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2 Summary of the HP/Phoenix BIOS

Overview of Address Space

Interrupt Controllers

The system has two 8259A compatible interrupt controllers. They are
arranged as a master interrupt controller and a slave that is cascaded
through the master.

The following table shows how the master and slave controllers are
connected. The Interrupt Requests (IRQ) are numbered sequentially,
starting with the master controller, and followed by the slave.

1.

IRQ15 can be made available by disabling the secondary channel of the IDE
controller in the SETUP program.

2.

IRQ3 and IRQ4 can be made available by disabling the serial ports in the
SETUP program.

IRQ (Interrupt Vector)

Interrupt Request Description

IRQ0(08h)

System timer

IRQ1(09h)

Keyboard controller

IRQ2(0Ah)

Slave IRQ

Cascade connection from INTC2 (Interrupt Controller 2)

IRQ8(70h)

Real time clock

IRQ9(71h)

Available for PCI accessory boards, if not used by ISA boards

IRQ10(72h)

Available for PCI accessory boards, if not used by ISA boards

IRQ11(73h)

Available for PCI accessory boards, if not used by ISA boards

IRQ12(74h)

Mouse

IRQ13(75h)

Pentium processor

IRQ14(76h)

Integrated primary IDE hard disk controller

IRQ15(77h)

Free, if not used by secondary channel of IDE controller

1

(CD-

ROM)

IRQ3(0Bh)

Free, if not used used for serial port

2

IRQ4(0Ch)

Free, if not used used for communications board or serial port

2

IRQ5(0Dh)

3

Free, if not used used for sound board or parallel port

4

IRQ6(0Eh)

Flexible disk drive controller

IRQ7(0Fh)

Free, if not used used for parallel port

3

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Summary of Contents for Vectra 510

Page 1: ...HP Vectra 500 Series PC Hardware and BIOS Technical Reference Manual Models 510 5 xx 515 5 xx February 1996 ...

Page 2: ...t All rights are reserved No part of this document may be photocopied reproduced or translated to another language without the prior written consent of Hewlett Packard Company IBM is a registered trademark of International Business Machines Corporation Intel is a registered trademark of Intel Corporation Microsoft and MS DOS are U S registered trademarks of Microsoft Corporation Operating System 2...

Page 3: ...ation it is recommend the reference work cited in the next section For additional reference material refer to the bibliography Ordering Information for the Phoenix BIOS Manual System BIOS for IBM PCs Compatibles and EISA Computers ISBN 0 201 57760 7 by Phoenix Technologies is available in many bookstores It can also be ordered directly from the publisher as follows In the U S A Call Addison Wesley...

Page 4: ...7 by Phoenix Technologies Addison Wesley publisher The following Hewlett Packard publications may also assist the reader of this manual HP Vectra 500 Series Familiarization Guide The HP Part Number is D41xx 49A90001 HP Vectra 500 Series PC Reference Guide for either the desktop or minitower supplied with the PC The HP Part Number for these books are D4140 90001 Desktop D4170 90001 Minitower HP Vec...

Page 5: ...uction and Data Cache 9 Data Integrity 10 PCI Chip Set 10 PCI Cache and Memory Controller 82437FX 12 Data Path Unit 82438FX 13 The PCI ISA Bridge and IDE Controller 82371FB 14 The 82438FX and 82371FB Feature Summary 14 Super I O Chip 15 NS PC87332VF Feature Summary 16 Flexible Drive Controller FDC 16 Serial Parallel Ports 17 Graphics Integrated Video 17 IDE to PCI Controller 18 Flash ROM 18 Securi...

Page 6: ...Verifying the DMI Information Structure 35 DMI Sub Structure Tables 35 4 Power On Self Tests and Error Messages Power On Self Test POST 42 Shadow RAM 42 Error Messages 45 Beep Codes 47 5 The Ultra VGA Video Controllers The Integrated Ultra VGA Video Controller 50 Video Memory 50 Video Modes 51 Typical Windows 95 Video Resolutions 55 VESA Connector 55 DB15 Connector Pinout 56 Video Controller Summa...

Page 7: ...1 1 HP Vectra 500 Series This chapter provides a description of the HP Vectra 500 Series desktop Models 510 5 xx and minitower Models 515 5 xx PCs with detailed system specifications ...

