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LSI SYM8953U User's Manual

1. Note J1 PCI 32 bit universal board connector J2 68 pin HD connector e J3 68 pin HD connector 44 4 pin low density connector A 1 2 Electrical Characteristics The SYM8953U maximum power requirement including SCSI TERMPWR termination power under normal operation is as follows Table A 1 Maximum Power Requirements 5VDC Over the operating range 0 C to 55 C Under abnormal conditions such as a short on SCSI TERMPWR 5 V current may be higher At temperatures of at least 25 C a current of 4 A is sustained no longer than 30 seconds before the self resetting TERMPWR short circuit protection device F1 opens A 2 Technical Specifications The PCI PRSNT1 and PRSNT2 pins are set to indicate a 7 5 W maximum configuration A 1 3 Thermal Atmospheric Characteristics The board is designed to operate in an environment defined by the following parameters e Temperature range 0 C to 55 C dry bulb e Relative humidity range 5 to 90 noncondensing e Maximum dew point temperature 32 C e Storage Temperature 45 C to 105 C dry bulb A 1 4 Electromagnetic Compliance The board is designed and implemented to minimize electromagnetic emissions susceptibility and the effects of electromagnetic discharge The board meets the requirements of FCC Class B and CISPR 22 limits and is marked with the FCC Class B Declaration of Conformity Symbol It also carries the CE mark A 1 5 Safe
2. 3 3 V 21 5V 1 Highlighted signals are not connected Technical Specifications A 2 2 The SCSI Interface The SCSI interface conforms to ANSI X 3T10 11 1142 The SCSI interface operates as 16 bit synchronous or asynchronous SE or LVD and supports SCSI 3 protocols and 8 bit and 16 bit arbitration The interface is made through connectors J2 and J3 Active SE or LVD SCSI termination is provided automatically SCSI termination power is supplied by the board Connector J2 is a 68 pin HD right angle header used for internal connections Connector J3 is a 68 pin HD right angle connector that protrudes through the back panel bracket and is used for external connections Table A 4 and Table A 5 show the signal assignments for J2 and J3 respectively Operational Environment A 7 A 8 Table A 4 Internal SCSI Connector J2 Signal Name Signal Name l N o Al A c0 N o eo 4 N A C zi AR E c1 DIFFSENS E o J2 SENS TERMPWR N TERMPWR TERMPWR A TERMPWR N C 4 o N C GND Nm eo GND SATN N A SATN GND N N GND SBSY N Co SBSY SACK M ER SACK SRST m oa SRST SMSG pe o SMSG SSEL N NI SSEL SCD hv oo SCD SREQ N o SREQ SlO wo o S
3. 1 2 1 PCI Interface Supports 32 bit DMA bus master with 64 bit addressing Bursts up to 133 Mbytes s 33 MHz with zero wait state bus master data Supports universal 3 3 V and 5 V PCI bus voltage Supports 32 bit 33 MHz data bursts with variable burst lengths Bursts 2 to 128 dwords across the PCI bus Prefetches up to 8 dwords of SCRIPTS instructions Supports PCI Write and Invalidate Read Line and Read Multiple commands 1 2 2 SCSI Interface Supports 16 bit LVD and SE signaling Supports SCRIPTS Includes 8 Kbytes RAM for SCRIPTS instruction storage Automatically enables LVD or SE termination 1 2 Using the SYM8953U Host Adapter Contains external 68 pin High Density HD and internal 68 pin HD latching connectors Performs wide Ultra2 SCSI LVD synchronous transfers up to 80 Mbytes s Supports SCSI synchronous offset up to 31 Provides SCSI termination power TERMPWR source with autoresetting circuit protection device Supports SCSI Configured AutoMatically SCAM Level 1 Capability Set OFF by default Utilizes flash ROM for BIOS storage for up to 256 Kbytes Supports variable block size and scatter gather data transfers Performs complex SCSI bus sequences without interrupts including restore data pointers Has serial EEPROM for user configuration utility Has SCSI bus activity LED connector and on board LED 1 2 3 Board Characteristics PCI board dimensions 152 4 x 88 90 mm 6 00 x 3 5 inches PCI Uni
4. The three bus configurations are e Section 2 2 6 1 Internal Bus Connections e Section 2 2 6 2 External Bus Connections e Section 2 2 6 3 Internal and External Bus Connections Termination on the SYM8953U host adapter for these three different bus configurations is discussed below 2 18 Installing the SYM8953U Host Adapter 2 2 6 1 Internal Bus Connections If you have only internal SCSI device connections to your host adapter you must terminate the last internal device on the SCSI bus You must disable the terminators on all other devices Termination on your host adapter is automatically enabled in this case Figure 2 12 shows an example of how termination is determined for this SCSI bus configuration Figure 2 12 Internal SCSI Device Termination Last Device on Bus Terminators S gt Enabled IISc A a ee T EU ind d f Automatically rd Detailed Installation Procedure 2 19 2 2 0 2 External Bus Connections If you have only external SCSI device connections to your host adapter you must terminate the last external device on the SCSI bus You must disable the terminators on all other devices Termination on the host adapter is automatically enabled in this case Figure 2 13 shows an example of how termination is determined for this SCSI bus configuration Figure 2 13 External SCSI Device Termination Last Device S on Bus SG Terminators as Enabled LR X A D n Q
5. applications Additional spacing rules apply on Installing the SYM8953U Host Adapter SE and high power differential are not defined at Ultra2 speeds Figure 2 3 SCSI Cables Terminated SCSI Cable for Internal Connections for use with nonterminated internal devices 68 pin HD Een Terminated End SCSI Cable for Internal Connections 68 pin HD SCSI Cable for External Connections 68 pin HD Detailed Installation Procedure 2 2 4 Making Internal SCSI Bus Connections This section provides step by step instructions about making internal SCSI bus connections Step 1 Plug one end of the 68 pin internal SCSI ribbon cable into connector J2 see Figure 2 4 Important You must match pin 1 on this and all subsequent connections Figure 2 4 Internal SCSI Ribbon Cable to Host Adapter Connection Internal SCSI Interface J2 2 10 Installing the SYM8953U Host Adapter Step 2 If you have only two internal devices to connect plug the other end of the internal SCSI ribbon cable into the SCSI connector on your internal SCSI device An example of this connection is shown in Figure 2 5 Note For nonterminated internal SCSI devices a terminated cable will be required This connector must be on the end of the SCSI cable Figure 2 5 Internal SCSI Ribbon Cable to Internal SCSI Device Connection 2 11 Detailed Installation Procedure If you have more than one internal device to connect use an intern
6. Bus Func Number Control SYM53C895A 0 FCOO Enabled SYM53C896 0 F800 Disabled SYM53C896 E400 Enabled Table 3 2 Main Menu Fields and Descriptions Fields Descriptions Adapter Indicates the specific SYM53C8XX Host Adapter PCI Bus Indicates the PCI Bus number range 0x00 OxFF 0 255 decimal assigned by the system BIOS to an adapter The Symbios SCSI BIOS Configuration Utility Menus 3 5 Table 3 2 Main Menu Fields and Descriptions Cont Fields Descriptions Dev Func Indicates the PCI Device Function assigned by the system BIOS to an adapter The 8 bit value is mapped as follows Bit 76543210 Bits 7 3 Device range 0x00 0x1F 0 31 decimal Bits 2 0 Function range 0 7 Port Number Indicates which I O port communicates with an adapter as assigned by the system BIOS IRQ Indicates the Interrupt Request Line used by an adapter as assigned by the system BIOS NVM Indicates whether an adapter has NVM NonvVolatile Memory associated with it An adapter s configuration is stored in its associated NVM NVM can refer to NVRAM that is resident on a host adapter or to system NonVolatile Storage NVS Boot Order Indicates the relative boot order 0 to 3 of an adapter The Symbios SCSI BIOS traverses up to four adapters in the specified order in search of bootable media To modify this field access the Boot Adapter List Menu LSI Logic 3 2 3 Adapter Propert
