Top Mouse Bottom Keyboard Top COM1 Bottom COM2 Features of the AlphaPC 164 Motherboard 5 Table 2 AlphaPC 164 Jumper Connector Component List Item Description Item Description B1 RTC battery CR2032 J1 Memory bus width jumper J2 Fan power enclosure 12V J3 Power 3V 5V 5V 12V 12V J4 COM1 COM2 DB9 connectors J5 DRAM SIMM 0 35 0 connector J6 DRAM SIMM 1 71 36 connector J7 DRAM SIMM 2 107 72 connector J8 DRAM SIMM 3 143 108 connector J9 DRAM SIMM 4 179 144 connector J10 DRAM SIMM 5 215 180 connector J11 DRAM SIMM 6 251 216 connector J12 DRAM SIMM 7 287
23. c 20 5 V dc Table 15 Enclosure Fan 12 V dc Power Connector Pinouts J2 J22 Pin Voltage 1 Ground 2 12 V dc 3 Ground Table 16 Speaker Connector Pinouts J23 Pin Signal Name 1 SPKR Speaker output 2 GND 3 GND 4 GND Table 17 Microprocessor Fan Power Connector Pinouts J21 Pin Signal Name 1 12V 2 FAN_CONN_L Fan connected 3 GND 18 AlphaPC 164 Connector Pinouts Note The Halt button is not used with the Windows NT operating system Table 18 Power LED Connector Pinouts J27 Pin Signal Name 1 POWER_LED_L Pull up to VDD 2 GND 3 NC 4 NC 5 NC Table 19 IDE Drive LED Connector Pinouts J28 Pin Signal Name 1 HD_ACT_L Hard drive active 2 HD_LED_L Pull up to VDD Table 20 Reset Button Connector Pinouts J24 Pin Signal Name 1 RESET_BUTTON Reset system 2 GND Table 21 Halt Button Connector Pinouts J25 Pin Signal Name 1 HALT_BUTTON Halt system 2 GND Configuring and Upgrading DRAM Memory 19 5 Configuring and Upgrading DRAM Memory For higher system speed or greater throughput DRAM memory can be upgraded either by replacing SIMMs with those of greater size or by widening the memory bus from 128 bits to 256 bits by adding more SIMMs Note When configuring or upgrading DRAM the following rules must be observed All SIMMs must be 36 bit and have a 70 ns or faster access time
24. cumentation 43 PCI System Design Guide PCI Special Interest Group 1 800 433 5177 U S 1 503 797 4207 International 1 503 234 6762 FAX PCI Local Bus Specification Rev 2 1 PCI Special Interest Group See previous entry 82420 82430 PCIset ISA and EISA Bridges includes 82378IB ZB SIO PN 290483 Intel Corporation Literature Sales P O Box 7641 Mt Prospect IL 60056 USA 1 800 628 8686 FaxBACK Service 1 800 628 2283 BBS 1 916 356 3600 Super I O Combination Controller FDC37C935 Data Sheet Standard Microsystems Corporation 80 Arkay Drive Hauppauge NY 11788 USA Phone 1 516 435 6000 FAX 1 516 231 6004 Hardware Compatibility List Contact Microsoft s Customer Service representatives at 1 800 426 9400 or access CompuServe Information Systems in Library 1 of the WINNT forum GO WINNT or Library 17 of the MSWIN32 forum GO MSWIN32 Title Vendor
25. e If autoboot is enabled you must cancel autoboot to interact with the firmware To cancel autoboot press the Esc key before the timeout period expires 7 3 Firmware Menu Structure The diagram on the following page shows the structure of the Windows NT firmware menus Note The text of some of the options may differ and some options may not always be available Key Description Arrow The arrow keys are used to select different options Enter The Enter key is used to choose the highlighted option Esc The escape key is used to close a menu or cancel an operation 24 Windows NT ARC Firmware Boot menu Supplementary menu Setup menu Manage boot selection menu Machine specific setup menu This symbol Boot Windows NT Boot an alternate operating system Run a program Supplementary menu Install new firmware Install Windows NT from CD ROM Setup the system Display hardware configuration Boot menu Takes you to a Set the time Set default environment variables Set default configuration Set system language Manage boot selection menu Setup autoboot Machine specific setup Edit environment variables Reset system to factory defaults Help Supplementary menu and do not save changes Supplementary menu and save changes Add a boot selection Note Change a boot selection Verify boot selections Delete a bo