Page 8: ...ache memory optional 256 KB synchronous cache are standard on the following models 515MC 5 133 515MCx 5 133 515MCx 5 166 Main memory 8 MB or 16 MB standard 128 MB maximum Video controller Trio 64 PnP on PCI bus Video memory 1 MB standard upgradable to 2 MB Enhanced IDE hard disk controller Integrated in chip set part of 82371FB multipurpose chip Integrated on PCI bus Primary channel dedicated for ...

Page 9: ...rive or a 5 25 inch disk drive Two connectors for 3 5 inch flexible disk drive One connector for 5 25 inch flexible disk drive or a tape drive Maximum two devices connected simultaneously Accessory board slots on backplane One 16 bit ISA short 16cm 6 3 inch One 16 bit ISA full length One 32 bit PCI or one 16 bit ISA Combination full length One 32 bit PCI full length One 16 bit ISA short length Two...

Page 10: ... 82371FB PCI ISA Bridge S3 Trio Video Controller SMC932 Super I O Controller I O Decode Logic BIOS Flash ROM Pentium Processor Intel Triton 82437 8FX Chipset Host Bus PCI Bus ISA Bus PCI Accessory Board Slots ISA Accessory Board Slots IDE Controller Channel 1 IDE Controller Channel 2 FDD Parallel Serial 1 Serial 2 Keyboard Mouse Flash Support ...

Page 11: ...ard disk drives a secondary IDE channel for an IDE CD ROM drive and in the mini tower models a fourth IDE device such as a third IDE hard disk drive a combined controller on the ISA bus for 2 flexible disk drives and or tape drives 2 serial ports 1 parallel port sockets for DRAM main memory the HP Vectra 500 Series PCs provide six sockets for main memory allowing installation of up to 128 MB a sys...

Page 12: ...6 1 HP Vectra 500 Series Principal Components and Features HP Vectra 500 Series System Board This video upgrade applies only to the models with integrated video controller 3 3V ...

Page 13: ...7 1 HP Vectra 500 Series Principal Components and Features HP Vectra 500 Series Desktop Backplane HP Vectra 500 Series Minitower Backplane ...

Page 14: ...ket Superscalar Architecture The Pentium processor s superscalar architecture has two instructions pipelines and a floating point unit each capable of independent operation The two pipelines allow the Pentium to execute two integer instructions in parallel in a single clock cycle Using the pipelines halves the instruction execution time and almost doubles the performance of the processor compared ...

Page 15: ...8 KB in size with a 32 bit line The cache acts as temporary storage for data and instructions from the main memory As the system is likely to use the same data several times it is faster to get it from the on chip cache than from the main memory Each cache has a dedicated Translation Lookaside Buffer TLB The TLB is a cache of the most recently accessed memory pages The data cache is configured to ...

Page 16: ...t out of the microprocessor These parity bits are not used by the external subsystems Internally The processor uses functional redundancy checking to provide maximum error detection of the processor and its interface PCI Chip Set The chip set consists of three devices The PCI Cache and Memory Controller 82437FX Two Data Path Units 82438FX The PCI ISA bridge and IDE controller 82371FB The 82437FX a...

Page 17: ...82371FB PCI ISA Bridge BIOS Pentium Processor 82437FX PCI Cache and Memory Controller Host Bus PCI Bus ISA Bus 82438FX Data Path Unit PCI Master IDE Controller 82438FX Data Path Unit ISA Bus Controller PCI Master PCI Slave APIC Cache Controller Write Buffer Main Memory Controller PCI Slave ...

Page 18: ...s all processor writes to main memory Buffers memory writes to PCI for selected memory regions Supports 3 1 1 11 write access timing DRAM controller Uses dedicated DRAM memory address and data buses Page mode one or two pages open simultaneously Supports pipelined accesses Full RAS CAS programmability Flexible bank configurations each bank programmable for DRAM size bank width and single or double...

Page 19: ...involve a full cache line and so require four back to back cycles to complete The first cycle in each burst of four always requires more time to complete than the three subsequent cycles This is because the first cycle includes the addressing phase and precharge timing for memory PCI master interface Provides for programmable PCI bus memory regions in memory address map Supports PCI bus burst cycl...