7. Executable Select this option and press Enter to view and modify device properties SCSI Parity Configuration Yes No Indicates whether SCSI parity is enabled for an adapter When disabled it is also necessary to disable disconnects for all devices as parity checking for the reselection phase is not disabled If a non parity generating device disconnects its operation will never complete because the reselection fails due to parity error Host SCSI ID Configuration 0 to 7 O to 15 Indicates the SCSI identifier of an adapter It is recommended that this field be set to the highest priority SCSI identifier which is 7 SCSI Bus Scan Order Configuration Low to High 0 to Max High to Low Max to 0 Indicates the order in which to scan SCSI identifiers on an adapter Changing this item will affect drive letter assignment s if more than one device is attached to an adapter Removable Media Support 3 8 Configuration None Boot Drive Only With Media Installed Specifies the removable media support option for an adapter Removable media support only applies to devices that report themselves as a hard drive It does not apply to CD ROM devices or Magnetic Optical devices None indicates no removable media support whether the drive is selected as first BBS or is first in the scan order non BBS Boot Drive Only provides removable media support for a removable hard drive if
8. Synchronous Data Transfer System BIOS Ultra SCSI B 6 Any device that conforms to the SCSI standard and is attached to the SCSI bus by a SCSI cable This includes SCSI host adapters and SCSI peripherals A way to uniquely identify each SCSI device on the SCSI bus Each SCSI bus has eight available SCSI IDs numbered 0 through 7 or 0 through 15 for Wide SCSI The host adapter usually gets the highest ID 7 or 15 giving it priority to control the bus A SCSI programming language that works with the SCRIPTS processor that is embedded on the SYM53C8XX device These SCRIPTS reside in in host computer system memory The SCRIPTS processor allows users to fine tune SCSI operations with regard to unique vendor commands or new SCSI specifications The SCRIPTS processor fetches SCRIPTS instructions from system memory to control operation of the SYM53C8XX device SCSI Device Management System A LSI Logic software product that manages SCSI system I O A hardware specification for connecting SCSI devices It references each SCSI signal to a common ground This is the most common method as opposed to differential SCSI which uses a separate ground for each signal SCSI Trade Association A group of companies that cooperate to promote SCSI parallel interface technology as a viable mainstream I O interconnect for commercial computing One of the ways data is transferred over the SCSI bus Transfers are clocked with fixed frequency pulses
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10. The proper exit technique is described in Section 3 2 7 Exit Menu page 3 20 It also describes exiting the subordinate menus 3 2 The Symbios SCSI BIOS Configuration Utility Menus This chapter describes the menu system of the Symbios SCSI BIOS Configuration Menu System 3 2 1 Using the Menus You make your configuration changes in the main area of the menu As in the example menus it is lighter in color than the header or footer areas The commands you use to make changes are shown in the footer area and described in Table 3 1 Settings with black text can be changed settings with white text cannot This is true regardless of whether the Color or Mono setting is chosen in the Global Properties Menu Figure 3 6 described in detail later The Symbios SCSI BIOS Configuration Utility Menus 3 3 Table 3 1 Configuration Commands Command Description F1 Help Provides context sensitive help for the cursor resident field Arrow Keys Select Item Move the cursor up down left or right Change Item Changes items with values in brackets Only the numeric keypad and are enabled When pressed they toggle modifiable field to its next relative value toggles the value up and toggles the value down Esc Abort Exit Aborts the current context operation and or exits the current screen This option calls an Exit menu described further in Section 3 2 7 Home End Select Ite
11. This is faster than asynchronous data transfer Synchronous data transfers are negotiated between the SCSI host adapter and each SCSI device Controls the low level POST Power On Self Test and basic operation of the CPU and computer system A standard for SCSI data transfers It allows a transfer rate of up to 20 Mbytes s over an 8 bit SCSI bus and up to 40 Mbytes s over a 16 bit SCSI bus SCSI Trade Association STA supports using the term Ultra SCSI over the older term Fast 20 Glossary of Terms and Abbreviations Ultra2 SCSI VCCI VDE Virtual Memory Wide SCSI Wide Ultra SCSI Wide Ultra2 SCSI Word A standard for SCSI data transfers It allows a transfer rate of up to 40 Mbytes s over an 8 bit SCSI bus and up to 80 Mbytes s over a 16 bit SCSI bus SCSI Trade Association STA supports using the term Ultra2 SCSI over the term Fast 40 Voluntary Control Council for Interference Verband Deucher Elektroniker Association of German Electrical Engineers Space on a hard disk that can be used as if it were RAM A SCSI 2 feature allowing 16 bit or 32 bit transfers on the SCSI bus This dramatically increases the transfer rate over the standard 8 bit SCSI bus The SCSI Trade Association STA term for SCSI bus width 16 bits SCSI bus speed maximum data rate 40 Mbytes s The SCSI Trade Association STA term for SCSI bus width 16 bits SCSI bus speed maximum data rate 80 Mbytes s A two byte o
12. range 0 7 Boot Order Configuration 0 to 3 Indicates the relative boot order of the listed adapter The Symbios SCSI BIOS traverses up to four adapters in the specified order searching for bootable media Current Status Information Indicates whether an adapter in the boot list was enabled during the most recent boot Disabled adapters and their attached devices are ignored by the Symbios SCSI BIOS although they are still visible to the configuration utility Next Boot Configuration On Off The Symbios SCSI BIOS Configuration Utility Menus Indicates whether to enable an adapter upon the next boot The Symbios SCSI BIOS ignores disabled adapters and their attached devices although they are still visible to the configuration utility 3 17 3 2 6 Global Properties Menu The Global Properties Menu allows you to view display boot information and to set display and video modes Figure 3 6 provides an example of the Global Properties Menu Figure 3 6 Global Properties Menu Global Properties Pause If Boot Alert Displayed Yes Boot Information Display Mode Verbose Video Mode Cite XRestore Defaults gt 3 18 Configuring the SYM8953U Host Adapter Table 3 6 lists the fields on this menu and their descriptions Table 3 6 Global Properties Fields and Descriptions Pause When Boot Alert Displayed Field Type Value Configuration Yes No Description Specifies a p
13. 17 2 2 6 SCSI Bus Termination The devices making up the SCSI bus are connected serially chained together with SCSI cables The first and last physical SCSI devices connected on the ends of the SCSI bus must have their terminators active All other SCSI devices on the bus must have their terminators removed or disabled Remember that the SYM8953U host adapter is also on the SCSI bus its termination is automatically enabled when it is connected to the end of the bus Important To utilize Ultra2 SCSI performance you must only have LVD devices on the bus Do not mix any SE devices with LVD devices or the entire bus will drop to SE limiting bus performance to Ultra SCSI levels The peripheral device terminators are usually set with jumpers resistor modules or with a switch on the peripheral Refer to the peripheral manufacturer s instructions and to the user s manual for your computer for information on how to identify the terminator type setting for each device and how to set change it Caution The autoenable disable sensing feature on the SYM8953U may enable termination erroneously if it is directly cabled to another SCSI device or host adapter using the same sensing method The SYM8953U senses the presence of SCSI devices by detecting the ground signal on conductor 50 of the SCSI cable The SYM8953U automatically controls SCSI bus termination for three different bus configurations depending on how it is connected see Figure 2 1