26. e system clock divisor jumpers are located at J30 1 2 IRQ3 J30 3 4 IRQ2 J30 5 6 IRQ1 and J30 7 8 IRQ0 The jumper configuration set in IRQ3 through IRQ0 determines the frequency of the microprocessor s system clock output These four jumpers set the speed at power up as listed in Figure 2 The microprocessor frequency divided by the ratio determines the system clock frequency 3 3 Bcache Size Jumpers CF1 and CF2 The Bcache size jumpers are located at J30 11 12 CF1 and J30 13 14 CF2 These jumpers configure the Bcache as specified in Figure 2 3 4 Bcache Speed Jumpers CF4 and CF5 The Bcache speed jumpers are located at J30 17 18 CF4 and J30 19 20 CF5 These jumpers select the Bcache timing parameters used to compute a value that is loaded into the microprocessor s Bcache configuration register at power up time Because the Bcache SRAMs are soldered onto the board the default jumper configuration selecting an SRAM access time of 9 ns as shown in Figure 2 will always be used AlphaPC 164 Jumper Configuration 9 Figure 2 AlphaPC 164 Configuration Jumpers J30 System Configuration Jumpers IRQ3 1 3 5 7 9 11 13 15 17 19 21 23 25 CF0 CF4 CF5 CF6 CF7 CF1 CF2 CF3 Mini Debugger Default Out Boot_Option Default Out Reserved Default Out IRQ0 IRQ1 IRQ2 Reserved Default Out Not Used Frequency Ratio IRQ3 IRQ2 IRQ1 IRQ0 Comme
27. ection in the active cell are shown in the Keyboard Commands box Creating the System Partition Create and format a partition To make this partition the system partition select it and type S Note Although the disk partition utility displays changes immediately partition changes are not actually committed until you either exit the utility or perform an action that requires the changes to be committed that is formatting You will always be prompted for confirmation before changes are committed Key Description Up and down arrows Change selections in the active cell Left and right arrows Change the active cell Esc Exit the disk partition utility Keyboard commands Listed in the Keyboard Commands box To perform a specific action on the current selection type the key associated with the action Windows NT ARC Firmware 33 7 6 Using the Firmware Update Utility The firmware update utility updates the flash ROM with firmware from the Update and Windows NT 3 51 Firmware diskette See Section 7 4 2 for instructions on how to start the firmware update utility To update your firmware follow this procedure 1 Ensure that there is no CD ROM in your CD ROM drive and that your firmware diskette is in the appropriate drive 2 From the Firmware Update menu choose Update Windows NT Firmware 3 When prompted to continue the update choose Yes If the boot selection does not match the firmware that you flashed you will be pr
28. en initialized 50 A fatal error has occurred FATAL 51 The Boot menu illegally returned FATAL 75 System initialization is complete start firmware setup 76 Checking system information for sanity 77 About to initialize the video subsystem 78 PCI configuration is complete about to initialize the keyboard 79 About to configure PCI devices 80 About to initialize the PCI bus hard restart 81 About to initialize the PCI bus soft restart 85 About to validate the SCB 86 Early initialization of firmware API 87 About to initialize the system chipset 88 Initialize vendor API 89 The firmware kernel debugger module is starting 95 Video subsystem and keyboard are okay using graphic console 96 Video or keyboard is missing or broken using COM1 as console 97 Trying to initialize video subsystem and keyboard as graphic console 98 Serial ports have been initialized firmware initialization is starting 99 The firmware is about to initialize the serial ports BF Fail safe booter startup Table 27 Continued Post Codes Post Code hex Description 40 Troubleshooting 8 3 Fail Safe Booter The fail safe booter provides an emergency recovery mechanism when the primary firmware image contained in flash memory has been corrupted When flash memory has been corrupted such that no image is safely loaded from the flash the fail safe booter can be run to facilitate booting another image from a diskette that is capable of reprogramming t