Page 20: ...ssory Board Slots The 82438FX and 82371FB Feature Summary Function Features Data buffer for 82438FX and 82371FB together Provides a high performance 64 bit data path between the processor local bus and main memory Provides a 32 bit data path to the PCI bus Provides a 8 deep x 64 bits wide write buffer for all processor writes to main memory Provides a one level posted write buffer for all processo...

Page 21: ...allel port two serial ports keyboard controller RTC 256 bytes of CMOS memory ISA bus controller for 82371FB only Fully compatible with ISA bus standard Supports asynchronous ISA bus operation up to 16 MHz Integrates two 82C37A DMA controllers two 82C59A interrupt controllers 82C54 timer hidden ISA refresh controller support for BIOS port A B and NMI logic Fast IDE controller for 82371FB only Suppo...

Page 22: ...dia sense support UARTs Software compatible with the PC16550A and PC16450 MIDI compatible Bidirectional parallel port Enhanced Parallel Port EPP compatible Extended Capabilities Port ECP compatible Bidirectional under either software or hardware control Ability to multiplex FDC signals on parallel port pins for external FDD Includes protection circuit against damage caused when printer is switched...

Page 23: ...278h IRQ5 or disabled Graphics Integrated Video The integrated video subsystem is composed of a PCI bus video controller and a DRAM array The HP Vectra 500 Series PC uses the S3 Trio 64 PnP video controller These video controller embed a RAMDAC and supports video resolutions of up to 1280 x 1024 Video Controller The S3 Trio 64PnP video controllers offer full compatibility with VGA In addition the ...

Page 24: ...nfiguration supported by each installed IDE drive Supports data transfer rate of up to 12 MB s 32 bit Windows and DOS I O transfers many IDE controllers use Windows integral IDE driver which only supports 16 bit I O transfers Flash ROM The PC uses 128 KB of 200ns Flash ROM The HP BIOS boot code contains SETUP video BIOS error messages and ISA and PCI initialization During programming of the Flash ...

Page 25: ...e disabled in SETUP communications port protection ports can be disabled in SETUP flexible disk drive protection disks can be read and or write protected in SETUP boot protection boot on flexible disk CD ROM and hard disk can be enabled or disabled in SETUP cover lock and in the desktop security bracket ...

Page 26: ...d 200 240 Vac auto ranging at a frequency of 50 and 60 Hz Desktop Unit Weight 20 lbs 9 kg Dimensions 15 3 inches D by 16 5 inches W by 4 9 inches H 39 cm by 42 cm by 12 5 cm Footprint 1 8 sq ft 0 17 m2 Minitower Unit Weight 28 7 lbs 13 kg Dimensions 17 3 inches D by 7 6 inches W by 17 2 inches H 44 cm by 19 2 cm by 43 8 cm Footprint 0 9 sq ft 0 084 m2 Keyboard Flat 18 inches W by 7 inches D by 1 3...

Page 27: ...ies Minitower PCs are equipped with a 160 W continuous rated power supply This power supply requires an input voltage in the following range 100 127 Vac and 176 264 Vac at a frequency of 47 Hz to 63 Hz with manual switching between 115 and 230 V Heat Dissipation Maximum thermal dissipation 91 kcal per hour 360 BTUs per hour Power Availability Continuous Operation 160 W continuous 200 W peak For ea...

Page 28: ... 40 to 104 F 5 C to 40 C Recommended Operating Temperature 59 F to 158 F 15 C to 30 C Storage Temperature 40 F to 158 F 40 C to 70 C Over Temperature Shutdown 122 F 50 C Operating Humidity 15 to 80 relative Storage Humidity 8 to 80 relative Operating Altitude 10000 ft 3100m max Storage Altitude 15000ft 4600m max Operating Temperature 41 to 104 F 5 C to 40 C Recommended Operating Temperature 59 F t...

Page 29: ...ummary of the main features of the new HP Phoenix system BIOS For a more detailed description refer to the manual System BIOS for IBM PCs Compatibles and EISA Computers by Phoenix Technologies Ltd Information for ordering this manual is given in the preface ...