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15. A disk made of metal and permanently sealed into a drive cartridge A hard disk can store very large amounts of information The computer system in which a SCSI host adapter is installed It uses the SCSI host adapter to transfer information to and from devices attached to the SCSI bus A circuit board or integrated circuit that provides a SCSI bus connection to the computer system A SCSI device installed inside the computer cabinet These devices are connected in a continuous chain using an unshielded ribbon cable Interrupt Request Channel A path through which a device can get the immediate attention of the computer s CPU The PCI bus assigns an IRQ path for each SCSI host adapter Industry Standard Architecture A type of computer bus used in most PCs It allows devices to send and receive data up to 16 bits at a time Kilobyte A measure of computer storage equal to 1024 bytes A way to connect peripherals directly to computer memory It bypasses the slower ISA and EISA buses PCI is a local bus standard A subdivision either logical or physical of a SCSI device actually the place for the device on the SCSI bus Most devices have only one logical unit but up to eight are allowed for each of the eight possible devices on a SCSI bus Logical Unit Number An identifier zero to seven for a logical unit Low Voltage Differential link allows greater Ultra2 SCSI device connectability and longer SCSI cables LVD Link lowers t
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18. Host Adapter Remember The SCSI bus requires proper termination and no duplicate SCSI IDs 2 2 Detailed Installation Procedure This section provides step by step instructions for installing the SYM8953U host adapter board and connecting it to your SCSI peripherals If you are experienced in these tasks you may prefer to use Section 2 1 Quick Installation Procedure 2 2 1 Before You Start Before starting look through the following task list to get an overall idea of the steps you will be performing If you are not confident you can perform the tasks as described here LSI Logic suggests getting assistance Open your PC cabinet and select an appropriate open PCI slot Insert the host adapter board Connect the internal and external SCSI peripherals Terminate the SCSI bus Set the peripheral SCSI IDs Make any configuration changes Close your PC cabinet Install the software The SCSI host adapter acts on your computer s behalf as the host to your suite of SCSI peripherals Each chain of SCSI peripheral devices and their host adapter work together and are referred to as a SCSI bus Each SCSI host adapter that you install can act as host for up to 15 peripheral devices not including the adapter itself Detailed Installation Procedure 2 3 2 2 2 Inserting the Host Adapter For safe and proper installation you will need the user s manual supplied with your computer for reference Perform the steps listed below to instal
19. SCSI Device Termination 2 19 Internal SCSI Ribbon Cable 2 10 Symbios SYM8953U PCI to Ultra2 SCSI Host Adapter IX 1 IRQ interrupt request line 3 6 L LED cable 2 14 LED Connector 2 14 LVD Link Technology 1 5 Main Menu Display 3 4 menus device properties 3 11 to 3 12 global properties 3 18 Multiple Internal SCSI Devices 2 13 N next boot description 3 17 NVM nonvolatile memory 3 6 0 Operational Environment A 3 P PCI bus description 3 5 PCI Connector J1 Back A 6 PCI Connector J1 Front A 5 PCI Interface 1 2 1 4 A 4 peripheral device SCSI IDs 2 22 peripheral device terminators 2 18 Physical Characteristics A 1 Physical Environment A 1 port number description 3 6 Q queue tags description 3 14 R removable media support description 3 8 ribbon cable 2 7 IX 2 Index S Safety Characteristics A 3 scan ID description 3 13 scan LUNs description 3 13 SCSI BIOS Configuration Utility 3 1 SCSI bus connections 2 7 SCSI bus scan order description 3 8 SCSI bus termination 2 18 SCSI Busy LED A 10 SCSI Device Management System SDMS 1 1 SCSI ID description 3 13 SCSI IDs 2 22 SCSI Interface 1 2 1 4 A 7 SCSI LED Connector 2 14 SCSI parity description 3 8 SCSI Peripherals 2 7 SCSI Ribbon Cable 2 10 SCSI time out description 3 14 secondary cluster server description 3 9 Setting SCSI IDs 2 22 spinup delay description 3 9 Starting the SCSI BIOS Configuration Utility 3 1 sync rate descr
20. device and reassigns defective Logical Block Addresses if enabled To verify all sectors select the device from the menu and use the arrow keys to move the cursor to the Verify column Press Enter lt Restore Defaults gt 3 14 Executable Press Enter to obtain default settings Configuring the SYM8953U Host Adapter 3 2 5 Boot Adapter List Menu The Boot Adapter List Menu specifies the order in which adapters boot when more than one Symbios adapter is in a system Up to four of the total adapters in a system can be selected as bootable This menu may also list additional adapters in your system that are not bootable As many as 256 adapters can be listed To control a Boot Volume only one of the four active controllers can be used To select this menu 1 Press F2 while on the Main Menu to move the cursor to the Optional Menu area 2 Move the cursor to Boot Adapter List with the arrow keys 3 Press Enter Adapters can be added or deleted using this menu Use the arrow keys to move the cursor to the lower list the adapter select list to add or remove an adapter To add an adapter to the boot list press the Insert key while on the Boot Adapter List Use the arrow keys to select the desired adapter and press Enter to add it to the end of the Boot Adapter List To change the configuration of the adapter use the arrow keys to move to the configuration you want to alter To remove an adapter from the boot
21. each SCSI signal to a common ground A double word is a group of four consecutive bytes or characters that are stored addressed transmitted and operated on as a unit The lower two address bits of the least significant byte must equal zero in order to be dword aligned Electronically Erasable Programmable Read Only Memory A memory chip typically used to store configuration information See NVRAM Extended Industry Standard Architecture An extension of the 16 bit ISA bus standard It allows devices to perform 32 bit data transfers A SCSI device installed outside the computer cabinet These devices are connected in a continuous chain using specific types of shielded cables The SCSI Trade Association STA supports the use of Ultra SCSI over the term Fast 20 Please See Ultra SCSI The SCSI Trade Association STA supports the use of Ultra2 SCSI over the term Fast 40 Please see Ultra2 SCSI A standard for SCSI data transfers It allows a transfer rate of up to 10 Mbytes s over an 8 bit SCSI bus and up to 20 Mbytes s over a 16 bit SCSI bus Federal Communications Commission Glossary of Terms and Abbreviations File Firmware Hard Disk Host Host Adapter Internal SCSI Device IRQ ISA Kbyte Local Bus Logical Unit LUN LVD Link Mainboard A named collection of information stored on a disk Software that is permanently stored in ROM Therefore it can be accessed during boot time
22. edge connector J1 see Figure 2 1 of the host adapter into the PCI slot Make sure the edge connector is properly aligned before pressing the board into place as shown in Figure 2 2 The bracket around connector J3 should fit where you removed the blank panel Note You may notice that the components on a PCI host adapter face the opposite way from non PCl adapter boards you have in your system This orientation is correct The board is keyed and will only go in one way Detailed Installation Procedure 2 5 Figure 2 2 Inserting the Host Adapter 23 Bracket Screw Bracket Surround Step 8 Secure the board with the bracket screw see Figure 2 2 before making the internal and external SCSI bus connections 2 6 Installing the SYM8953U Host Adapter 2 2 3 Connecting the SCSI Peripherals SCSI bus connections to the SYM8953U host adapter inside your computer can be made with an unshielded 68 conductor Ultra SCSI PVC ribbon cable see Figure 2 3 The lead connected to pin 1 on the cable is marked with a colored stripe The connectors on this cable may also be keyed to ensure proper pin 1 connection All external SCSI bus connections to the SYM8953U host adapter are made with high quality shielded 68 conductor cables see Figure 2 3 The connectors on this cable are always keyed to ensure proper pin 1 connection Note All the cables shown in Figure 2 3 are included in the Symbios A