29. ent boot selections If you are unsure of the values for your system use the following typical values Boot menu Supplementary menu Setup the system Set default configuration Allows you to describe your system s monitor resolution diskette capacity keyboard type and SCSI host ID to the firmware If you are unsure of the values for your system use the following typical values Note SCSI host ID refers to the SCSI ID of the SCSI host adapter on a given SCSI bus Media SCSI Hard Disk SCSI bus number 0 SCSI ID 0 Partition 1 Monitor resolution 1024 x 768 First floppy drive capacity 3 5 1 44MB Second floppy drive capacity None Keyboard U S 101 key keyboard SCSI host ID 7 28 Windows NT ARC Firmware Boot menu Supplementary menu Setup the system Set system language Allows you to specify the language that you want to use while interacting with the firmware American English is the only language built into the firmware If you want to use another language ensure that your firmware language support disk is in your diskette drive before choosing this option Boot menu Supplementary menu Setup the system Manage boot selection menu Takes you to the Manage boot selection menu Boot menu Supplementary menu Setup the system Setup autoboot Allows you to specify whether or not the system should autoboot
30. he flash Starting the Fail Safe Booter The fail safe booter can be started in one of two ways If the primary firmware image is unavailable when the system is powered on or reset the fail safe booter automatically runs When the fail safe booter runs the system emits a series of beeps through the speaker as beep code 1 2 3 that is one beep and a pause followed by two beeps and a pause followed by three beeps Then the diskette activity light flashes To start the firmware update util ity the user must insert the Update and Windows NT 3 51 Firmware diskette containing the file FWUPDATE EXE The fail safe booter can also be started manually as follows 1 Add jumper CF7 as described in Section 3 6 2 Insert the Update and Windows NT 3 51 Firmware diskette into the diskette drive 3 Proceed to Section 7 6 and follow the procedures Battery Recycle Disposal Information 41 9 Battery Recycle Disposal Information NOTICE Recycle or dispose of batteries promptly in accordance with your organization s environmental policies If this is a LITHIUM battery the following additional precautions may apply Replace batteries correctly to prevent possible explosion Replace batteries with the same or equivalent type Prior to disposal or recycling protect all batteries against accidental short cir cuiting by affixing nonconductive tape across battery terminals or conductive surfaces Keep smal
31. ibes the Machine specific setup menu options Boot menu Supplementary menu Setup the system Machine specific setup Switch Operating System Switch which firmware is active on reset or power up Boot menu Supplementary menu Setup the system Machine specific setup Partition disks Starts the disk partition utility See Section 7 5 for detailed information on this utility Boot menu Supplementary menu Setup the system Machine specific setup Setup the system Returns you to the Setup menu 32 Windows NT ARC Firmware 7 5 Using the Disk Partition Utility The disk partition utility is used to partition your hard drive and to format or quick format a partition with a FAT file system The disk partition utility also displays information about the drive such as the manufacturer and model ID strings and the ARC path See Section 7 4 5 for instructions on how to start the disk partition utility When you start the disk partition utility the default selection is the first partition on the first disk on your system If no partitions exist on that disk the default selection is the unpartitioned space on the first disk Special Keys The following chart lists the disk partition utility special keys and their functions Help The disk partition utility provides context sensitive on screen help The keyboard commands available for the current sel
32. l Pin Signal AlphaPC 164 Connector Pinouts 13 Table 6 ISA Expansion Bus Connector Pinouts J33 J35 Pin Signal Pin Signal Pin Signal Pin Signal 1 GND 2 IOCHCK 3 RSTDRV 4 SD7 5 VDD 6 SD6 7 IRQ9 8 SD5 9 5V 10 SD4 11 DRQ2 12 SD3 13 12V 14 SD2 15 ZEROWS 16 SD1 17 12V 18 SD0 19 GND 20 IOCHRDY 21 SMEMW 22 AEN 23 SMEMR 24 SA19 25 IOW 26 SA18 27 IOR 28 SA17 29 DACK3 30 SA16 31 DRQ3 32 SA15 33 DACK1 34 SA14 35 DRQ1 36 SA13 37 REFRESH 38 SA12 39 SYSCLK 40 SA11 41 IRQ7 42 SA10 43 IRQ6 44 SA9 45 IRQ5 46 SA8 47 IRQ4 48 SA7 49 IRQ3 50 SA6 51 DACK2 52 SA5 53 TC 54 SA4 55 BALE 56 SA3 57 VDD 58 SA2 59 OSC 60 SA1 61 GND 62 SA0 63 MEMCS16 64 SBHE 65 IOCS16 66 LA23 67 IRQ10 68 LA22 69 IRQ11 70 LA21 71 IRQ12 72 LA20 73 IRQ15 74 LA19 75 IRQ14 76 LA18 77 DACK0 78 LA17 79 DRQ0 80 MEMR 81 DACK5 82 MEMW 83 DRQ5 84 SD8 85 DACK6 86 SD9 87 DRQ6 88 SD10 89 DACK7 90 SD11 91 DRQ7 92 SD12 93 VDD 94 SD13 95 MASTER 96 SD14 97 GND 98 SD15 14 AlphaPC 164 Connector Pinouts Table 7 DRAM SIMM Connector Pinouts J5 Through J12 Pin Signal Pin Signal Pin Signal Pin Signal 1 GND 2 DQ1 3 DQ2 4 DQ3 5 DQ4 6 DQ5 7 DQ6 8 DQ7 9 DQ8 10 VDD 11 GND 12 A0 13 A1 14 A2 15 A3 16 A4 17 A5 18 A6 19 A10 20 DQ9