Page 30: ...escribed in chapter 3 The Power On Self Test or POST which is the sequence of tests the PC performs to ensure that the system is functioning correctly described in chapter 4 Overview of Address Space Peripheral devices accessory devices and system controllers are accessed via the system I O space which is not located in system memory space The 64 KB of addressable I O space comprises 8 bit and 16 ...

Page 31: ...eo Memory C0000h C7FFFh 32 KB Video BIOS C8000h DFFFFh 96 KB Accessory Boards Memory E0000h E7FFFh 32 KB Available E8000h EFFFFh Reserved F0000h FFFFFh 64 KB System BIOS 100000h FFFFFFFFh 1 MB plus Extended Memory I O Address Ports Function Bits 0000 000F DMA Controller 1 8 0020 0021 Interrupt Controller 1 8 0040 0043 Interval Timer 1 8 0060 0064 Keyboard Controller 8 0061 NMI Status and Control 8...

Page 32: ...t 4 02F8 02FF Serial Port 2 0330 0331 MPU MIDI Interface1 0370 0377 Secondary Flexible Disk Controller 0378 037F Parallel Port 2 0388 38B FM Music Synthesizer1 03B0 03DF Integrated Video Graphics Controller 03C0 03DF Integrated Video Graphics Controller 03BC 03BF Parallel Port 1 03E8 03EF Communications Board1 03F0 03F5 03F7 Integrated Flexible Disk Controller 03F8 03FF Serial Port 1 0CF8 0CFF Use...

Page 33: ...MA transfer allowed are I O to memory and memory to I O I O to I O and memory to memory transfers are disallowed by the hardware configuration The following table summarizes how the DMA channels are allocated First DMA controller used for 8 bit transfers Channel Function 0 Free 1 Free if not used for parallel port or sound board 2 Flexible disk drive controller 3 Free if not used for parallel port...

Page 34: ...Vector Interrupt Request Description IRQ0 08h System timer IRQ1 09h Keyboard controller IRQ2 0Ah Slave IRQ Cascade connection from INTC2 Interrupt Controller 2 IRQ8 70h Real time clock IRQ9 71h Available for PCI accessory boards if not used by ISA boards IRQ10 72h Available for PCI accessory boards if not used by ISA boards IRQ11 73h Available for PCI accessory boards if not used by ISA boards IRQ...

Page 35: ...interrupt request will be re directed to one of the IRQ lines made available for PCI devices All PCI devices with interrupt transfer support will use and share INTA A multiple function PCI device may support several INT lines These devices will require more than one system interrupt request line 3 If there is a need to use another IRQ for the sound board the following Interrupt Vectors can be used...

Page 36: ...30 2 Summary of the HP Phoenix BIOS Overview of Address Space ...

Page 37: ...31 3 Desktop Management Interface This chapter describes an important feature of HP s new style BIOS the Desktop Management Interface or DMI ...

Page 38: ...r the serial number the processor type and the size of the hard disk drive This information is stored in the Management Information Format Database or MIF Pointers are used to indicate the position of a table or a string value The following rules apply to pointers Pointers must never be zero For empty strings the pointer must point to a null zero value Far pointers are in Intel little endian forma...

Page 39: ...33 3 Desktop Management Interface DMI Information Structure Overview of the DMI Information Structure ...

Page 40: ... the table is given by the second byte The next table follows immediately after the current one 5 Read off the required values Each type of table has a pre defined format For a list of the major table types refer to DMI Sub Structure Tables on page 35 6 Use the pointer to retrieve string values All string values are terminated by a null zero value The DMI Header The DMI header is the starting poin...

Page 41: ...r the DMI header When adding together the bytes of the header ex clude the checksum byte offset 0Dh 3 Verify this value against the checksum given for the DMI header 4 Retrieve the position and length of the DMI structures 5 Calculate the checksum value for the DMI structures 6 Verify this value against the checksum given for the DMI structures DMI Sub Structure Tables Each type of table has a pre...

Page 42: ...o string containing BIOS release date BIOS Characteristics 10h 4 bytes DWORD variable bit field Bit field value indicating which functions the BIOS supports BIOS ROM Size 14h 1 byte variable Value indicating the size of the BIOS ROM 0 64K 1 128K 2 256K 3 512K etc Type 2 Component ID Field Offset Length Value Description Type 0h 1 byte 2 Component ID table Length 1h 1 byte 0Ah Table length Manufact...