23. host adapter controls the transfer of data directly to and from system memory without interrupting the computer s microprocessor This is the fastest way for multitasking operating systems to transfer data A unit of information consisting of eight bits A special international committee on radio interference Committee International and Special for Protection in Radio Symbios SYM8953U PCI to Ultra2 SCSI Host Adapter B 1 Configuration CPU DMA Bus Master Device Driver Differential SCSI Dword EEPROM EISA External SCSI Device Fast 20 Fast 40 Fast SCSI FCC B 2 Refers to the way a computer is set up the combined hardware components computer monitor keyboard and peripheral devices that make up a computer system or the software settings that allow the hardware components to communicate with each other Central Processing Unit The brain of the computer that performs the actual computations The term Microprocessor Unit MPU is also used A feature that allows a peripheral to control the flow of data to and from system memory by blocks as opposed to PIO Programmed I O where the processor is in control and the flow is by byte A program that allows a microprocessor through the operating system to direct the operation of a peripheral device A hardware configuration for connecting SCSI devices It uses a pair of lines for each signal transfer as opposed to Single Ended SCSI which references
24. to the SCSI bus and generates signal timing and bus protocol in compliance with SCSI standards The SCSI interface on the SYM8953U operates as an 8 bit or 16 bit interface It supports 8 bit or 16 bit synchronous and asynchronous LVD or SE Fast Ultra and Ultra2 SCSI protocols in various combinations The interface is made through connectors J2 and J3 see Figure 2 1 Internal connector J2 is a 68 pin HD right angle latching connector External connector J3 is a shielded 68 pin HD right angle connector exposed in the back panel bracket An on board LED labeled Activity indicates SCSI bus activity LVD SE dual mode active termination is provided on the SYM8953U board Termination is automatically disabled when both SCSI connectors are used The SYM8953U supplies SCSI bus TERMPWR through a blocking diode and a self resetting 1 5 A short circuit protection device A 40 MHz oscillator is installed on the SYM8953U to provide the clock frequency to the SYM53C895A that is necessary to support Ultra2 SCSI transfers of up to 80 Mbytes s Using the SYM8953U Host Adapter 1 3 3 Ultra2 SCSI Technology The SYM8953U fully supports Ultra2 SCSI Ultra2 SCSI is an extension of the SCSI Parallel Interface 2 and 3 SPI 2 and SPI 3 family of standards SCSI2 expands the bandwidth of the SCSI bus allowing faster synchronous data transfers For the internal bus special impedance SCSI ribbon cables are specified for operation with Ultra and Ultra2 SCSI de
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26. 3 50 inches PCI connection is made through edge connector J1 Internal SCSI connection is made through the 68 pin HD connector J2 External SCSI connection is made through the 68 pin HD connector J3 The J3 connector extends external to the cabinet through a bracket attached to the board and the face of the connector The bracket is a standard ISA type with a cutout to accommodate connector J3 The J4 connector is for connecting to the computer s drive activity LED It is a 4 pin one row right angle header wired in parallel with the on board SCSI Activity LED The component height on the top and bottom of the board conforms to the PCI Specification Revision 2 2 Symbios SYM8953U PCI to Ultra2 SCSI Host Adapter A 1 Figure A 1 SYM8953U Mechanical Drawing 152 4 mm 6 0 inches Activity oo00000000000000 TOTO TOMI On MAA TOTO TIT IT 88 990 mm 3 5 inches 5V_BOO SiG2 B GND B GG SIG1 B
27. 53C895A is a signaling technology that increases the reliability of SCSI data transfers over longer distances than supported by SE SCSI The low current requirements of LVD allow direct Interface Descriptions 1 5 integration of I O transceivers into the chip LVD provides the reliability of HVD SCSI without the added cost of external differential transceivers Ultra2 SCSI with LVD allows a longer SCSI cable and more devices on the bus using the same cables defined in the SCSI 3 parallel Interface SPI 2 standard for Ultra SCSI Important To utilize Ultra2 SCSI performance you must only have LVD devices on the bus Do not mix any SE devices with LVD devices or the entire bus will drop to SE limiting bus performance to Ultra SCSI levels 1 3 5 On Board LED 1 6 An on board LED CR1 indicates the status of the SCSI bus This SCSI Activity LED lights when the SCSI bus is transferring information It is located near J4 see Figure A 1 Using the SYM8953U Host Adapter Chapter 2 Installing the SYM8953U Host Adapter This chapter provides instructions on how to install the SYM8953U Host Adapter and includes these topics e Section 2 1 Quick Installation Procedure page 2 1 e Section 2 2 Detailed Installation Procedure page 2 3 e Section 2 3 Completing the Installation page 2 24 2 1 Quick Installation Procedure This section provides an overview of the installation procedure If you are an experienced computer
28. 6 Louisiana W E Tel 713 854 9953 North South A E Tel 800 231 0253 Tel 800 231 5575 Maine A E Tel 800 272 9255 W E Tel 781 271 9953 Maryland Baltimore A E Tel 410 720 3400 W E Tel 800 863 9953 Columbia B M Tel 800 673 7461 l E Tel 410 381 3131 Massachusetts Boston A E Tel 978 532 9808 W E Tel 800 444 9953 Burlingtonr l E Tel 781 270 9400 Marlborough B M Tel 508 480 9099 Woburn B M Tel 781 933 9010 Michigan Brighton E Tel 810 229 7710 Detroit A E Tel 734 416 5800 W E Tel 888 318 9953 Minnesota Champlin B M Tel 800 557 2566 Eden Prairie B M Tel 800 255 1469 Minneapolis A E Tel 612 346 3000 W E Tel 800 860 9953 St Louis Park l E Tel 612 525 9999 Mississippi A E Tel 800 633 2918 W E Tel 256 830 1119 Missouri W E Tel St Louis A E Tel 314 291 5350 l E Tel 314 872 2182 630 620 0969 Montana A E Tel 800 526 1741 W E Tel 801 974 9953 Nebraska A E Tel 800 332 4375 W E Tel 303 457 9953 Nevada Las Vegas A E Tel 800 528 8471 W E Tel 702 765 7117 New Hampshire A E Tel 800 272 9255 W E Tel 781 271 9953 New Jersey North South A E Tel 201 515 1641 Tel 609 222 6400 Mt Laurel l E Tel 609 222 9566 Pine Brook W E Tel 800 862 9953 Parsippany l E Tel 973 299 4425 Wayne W E Tel 973 237 9010 New Mexico W E Tel 480 804 7000 Albuquerque A E Tel 505 293 5119 U S Distributors by Sta
29. BES GND 45V AD23 AD12 INTB GND AD10 INTD AD21 GND GND PRSNT1 oo NI oO ay AJ OJN AD19 KEYWAY RESERVED A o 33V KEYWAY GND PRSNT2 AD17 ADO08 KEYWAY A N C BE2 ADO7 KEYWAY E Co GND 3 3 V RESERVED EF A IRDY ADO5 GND A ol 3 3 V ADO3 CLK A Oo DEVSEL GND GND N GND AD01 REQ A LOCK VI O VI O co PERR ACK64 AD31 N o 3 3V 5V AD29 21 5V 1 Highlighted signals are not connected Operational Environment A 5 Table A 3 Signal Name TRST PCI Connector J1 Back Signal Name AD28 Signal Name GND 12V AD26 PAR TMS GND AD15 TDI AD24 3 3 V 5V IDSEL AD13 INTA 3 3 V AD11 INTC AD22 GND 5V AD20 ADO9 RESERVED oloi NI Io a AJ Ww GND KEYWAY 5V E o AD18 KEYWAY RESERVED AD16 C_BE0 KEYWAY E ine 3 3 V 3 3 V KEYWAY Co FRAME ADO06 RESERVED zx AR GND AD04 RST E oa TRDY GND VIO o GND ADO2 GNT N STOP ADOO GND A oo 3 3 V VI O RESERVED A o SDONE REQ64 AD30 pe e SBO 5V
30. Does not Ms end Bus SN Terminators Disabled Host Adapter Automatically ji Terminated 2 20 Installing the SYM8953U Host Adapter 2 2 6 3 Internal and External Bus Connections If you have both internal and external SCSI device connections to your host adapter you must terminate the last internal and last external devices on the SCSI bus You must also disable the termination on all other devices Termination on the host adapter is automatically disabled in this case Figure 2 14 shows an example of how termination is determined for this SCSI bus configuration Figure 2 14 Internal and External SCSI Device Termination Last device on Bus Terminators Enabled Host Adapter Termination Automatically Disabled Do not end Bus Terminators Disabled Last Device on Bus Terminators Enabled Detailed Installation Procedure 2 21 2 2 7 Setting SCSI IDs 2 22 You must set each SCSI device and the host adapter to a separate SCSI ID 0 through 15 SCSI ID 7 is the preset host adapter setting giving it the highest priority on the SCSI bus If you plan to boot your computer from a SCSI hard disk drive on the SCSI bus that drive should have the lowest SCSI ID on the bus Typically SCSI ID 0 is used however for system performance optimization an ID other than 0 zero can be used Chapter 3 Configuring the SYM8953U Host Adapter explains how to set the h