33. l batteries away from children 42 Ordering Associated Documentation 10 Ordering Associated Documentation The following table lists some of the available third party documentation that supports the AlphaPC 164 motherboard You can order literature directly from the vendor Title Vendor Alpha AXP Architecture Reference Manual PN EY T132E DP Call 1 800 344 4825 from the U S or Canada or call Butterworth Heinemann Digital Press at 1 800 366 2665 Alpha Architecture Handbook PN EC QD2KB TE Digital Equipment Corporation Digital Semiconductor 75 Reed Road Hudson MA 01749 USA Call the Digital Semiconductor Information Line United States and Canada 1 800 332 2717 Outside North America 1 510 490 4753 Visit the Digital Semiconductor World Wide Web Internet site http www digital com semiconductor Digital Semiconductor 21164 Alpha Microprocessor Data Sheet PN EC QP98B TE Digital Equipment Corporation See previous entry Digital Semiconductor 21164 Alpha Microprocessor Hardware Reference Manual PN EC QP99B TE Digital Equipment Corporation See previous entry Digital Semiconductor 21172 Core Logic Chipset Technical Reference Manual PN EC QUQJA TE Digital Equipment Corporation See previous entry Alpha Microprocessors SROM Mini Debugger User s Guide PN EC QHUXB TE Digital Equipment Corporation See previous entry Ordering Associated Do
34. nts All other combinations In Out Out Out In In Out In Out 366 MHz 400 MHz 433 MHz 11 12 13 Out Out Out Reserved Bcache Size Out Out All other combinations CF1 CF2 Comments 1MB Out In 2MB Reserved Default Bcache Speed Out All other combinations CF4 CF5 Comments 9 ns Out Reserved Default MK 2306 36A 1 2 3 2 to 3 In Enable Default 1 to 2 In Disable 1 2 In 128 Bit Bus Out 256 Bit Bus Note Jumper must be out when all eight DRAM SIMM sockets are populated J31 Flash ROM Update Jumper J1 Memory Bus Width Jumper Out In Out 466 MHz 14 Out Out Out 500 MHz 15 Out Out 10 AlphaPC 164 Jumper Configuration 3 5 Mini Debugger Jumper CF6 The Mini Debugger jumper is located at J30 21 22 CF6 The default position for this jumper is out Figure 2 The Alpha SROM Mini Debugger is stored in the SROM When this jumper is in it causes the SROM initialization to trap to the Mini Debugger communication through connector J32 after all initialization is complete but before starting the execution of the system flash ROM code 3 6 Boot Option Jumper CF7 The boot option jumper is located at J30 23 24 CF7 The default position for this jumper is out Figure 2 This jumper selects the image to be loaded into memory from the system flash ROM With the jumper out the Windows NT ARC firmware is loaded With the jumper in the fail safe boote
35. ompted to update the boot selection 4 If you are prompted to update the boot selection choose Yes 5 When the update has completed restart your computer 7 7 Installing the Windows NT Operating System This section supplements the Microsoft Windows NT installation guide for installing the Windows NT operating system on an AlphaPC 164 system If you already have a previous version of Windows NT installed see the Microsoft Windows NT installation guide for information about how to upgrade to a new version of the operating system 34 Windows NT ARC Firmware 7 7 1 Requirements You need the following hardware and software to install the Windows NT operating system on an AlphaPC 164 system A 100MB or larger hard drive Note For information regarding IDE ATA hard drives ATAPI CD ROM drives and support for QLogic ISP 1020 SCSI host adapters see the README TXT file on the Update and Windows NT 3 51 Firmware diskette Memory 16MB of memory DRAM 32MB is recommended is required for the Windows NT Workstation operating system 32MB of memory DRAM is required for the Windows NT Server operating system The Microsoft Windows NT compact disc The Update and Windows NT 3 51 Firmware diskette Note This diskette is required for the Windows NT 3 51 operating system Future versions of Windows NT may not require this diskette Contact your OEM or system vendor for details Windows NT ARC