Page 43: ...mily 3h 1 byte ENUM Value indicating processor family 1 Other 2 Unknown 6 80486 A 80487 B Pentium 20 Power PC Processor Manufacturer 4h 2 bytes WORD variable Near pointer to string containing processor manufacturer s name Processor Version 6h 2 bytes WORD variable Near pointer to string describing the processor Max Speed 8h 2 bytes WORD variable Decimal value of maximum processor speed Example 66d...

Page 44: ... 1 byte BITMAP Bit 7 1 Tatooing supported Bit 6 1 PCMCIA device is present Bit 5 1 Infrared is present Bit 4 1 Two embedded serial ports present Bit 3 1 Minitower 1 or Desktop 0 Bit 2 1 Embedded LAN present Bit 1 1 Using integrated video Bit 0 1 Supports HP LAN boot ROM Type 81h HP Configuration ID Field Offset Length Value Description Type 0h 1 byte 81h HP Configuration table Length 1h 1 byte 3 T...

Page 45: ...bytes variable Short pointer to string containing date and time of last boot Format ccyymmddHHMM The value indicates RTC has failed Base Memory Size 04h 2 bytes variable Size of base memory in kilobytes Extended Memory Size 06h 2 bytes variable Extended Memory size in 64 KB blocks HP BIOS Version 08h 4 bytes variable Long pointer to string describing HP BIOS version CPU Name 0Ch 2 bytes variable S...

Page 46: ...40 3 Desktop Management Interface Accessing BIOS DMI Information ...

Page 47: ...41 4 Power On Self Tests and Error Messages This chapter describes the power on self tests POST which are contained in the PC s ROM BIOS and the error messages which can result ...

Page 48: ... resume If the POST is initiated by a soft reset Ctrl Alt and Delete the RAM tests are not executed and shadow RAM is not cleared In all other respects the POST executes in the same way following power on or a soft reset NOTE The POST does not detect when a slave hard disk drive HDD 1 or HDD 3 in the setup has been installed or changed Shadow RAM On HP personal computers access to certain ROM data...

Page 49: ...ystem will execute from ROM This test is not performed after a soft reset using Ctrl Alt and Delete Load CMOS Memory Checks the serial EEPROM and returns an error code if it has been corrupted Copies the contents of the EEPROM into CMOS RAM CMOS RAM Test Checks the CMOS RAM for start up power loss verifies the CMOS RAM checksum s Test failure causes error codes to display Internal Cache Memory Tes...

Page 50: ...ddress lines stuck together Test failure causes an error code to display Size Extended Memory Sizes and clears the protected mode extended memory and writes the value into CMOS bytes 30h and 31h If the system fails to switch to protected mode an error code is displayed Real Mode Memory Test First 640KB Read write test on real mode RAM This test is not done during a reset using Ctrl Alt and Delete ...

Page 51: ...or code to display Serial Port Tests Serial Port Test Tests the integrated serial port registers as well as any other serial ports Test failure causes an error code to display Hard Disk Drive Tests Hard Disk Controller Subsystem Test Tests for proper operation of the hard disk controller Test failure causes an error code to display The test does not detect hard disk replacement or changes in the s...

Page 52: ...days When you Power on the PC run Setup to update the configuration information The message should no longer be displayed Should the problem persist replace the battery Keyboard error Check that the keyboard is connected Resource Allocation Conflict PCI device 0079 on system board Clear CMOS Video Plug and Play interrupted or failed Re enable in Setup and try again You may have powered your PC Off...

Page 53: ...age Beep Pattern Numeric Code Description B4 This does not indicate an error There is one short beep before system startup 98 Video configuration failure or Option ROMs checksum failure 16H BIOS ROM checksum failure 20H DRAM refresh test failure 22H 8742 Keyboard controller test failure 2C RAM failure 2E RAM failure on data bits in low byte of memory bus 30 RAM failure on data bits in high byte of...

Page 54: ...48 4 Power On Self Tests and Error Messages Power On Self Test POST ...