31. IO SD08 wo A SD08 SD09 C N SD09 SD10 Cc C SD10 SD11 Technical Specifications wo BR SD11 Table A 5 External SCSI Connector J3 Signal Name Signal Name SD12 1 SD12 35 SD13 2 SD13 36 SD14 3 SD14 37 SD15 4 SD15 38 SDP1 5 SDP1 39 SD00 6 SD00 40 SD01 7 SD01 41 SD02 8 SD02 42 SD03 9 SD03 43 SD04 10 SD04 44 SD05 11 SD05 45 SD06 12 SD06 46 SD07 13 SD07 47 SDPO0 14 SDPO 48 GND 15 GND 49 DIFFSENS 16 J3 SENS 50 TERMPWR 17 TERMPWR 51 TERMPWR 18 TERMPWR 52 N C 19 N C 53 GND 20 GND 54 SATN 21 SATN 55 GND 22 GND 56 SBSY 23 SBSY 57 SACK 24 SACK 58 SRST 25 SRST 59 SMSG 26 SMSG 60 SSEL 27 SSEL 61 SCD 28 SCD 62 SREQ 29 SREQ 63 SIO 30 SIO 64 SD08 31 SD08 65 SD09 32 SD09 66 SD10 33 SD10 67 SD11 34 SD11 68 Note When operated in the SE mode all signals with the suffix are clamped to ground Operational Environment A 9 A 2 3 On Board LED On board LEDs are used to indicate the status of the SCSI bus The SCSI Activity LED lights when the SCSI bus is transferring information A 2 4 The SCSI Busy LED A 10 The SCSI Activity LED interface on the SYM8953U is a four wire arrangement that allows the user to connect a LED harness to the board The buffered GPIOO_FETCH line maximum output low vo
32. IPTS and LVD Link are trademarks of LSI Logic Corporation All other brand and product names may be trademarks of their respective companies HH lii Chapter 1 Chapter 2 Chapter 3 Contents Using the SYM8953U Host Adapter 1 4 General Description 1 2 Features 1 2 1 PCI Interface 1 2 2 SCSI Interface 1 2 3 Board Characteristics 1 3 Interface Descriptions 1 3 1 The PCI Interface 1 3 2 The SCSI Interface 1 3 3 Ultra2 SCSI Technology 1 3 4 LVD Link Technology 1 3 5 On Board LED Installing the SYM8953U Host Adapter 2 1 Quick Installation Procedure 2 2 Detailed Installation Procedure 2 2 1 Before You Start 2 2 2 Inserting the Host Adapter 2s Connecting the SCSI Peripherals 2 2 4 Making Internal SCSI Bus Connections 2 25 Making External SCSI Bus Connections 2 2 6 SCSI Bus Termination 2 2 7 Setting SCSI IDs 2 3 Completing the Installation Configuring the SYM8953U Host Adapter 3 4 Overview of the SCSI BIOS Configuration Utility 3 1 1 Starting the Configuration Utility 3 1 2 Exiting the SCSI BIOS Configuration Utility Contents 1 1 1 2 is 1 3 1 3 1 4 1 4 1 5 1 5 1 6 2 1 2 3 2 4 2 7 2 10 2 15 2 18 mee 2 24 3 1 3 2 Appendix A Appendix B Figures vi 3 2 The Symbios SCSI BIOS Configuration Utility Menus 3 2 1 3 2 2 3 2 3 3 2 4 3 2 5 3 2 6 3 2 7 Using the Menus Main Menu Adapter Properties Menu Device Properties Menu Boot Adapter List Menu Global Properties Menu Exit
33. Menu Technical Specifications Physical Environment A 1 A 2 A 1 1 A 1 2 A 1 3 A 1 4 A 1 5 Physical Characteristics Electrical Characteristics Thermal Atmospheric Characteristics Electromagnetic Compliance Safety Characteristics Operational Environment A 2 1 A 2 2 A 2 3 A 2 4 The PCI Interface The SCSI Interface On Board LED The SCSI Busy LED Glossary of Terms and Abbreviations Index Customer Feedback 2 1 mud 2 3 2 4 25 2 6 Hardware Connections for the SYM8953U Host Adapter Inserting the Host Adapter SCSI Cables Internal SCSI Ribbon Cable to Host Adapter Connection Internal SCSI Ribbon Cable to Internal SCSI Device Connection Connecting Additional Internal SCSI Devices Contents 3 3 3 3 3 4 3 6 3 10 3 15 3 18 3 20 A 1 A 1 A 2 A 3 A 3 A 3 A 3 A 4 A 7 A 10 A 10 2 9 2 6 2 9 2 10 2 11 2 12 Tables du 2 8 2 9 210 2 11 2 12 2 13 2 14 3 1 3 2 3 3 3 4 3 5 3 6 3 7 A 1 2 1 2 2 2 3 3 1 3 2 3 3 3 4 3 5 3 6 A 1 A 2 A 3 A 4 A 5 A 6 Multiple Internal SCSI Devices Chained Together SCSI LED Connector External Cable to Host Adapter External SCSI Device Cable Multiple External SCSI Devices Chained Together Internal SCSI Device Termination External SCSI Device Termination Internal and External SCSI Device Termination Main Menu Adapter Properties Menu Device Properties Menu Left Half Device Properties Menu Right Half Boot A
34. OS Configuration Utility to configure adapter and device settings e Appendix A Technical Specifications describes the physical and operational environments of the SYM8953U Host Adapter Board e Appendix B Glossary of Terms and Abbreviations provides definitions of various terminology that is referenced throughout this user s guide Preface ix Related Publications Symbios PCI SCSI Device Management System SDMS 4 0 User s Guide LSI Logic Corporation Order Number S14007 Symbios SYM53C895A PCI to Ultra2 SCSI Controller Technical Manual LSI Logic Corporation Order Number S14028 X Preface Chapter 1 Using the SYM8953U Host Adapter This chapter describes the SYM8953U Host Adapter interface to PCI computer systems and includes these topics e Section 1 1 General Description page 1 1 e Section 1 2 Features page 1 2 e Section 1 3 Interface Descriptions page 1 3 1 1 General Description The LSI Logic Corporation Symbios SYM8953U PCI to Ultra2 SCSI Host Adapter board provides an Ultra2 SCSI interface to PCI computer systems It is referred to as the SYM8953U throughout this guide Installing this adapter in your PCI system allows connection of up to 15 SCSI devices The SYM8953U board is a 16 bit Low Voltage Differential LVD Single Ended SE SCSI solution for your computer This board also supports legacy Fast SCSI and Ultra SCSI devices and the newest LVD Ultra2 SCSI devices It is also backwards c
35. Server Configuration Yes No Indicates whether an adapter has one or more devices attached that are shared with one or more other adapters and therefore the Symbios SCSI BIOS should avoid SCSI bus resets as much as possible This option allows the user to enable an adapter to join a cluster of adapters without doing any SCSI bus resets This is a requirement for Microsoft Cluster Server The default value is No with an alternate option of Yes Termination Control Configuration Auto Off If available the field indicates whether an adapter has automatic termination control Auto means that the adapter automatically determines whether it should enable or disable its termination Auto is the default state unless termination is done manually in which case the configuration is Off lt Restore Defaults gt Executable The Symbios SCSI BIOS Configuration Utility Menus Press Enter to obtain default settings 3 9 3 2 4 Device Properties Menu 3 10 The Device Properties Menu allows you to view and update individual device settings for an adapter Changing a setting for the host device for example SCSI ID 7 changes the setting for all devices The number of fields displayed requires the menu to scroll left right in order to display the information When accessing this menu online use the Home End keys to scroll to columns currently not displayed The scroll indicator on the bottom of the menu show
36. Symbios SYM8953U PCI to Ultra2 SCSI Host Adapter User s Guide December 1999 Version 1 0 LSIIEUQ ELM Order Number 14036 Fe CE Electromagnetic Compatibility Notices This device complies with Part 15 of the FCC Rules Operation is subject to the following two conditions 1 This device may not cause harmful interference and 2 This device must accept any interference received including interference that may cause undesired operation This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures 3 Reorient or relocate the receiving antenna Increase the separation between the equipment and the receiver Connect the equipment into an outlet on a circuit different from that to which the receiver is connected Co