36. ot selection Dump boot selections Rearrange boot selections Setup the system Means submenu Returns you to the previous menu in the hierarchy Setup the system Partition disks Arrows indicate flow between menu screens Switch Operating System Windows NT ARC Firmware 25 7 4 Firmware Menu Descriptions This section describes the Windows NT firmware menu options 7 4 1 Boot Menu This section describes the Boot menu options Boot menu Boot Windows NT Boots the default boot selection Note that the string Windows NT will appear as the name of your default boot selection Boot menu Boot an alternate operating system Provides a menu of all boot selections choose one to boot the system Boot menu Run a program Runs an ARC application This option prompts you for the path to the ARC application and runs it Boot menu Supplementary menu Takes you to the Supplementary menu 7 4 2 Supplementary Menu This section describes the Supplementary menu options Boot menu Supplementary menu Install new firmware Runs the firmware update program Ensure that there is no CD ROM in your CD ROM drive and that your firmware diskette is in the appropriate drive Choose this option to start the firmware update Note that it will appear as if your system is restarting as the firmware update program reinitializes the system
37. oter Problem When you turn on your computer nothing displays Solutions Check the following Ensure that the video card is correctly connected to the monitor Ensure that the flash ROM update procedure was performed correctly If you have a terminal attached to COM1 check the output for error messages after ver ifying that the flash ROM update procedure was performed correctly Problem While booting the Windows NT operating system you receive one of the following error messages The required system file DISPLAY_DRIVER DLL is bad or missing The required system file DISPLAY_DRIVER SYS is bad or missing Solutions These error messages indicate video driver problems Use the following chart to solve common video driver problems If the Then Driver becomes disabled Boot the Windows NT operating system with the last known good configuration Incorrect video driver is chosen while installing the Windows NT operating system Reinstall the Windows NT operating system with the correct driver New video card was installed before the driver was installed Reinstall the old video card boot the Windows NT operating system and install the driver for the new video card Then install the new video card and reboot the Windows NT operating system 38 Troubleshooting 8 1 Beep Codes The beep codes provide error information about the AlphaPC 164 system Table 26 lists and describes the beep codes
38. ovides a brief description of the available key functions at the bottom of the screen During the Windows NT installation procedure you may be prompted for the type of computer that you have For the AlphaPC 164 system choose Digital AlphaPC 164 If AlphaPC 164 is not one of the choices then insert the Update and Windows NT 3 51 Firmware diskette The following procedure supersedes the Starting Setup on a RISC Based Computer section of the Microsoft Windows NT installation guide To start the Windows NT Setup program follow this procedure 1 Insert the Windows NT compact disc in the CD ROM drive 2 Restart your computer 3 From the Boot menu choose Supplementary menu 4 From the Supplementary menu choose Install Windows NT from CD ROM 5 Follow the instructions on the screen Note If you have an Alpha Windows NT driver diskette for your video card you can use the driver to install the Windows NT operating system Follow this procedure 1 Choose Custom Setup 2 Choose display type Other and insert the graphics disk driver when asked for the manufacturer supplied hardware support disk Troubleshooting 37 8 Troubleshooting This section provides solutions to some of the common problems that you may encounter while using the Windows NT firmware and installing the Windows NT operating system This section also provides a description of post and beep codes and instructions on how to use the fail safe bo