Page 55: ...5 The Ultra VGA Video Controllers This chapter gives details of the Video Subsystems used by the HP Vectra 500 Series PCs All models have the Trio S3 64 PnP video controller integrated on the system board ...

Page 56: ...ng features 100 compatible with IBM VGA display standard 32 bit video memory access with 1 MB DRAM This increases to 64 bit access when an additional 1 MB DRAM is installed Hardware acceleration of graphical user interface GUI operations Support for up to 2 MB DRAM at 60 ns Graphics resolutions of up to 1280 x 1024 Integrated 24 bit RAMDAC Green PC power saving features Standard and Enhanced Video...

Page 57: ...VGA text 40 x 25 chars b w 70 31 5 28 322 01h VGA text 40 x 25 chars 16 70 31 5 25 175 01h VGA text 40 x 25 chars 16 70 31 5 25 175 01h VGA text 40 x 25 chars 16 70 31 5 28 322 02h VGA text 80 x 25 chars b w 70 31 5 25 175 02h VGA text 80 x 25 chars b w 70 31 5 25 175 02h VGA text 80 x 25 chars b w 70 31 5 28 322 03h VGA text 80 x 25 chars 16 70 31 5 25 175 03h VGA text 80 x 25 chars 16 70 31 5 25...

Page 58: ... 50 000 103h 6Bh graph 800 x 600 256 75 46 8 49 500 104h 6Ch graph 1024 x 768 16 43 i 35 5 44 900 104h 6Ch graph 1024 x 768 16 60 48 4 65 000 104h 6Ch graph 1024 x 768 16 70 56 5 75 000 104h 6Ch graph 1024 x 768 16 75 60 2 80 000 105h 6Dh graph 1024 x 768 256 43 i 35 5 44 900 105h 6Dh graph 1024 x 768 256 60 48 4 65 000 105h 6Dh graph 1024 x 768 256 70 56 5 75 000 105h 6Dh graph 1024 x 768 256 75 ...

Page 59: ...68 16 M 43 i 35 2 44 900 119 79h graph 1280 x 1024 32 K 45 i 48 7 75 000 11A 7A graph 1280 x 1024 64 45 i 48 7 75 000 120 7c graph 1600 x 1200 256 48 5 i 62 65 000 x 2 201 49 graph 640 x 480 256 60 31 5 25 175 201 49 graph 640 x 480 256 72 37 9 31 500 201 49 graph 640 x 480 256 75 37 5 31 500 202 4A graph 800 x 600 16 56 35 1 36 000 202 4A graph 800 x 600 16 60 37 9 40 000 202 4A graph 800 x 600 1...

Page 60: ... 37 500 x 2 107h 6Fh graph 1280 x 1024 256 60 63 7 55 000 x 2 107h 6Fh graph 1280 x 1024 256 72 77 7 65 000 x 2 107h 6Fh graph 1280 x 1024 256 75 79 5 67 500 x 2 115h 75h graph 800 x 600 16 M 60 37 9 40 000 115h 75h graph 800 x 600 16 M 72 41 8 50 000 115h 75h graph 800 x 600 16 M 75 46 8 49 500 116h 76h graph 1024 x 768 32 K 43i 35 44 900 116h 76h graph 1024 x 768 32 K 60 48 9 65 000 116h 76h gra...

Page 61: ...and the synchronization signals To use the VESA feature connector in DOS or Windows 95 the FCON EXE utility must be executed This utility configures the system WARNING Use of the VESA feature connector will disable the 1 MB video memory upgrade if one is installed Only the standard 1 MB of video memory will be used 1 Interlaced Resolution Number of colors Refresh Rate Hz Memory 640 x 480 16 256 64...

Page 62: ...on of major graphics operations to speed up applications using graphical user interfaces GUIs yes DRAM support 1 2 MB of 60 ns 1 MB preinstalled with 2 sockets for upgrade to 1 MB pair of 512KB modules Graphics Resolutions Up to 1280 x 1024 Pixel Clock Max 135 MHz 6 Ground 11 Not Used 12 Data from display DDC1 13 H Sync 14 V Sync 15 Not Used 7 Ground 8 Ground 10 Ground 9 Not Used Red 1 Green 2 Blu...

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