37. al SCSI ribbon cable with the required number of connectors attached along its length and proceed to the next step If you have only one internal device proceed to page 2 14 Step 3 Plug the cable into each additional device as needed An example of this type of chained connection is shown in Figure 2 7 Make sure to match pin 1 on all connections Figure 2 6 Connecting Additional Internal SCSI Devices VANS Y 2 12 Installing the SYM8953U Host Adapter Figure 2 7 Multiple Internal SCSI Devices Chained Together X G LN 3 4 N y AA 4 Detailed Installation Procedure 2 13 2 14 Most PC cabinets are designed with a front panel LED Step 4 Connect the LED cable to connector J4 on the host adapter as shown in Figure 2 8 When properly connected the front panel LED lights when there is activity on the SCSI bus Connector J4 is not keyed The orientation of the LED cable should not matter as long as all four pins are connected If the LED does not light during SCSI bus activity from this host adapter you may have to rotate the LED cable connector 180 on J4 Figure 2 8 SCSI LED Connector LED Connector J4 MM Some LED cables have only two wires In this case place the connector on one end or the other of J4 If the LED does not light when there is SCSI activity put the connector on the other half of J4 Installing the SYM8953U Host Adapter 2 2 5 Making External SCSI Bus Connect
38. ause during the boot for user acknowledgement The pause occurs after displaying an alert message To continue after displaying a message specify No To wait for any key after displaying a message specify Yes Boot Information Display Mode Configuration Terse Verbose Specifies how much BIOS information displays during boot To display minimum information specify Terse mode To display detailed information specify Verbose mode Video Mode Configuration Color Monochrome Specifies the default video mode for the SCSI BIOS Configuration Utility The monochrome setting enhances readability on a monochrome monitor Restore Defaults gt Executable Press Enter to obtain default settings The Symbios SCSI BIOS Configuration Utility Menus 3 19 3 2 7 Exit Menu The Exit menu for the Configuration Utilities is used for all five of the menus listed above However the available functionality is different for the Main Menu and the four subordinate menus Figure 3 7 provides and example of the Exit menu Figure 3 7 Exit Menu Symbios PCI SCSI Configuration Utility Version PCI 4 15 00 Boot property changes have been mad Cancel exit Exit the Configuration Utility Save changes and then exit this menu Discard changes and exit this menu If you are exiting Adapter Properties Device Properties Boot Adapter List or Global Properties the Exit menu gives you the following opti
39. creases boot time by disabling inquiry of unused SCSI identifiers Set this option to No if there is a device that you do not want to be available to the system Also on a bus with only a few devices attached the user can speed up boot time by changing this setting to No for all unused SCSI IDs Scan LUNs gt 0 Configuration Indicates whether to scan for LUNs greater than zero for Yes No a device LUN 0 is always queried This option should be used if a multi LUN device responds to unoccupied LUNs or if it is desired to reduce the visibility of a multi LUN device to LUN 0 only Set this option to No if you have problems with a device that responds to all LUNs whether they are occupied or not Also if a SCSI device with multiple LUNs exists on your system but you do not want all of those LUNs to be available to the system then set this option to No This will limit the scan to LUN 0 The Symbios SCSI BIOS Configuration Utility Menus 3 13 Table 3 4 Disconnect Field Type Value Configuration On Off Device Properties Fields and Descriptions Cont Description Indicates whether to allow a device to disconnect during SCSI operations Some usually newer devices run faster with disconnect enabled while some usually older devices run faster with disconnect disabled SCSI Time out Executable 0 9999 Indicates the maximum allowable time for completion of a SCSI operation in seconds Since
40. dapter Board Kit for the SYM8953U host adapter Table 2 1 SCSI Bus Widths and Speeds SCSI Bus Speed SCSI Bus Maximum Data Rate STA Terms Width Bits Mbytes s SCSI 1 8 5 Fast SCSI 8 10 Fast Wide SCSI 16 20 Ultra SCSI 8 20 Wide Ultra SCSI 16 40 Ultra2 SCSI 8 40 Wide Ultra2 SCSI 16 80 Note Absence of the word Wide means an 8 bit bus width It is acceptable to use the word Narrow to avoid ambiguity You can connect up to eight SCSI Fast SCSI and Ultra SCSI devices on a SE Ultra SCSI bus only if they are evenly spaced on a 1 5 meter Ultra SCSI cable 0 19 m between devices Detailed Installation Procedure 2 7 2 8 You can connect up to four devices if they are evenly spaced on a 3 meter Ultra SCSI cable 0 75 m between devices Your SE SCSI bus should not exceed 3 meters total internal and external cable lengths even with fewer than four devices For LVD applications you can connect up to 16 devices including the host adapter if they are evenly spaced on a 12 meter Ultra SCSI cable 0 19 m minimum between devices Table 2 2 SCSI Bus Lengths Maximum Bus Length Meters Differential SCSI 1 Maximum of Devices Fast SCSI Fast Wide SCSI Ultra SCSI Ultra SCSI Wide Ultra SCSI Wide Ultra SCSI Wide Ultra SCSI Ultra2 SCSI Wide Ultra2 SCSI 1 This parameter may be exceeded in point to point and engineered
41. dapter List Menu Global Properties Menu Exit Menu SYM8953U Mechanical Drawing SCSI Bus Widths and Speeds SCSI Bus Lengths SCSI ID Record Configuration Commands Main Menu Fields and Descriptions Adapter Properties Fields and Descriptions Device Properties Fields and Descriptions Boot Adapter List Fields and Descriptions Global Properties Fields and Descriptions Maximum Power Requirements PCI Connector J1 Front PCI Connector J1 Back Internal SCSI Connector J2 External SCSI Connector J3 LED Connector J4 Contents 2 13 2 14 2 15 2 16 ale 2 19 2 20 2 21 3 5 d 3 11 3 12 3 16 3 18 3 20 A 2 A 9 A 10 vii viii Contents Audience Organization Preface This book is the primary reference and user s guide for the LSI Logic Symbios SYM8953U PCI to Ultra2 SCSI Host Adapter It contains a complete functional description for the SYM8953U as well as complete physical and electrical specifications This document assumes that you have some familiarity with SCSI protocol and related support devices and will benefit persons installing and using the SYM8953U Host Adapter Board e Chapter 1 Using the SYM8953U Host Adapter defines the interfaces and characteristics of the SYM8953U PCI to Ultra2 SCSI Host Adapter Board e Chapter 2 Installing the SYM8953U Host Adapter provides both quick and detailed installation instructions e Chapter 3 Configuring the SYM8953U Host Adapter describes the SCSI BI
42. dress A way to keep track of multiple commands that allow for increased throughput on the SCSI bus Random Access Memory The computer s primary working memory in which program instructions and data are stored and are accessible to the CPU Information can be written to and read from RAM The contents of RAM are lost when the computer is turned off LSI Logic SCSI chips contain a RISC Reduced Instruction Set Computer processor programmed through microcode scripts Read Only Memory Memory from which information can be read but not changed The contents of ROM are not erased when the computer is turned off SCSI Configured AutoMatically A method to automatically allocate SCSI IDs using software when SCAM compliant SCSI devices are attached Small Computer System Interface A specification for a high performance peripheral bus and command set The original standard is referred to as SCSI 1 The current SCSI specification which adds features to the original SCSI 1 standard The SCSI specification which adds features to the SCSI 2 standard A host adapter and one or more SCSI peripherals connected by cables in a linear chain configuration The host adapter may exist anywhere on the chain allowing connection of both internal and external SCSI devices A system may have more than one SCSI bus by using multiple host adapters B 5 SCSI Device SCSI ID SCSI SCRIPTS SCRIPTS Processor SDMS Single Ended SCSI STA