39. r is loaded For more information about the fail safe booter refer to Section 8 3 3 7 Flash ROM Update Jumper J31 When J31 2 3 are jumpered together default the flash ROM is write enabled When J31 1 2 are jumpered together the flash ROM is write protected AlphaPC 164 Connector Pinouts 11 4 AlphaPC 164 Connector Pinouts This section lists the pinouts of all connectors see Table 5 through Table 21 See Figure 1 for connector locations Table 5 Peripheral Component Interface PCI Bus Connector Pinouts Pin Signal Pin Signal Pin Signal Pin Signal 32 Bit and 64 Bit PCI Connectors J19 J20 J26 J29 A1 TRST A2 12V A3 TMS A4 TDI A5 VDD A6 INTA A7 INTC A8 VDD A9 A10 VDD A11 A12 GND A13 GND A14 A15 RST A16 VDD A17 GNT A18 GND A19 A20 AD 30 A21 3V A22 AD 28 A23 AD 26 A24 GND A25 AD 24 A26 IDSEL A27 3V A28 AD 22 A29 AD 20 A30 GND A31 AD 18 A32 AD 16 A33 3V A34 FRAME A35 GND A36 TRDY A37 STOP A38 STOP A39 3V A40 SDONE A41 SBO A42 GND A43 PAR A44 AD 15 A45 3V A46 AD 13 A47 AD 11 A48 GND A49 AD 09 A50 Not used A51 Not used A52 C BE 0 A53 3V A54 AD 06 A55 AD 04 A56 GND A57 AD 02 A58 AD 00 A59 VDD A60 REQ64 A61 VDD A62 VDD B1 12V B2 TCK B3 GND B4 TDO B5 VDD B6 VDD B7 INTB B8 INTD B9 PRSNT1 B10 B11 PRSNT2 B12 GND B13 GND B14
40. st be out 6 Restore power to the system Table 23 Memory Upgrade Options Option Memory Bus Width Before Memory Bus Width After Upgrade Possibilities 1 128 bit 128 bit Replace the 4 SIMMs in sockets J5 through J8 with SIMMs of greater size thus retaining the 128 bit memory bus width 2 128 bit 256 bit Add 4 SIMMs in sockets J9 through J12 with sizes equal to those in sockets J5 through J8 thus widening the memory bus width to 256 bits 3 256 bit 256 bit Replace the 8 SIMMs in sockets J5 through J12 with SIMMs of greater size Interrupts and ISA Bus Addresses 21 6 Interrupts and ISA Bus Addresses This section lists the system and I O interrupt assignments It also lists the physical AlphaPC 164 I O space assignments 6 1 Interrupts Table 24 lists each AlphaPC 164 ISA interrupt and its source 1The symbol indicates an active low signal Table 24 ISA Interrupts Interrupt Number Interrupt Source IRQ0 Internal timer 1 IRQ1 Keyboard IRQ2 Interrupt from controller 2 IRQ3 COM2 IRQ4 COM1 IRQ5 Available IRQ6 Diskette IRQ7 Parallel port IRQ8 1 Reserved IRQ9 Available IRQ10 Available IRQ11 Available IRQ12 Mouse IRQ13 Available IRQ14 IDE IRQ15 IDE 22 Interrupts and ISA Bus Addresses 6 2 ISA I O Address Map Table 25 lists the AlphaPC 164 ISA I O space address mapping 6 3 Flash ROM Address Map The address range for the flash ROM is FFF8 0000 FFF
41. t 1916 and 19A are hexadecimal numbers Extents Extents are specified by a single number or a pair of numbers in angle brackets lt gt separated by a colon and are inclusive For example bits lt 7 3 gt specify an extent including bits 7 6 5 4 and 3 Multiple bit fields are shown as extents Register Figures Register figures have bit and field position numbering starting at the right low order and increasing to the left high order Signal Names All signal names are printed in boldface type Signals whose names originate in an industry standard specification such as PCI or IDE are printed in the case used in the specification usually uppercase Active low signals have either a pound sign appended or a not overscore bar for example SDONE DEVSEL and RESET Italic Type Italic type emphasizes important information and indicates complete titles of documents 2 About This Manual Terms The following terms are used in this document This term Refers to Microsoft Windows NT installation guide The Microsoft Windows NT Workstation Installation Guide and the Windows NT Server Installation Guide Windows NT The Microsoft Windows NT Workstation and the Windows NT Server operating systems Features of the AlphaPC 164 Motherboard 3 2 Features of the AlphaPC 164 Motherboard This section lists the AlphaPC 164 motherboard features and shows the location of major components connectors
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