43. f data transmitted over the SCSI bus The parity bit in the transfer is used to make the sum of all the 1 bits either odd or even for odd or even parity If the sum is not correct the information may be retransmitted or an error message may appear The electrical connection required at each end of the SCSI bus composed of a set of resistors It improves the integrity of bus signals Peripheral Component Interconnect A local bus specification that allows connection of peripherals directly to computer memory It bypasses the slower ISA and EISA buses A piece of hardware such as a video monitor disk drive printer or CD ROM used with a computer and under the computer s control SCSI peripherals are controlled through a SCSI host adapter The alignment of pin 1 on a SCSI cable connector and the pin 1 position on the SCSI connector into which it is inserted External SCSI cables are always keyed to insure proper alignment but internal SCSI ribbon cables sometimes are not keyed Glossary of Terms and Abbreviations PIO Port Address Port Number Queue Tags RAM RISC Core ROM SCAM SCSI SCSI 2 SCSI 3 SCSI Bus Programmed Input Output A way the CPU can transfer data to and from memory using the computer s I O ports PIO is usually faster than DMA but requires CPU time Also Port Number The address through which commands are sent to a host adapter board This address is assigned by the PCI bus See Port Ad
44. hat we may contact you directly for clarification or additional information Name Date Telephone Fax Title Department Mail Stop Company Name Street City State Zip Customer Feedback U S Distributors by State A E Avnet Electronics http www hh avnet com B M Bell Microproducts Inc for HAB s http Awww bellmicro com l E Insight Electronics http www insight electronics com W E Wyle Electronics http www wyle com Alabama Daphne l E Tel Huntsville A E Tel 256 837 8700 LE Tel 256 830 1222 W E Tel 800 964 9953 334 626 6190 Alaska A E Tel 800 332 8638 Arkansas W E Tel 972 235 9953 Arizona Phoenix A E Tel 480 736 7000 B M Tel 602 267 9551 W E Tel 800 528 4040 Tempe l E Tel Tucson A E Tel 480 829 1800 520 742 0515 California Agoura Hills B M Tel 818 865 0266 A E Tel 949 789 4100 B M Tel 949 470 2900 E Tel 949 727 3291 W E Tel 800 626 9953 Los Angeles A E Tel 818 594 0404 W E Tel 800 288 9953 Sacramento A E Tel 916 632 4500 W E Tel 800 627 9953 San Diego A E Tel 858 385 7500 B M Tel 858 597 3010 E Tel 800 677 6011 W E Tel 800 829 9953 San Jose A E Tel 408 435 3500 B M Tel 408 436 0881 E Tel 408 952 7000 Santa Clara W E Tel 800 866 9953 Woodland Hills A E Tel 818 594 0404 Westlake Village IE Tel 818 707 2101 Colorado Denver A E Tel 3
45. he amplitude of noise reflections and allows higher transmission frequencies Detailed information may be found in Section 1 3 4 LVD Link Technology A large circuit board that holds RAM ROM the microprocessor custom integrated circuits and other components that make a computer work It also has expansion slots for host adapters and other expansion boards B 3 Main Memory Mbyte Motherboard Multitasking Multithreading NVRAM Operating System Parity Checking Passive Termination PCI Peripheral Devices Pin 1 Orientation B 4 The part of a computer s memory which is directly accessible by the CPU usually synonymous with RAM Megabyte A measure of computer storage equal to 1024 kilobytes See Mainboard In some countries the term Motherboard is not appropriate The executing of more than one command at the same time This allows programs to operate in parallel The simultaneous accessing of data by more than one SCSI device This increases the data throughput NonVolatile Random Access Memory Actually an EEPROM Electronically Erasable Read Only Memory chip used to store configuration information See EEPROM A program that organizes the internal activities of the computer and its peripheral devices An operating system performs basic tasks such as moving data to and from devices and managing information in memory It also provides the user interface A way to verify the accuracy o
46. ies Menu Indicates whether an adapter is eligible for LSI Logic Symbios software control or is reserved for control by non Symbios software The Adapter Properties menu allows you to view and modify adapter settings and as well as the SCSI devices connected to it It also provides access to an adapter s device settings To display this menu select a device in the Adapter field on the Main Menu and press Enter After pressing Enter the following message flashes before the menu appears Initializing the adapters reading for non volatile settings and scanning for devices After a few seconds the menu appears Figure 3 2 provides an example of the Adapter Properties menu 3 6 Configuring the SYM8953U Host Adapter Figure 3 2 Adapter Properties Menu Adapter Properties SYM53C895A 0 AO Device Properties SCSI Parity Host SCSI ID Wl SCSI Bus Scan Order Low to High 0 Max Removable Media None Support CHS Mapping SCSI Plug and Play Mapping Spinup Delay Secs 2 Secondary Cluster Server Termination Control Restore Defaults gt The Symbios SCSI BIOS Configuration Utility Menus 3 7 Table 3 3 Note Table 3 3 lists the fields you can access and their descriptions If the field displays in black text it is available for changes If it displays in white text it is not available Field Type Value Adapter Properties Fields and Descriptions Descriptions Device Properties
47. ions This section provides step by step instructions about making external SCSI bus connections To connect external SCSI devices to the SYM8953U host adapter Step 1 Plug the 68 pin HD connector on one end of a shielded external SCSI cable see Figure 2 3 into the host adapter connector J3 see Figure 2 1 This connector is in the bracket attached to the back panel of your computer Figure 2 9 shows how this connection is made Figure 2 9 External Cable to Host Adapter HD Connector Detailed Installation Procedure 2 15 Step 2 Plug the 68 pin connector on the other end of the shielded external SCSI cable into the SCSI connector on your external SCSI device An example of this connection is shown in Figure 2 10 Figure 2 10 External SCSI Device Cable HD Connectors If this is the only external SCSI device on your system proceed to Section 2 2 6 SCSI Bus Termination page 2 18 for termination instructions If you have multiple SCSI devices proceed to the next page 2 16 Installing the SYM8953U Host Adapter Step 3 Chain multiple devices together with shielded external SCSI cables An example of these chained connections is shown in Figure 2 11 Figure 2 11 Multiple External SCSI Devices Chained Together HD Connectors After you have connected all of your internal and external devices proceed to Section 2 2 6 SCSI Bus Termination Detailed Installation Procedure 2
48. iption 3 13 T Termination 2 18 Termination erroneous 2 18 termination control description 3 9 Thermal Atmospheric Characteristics A 3 U Ultra SCSI 2 7 Ultra2 SCSI 1 5 V verify description 3 14 video mode description 3 19 Customer Feedback We would appreciate your feedback on this document Please copy the following page add your comments and fax it to us at the number shown If appropriate please also fax copies of any marked up pages from this document Important Please include your name phone number fax number and company address so that we may contact you directly for clarification or additional information Thank you for your help in improving the quality of our documents Readers Comments Fax your comments to LSI Logic Corporation Technical Publications M S E 198 Fax 408 433 4333 Please tell us how you rate this document Symbios SYM8953U PCI to Ultra2 SCSI User s Guide Place a check mark in the appropriate blank for each category Excellent Good Average Fair Poor Completeness of information Clarity of information Ease of finding information Technical content Usefulness of examples and illustrations Overall manual What could we do to improve this document If you found errors in this document please specify the error and page number If appropriate please fax a marked up copy of the page s Please complete the information below so t
49. it is first in the scan order With Media Installed provides removable media support regardless of the drive number assignment Configuring the SYM8953U Host Adapter Table 3 3 CHS Mapping Field Type Value Configuration SCSI Plug and Play Mapping Alternate CHS Mapping Adapter Properties Fields and Descriptions Cont Descriptions Defines how the Cylinder Head Sector CHS values are mapped onto a disk without pre existing partition information SCSI Plug and Play Mapping automatically determines the most efficient and compatible mapping Alternate CHS Mapping utilizes an alternate possibly less efficient mapping that may be required if a device is moved between adapters from different vendors Caution Neither of these options has any effect after a disk has been partitioned using the FDISK command The FDISK utility is a tool that the user can use to delete partition entries one or all of them If all partition entries are deleted it is necessary to reboot to clear memory or the old partitioning data will be reused thus nullifying the previous operation Use care to ensure that the correct disk is the target of an FDISK command Spinup Delay Seconds Configuration 1 to 15 Indicates the delay in seconds between spinups of devices attached to an adapter Staggered spinups balance the total electrical current load on the system during boot The default value is 2 seconds Secondary Cluster
50. l the SYM8953U Step 1 Ground yourself before removing this host adapter board Step 2 Remove the SYM8953U PCI to Ultra2 SCSI Host Adapter board from the packing and check that it is not damaged An example of this host adapter board is shown in Figure 2 1 A more detailed drawing is located in Figure A 1 Step 3 Switch off the computer and unplug power cords for all components in your system Step 4 Remove the cover from your computer per the instructions in the user s manual for your system to access the PCI slots Caution Ground yourself by touching a metal surface before removing the cabinet top Static charges on your body can damage electronic components Handle plug in boards by the edge do not touch board components or gold connector contacts The use of a static ground strap is recommended Step 5 Locate the slots for PCI plug in board installation Refer to the user s manual for your computer to confirm the location of the PCI slots Important The SYM8953U board requires a PCI slot that allows bus master operation Step 6 Remove the blank bracket panel on the back of the computer aligned with the PCI slot you intend to use Save the bracket screw 2 4 Installing the SYM8953U Host Adapter Figure 2 1 Hardware Connections for the SYM8953U Host Adapter dida n SCSI n Interface J2 ipa External SCSI Interf ud ace gi yin gi SYM8953U m J1 to PCI Mainboard N di S Step 7 Carefully insert
51. list press the Delete key while on the desired adapter in the Boot Adapter List Note If a new device is added after this utility loads it can only be seen in the adapter configuration section of this utility after a reboot You must exit the utility and restart it for the new device to be seen by the Configuration Utility The Symbios SCSI BIOS Configuration Utility Menus 3 15 3 16 Figure 3 5 provides an example of the Boot Adapter List Menu Figure 3 5 Boot Adapter List Menu Boot Adapter List Insert Add an adapter Delete Remove an adapter Adapter BOM Boot Curreen Next Bus Order Status Boot SYM53C895A 0 27 ORT On lt SYM53C8 96 0 1 On IOE SYM53C896 0 0 On On Hit Insert to select an adapter from this list SYM53C895A 0 98 SYM53C896 0 88 SYM53C896 0 58 gt Configuring the SYM8953U Host Adapter Table 3 5 lists the fields on this menu and their descriptions Table 3 5 Boot Adapter List Fields and Descriptions Adapter Field Type Value Information Description Indicates the specific SYM53C8XX Host Adapter PCI Bus Information Indicates the PCI Bus number range 0x00 O0xFF 0 255 decimal assigned by the system BIOS to an adapter Dev Func Information Indicates the PCI Device Function assigned by the system BIOS to an adapter An 8 bit value is mapped as follows Bit 76543210 Bits 7 3 Device range 0x00 0x1F 0 31 decimal Bits 2 0 Function
52. ltage 0 4 V and minimum output low current 16 mA is pulled low to complete the circuit when a harness with a LED is attached The SCSI Busy LED connector is J4 Table A 6 LED Connector J4 Signal Name Technical Specifications Active Termination Address Asynchronous Data Transfer BIOS Bit Bus Bus Mastering Byte CISPR Appendix B Glossary of Terms and Abbreviations The electrical connection required at each end of the SCSI bus composed of active voltage regulation and a set of termination resistors Ultra and Ultra2 SCSI require active termination A specific location in memory designated either numerically or by a symbolic name One of the ways data is transferred over the SCSI bus It is slower than synchronous data transfer Basic Input Output System Software that provides basic read write capability Usually kept as firmware ROM based The system BIOS on the mainboard of a computer is used to boot and control the system The SCSI BIOS on your host adapter acts as an extension of the system BIOS A binary digit The smallest unit of information a computer uses The value of a bit 0 or 1 represents a two way choice such as on or off true or false and so on A collection of unbroken signal lines across which information is transmitted from one part of a computer system to another Connections to the bus are made using taps on the lines A high performance way to transfer data The
53. m Moves the cursor to the start end of a scrollable field Enter Execute Item Executes options with values in lt gt brackets Press Enter to execute the field s associated function F2 Menu Sets cursor context to the Optional Menu area Select a menu item and press Enter This option is only available from the Main and Adapter Properties menus 3 2 2 Main Menu 3 4 When you start the Symbios SCSI BIOS Configuration Utility the Main Menu shown in Figure 3 1 appears This menu displays a list of installed Symbios PCI to SCSI host adapters information about each of them and a series of other menu options This list displays up to four boards At the opening menu the cursor is on one of the listed adapters If you need to change the configuration of an adapter move to the board you want to change with the arrow keys and press Enter This calls the menu described in detail in Section 3 2 3 Adapter Properties Menu From this menu you can view and or change the current settings for that adapter and the SCSI devices attached to it You can select an adapter only if Current Status is On Changes are possible since NVRAM is present on this host adapter Configuring the SYM8953U Host Adapter Figure 3 1 is an example of the Configuration Utilities Main Menu Table 3 2 lists the Main Menu fields and their descriptions Figure 3 1 Main Menu SYM53C8XX Host Bus Adapters Adapter PCI Dev Port LSI Logic
54. n Format Verify lt Defaults gt 10 On Format Verify lt Defaults gt SYM53C895A 10 On Format Verify lt Defaults gt 10 gt On Format Verify lt Defaults gt 10 gt On Format Verify lt Defaults gt 10 gt On Format Verify lt Defaults gt 10 gt On Format Verify lt Defaults gt 10 gt On Format Verify lt Defaults gt 10 gt On Format Verify lt Defaults gt 10 gt On Format Verify lt Defaults gt 10 gt On Format Verify lt Defaults gt 3 12 Configuring the SYM8953U Host Adapter Table 3 4 lists the fields and their descriptions Table 3 4 Device Properties Fields and Descriptions Field Type Description Value SCSI ID Information Device s SCSI Identifier Device Identifier Information Indicates the ASCII device identifier string as extracted from the device s inquiry data Sync Rate Configuration Indicates the maximum synchronous data transfer rate in 0 5 10 20 40 mega transfers per second Mega Xfers Data Width Data Width Synch per second 8 bits 16 bits Period ns 0 Asynch 0 Asynch 0 Asynch 0 Asynch 5 5 10 200 10 10 20 100 20 20 40 50 40 40 80 25 Data Width Configuration Maximum data width in bits 8 16 Scan ID Configuration Indicates whether to scan for this SCSI identifier at boot Yes No time Utilizing this setting allows you to ignore a device This de
55. nsult the dealer or an experienced radio TV technician for help Shielded cables for SCSI connection external to the cabinet are used in the compliance testing of this Product LSI Logic is not responsible for any radio or television interference caused by unauthorized modification of this equipment or the substitution or attachment of connecting cables and equipment other than those specified by LSI Logic The correction of interferences caused by such unauthorized modification substitution or attachment will be the responsibility of the user The LSI Logic Symbios SYM8953U is tested to comply with FCC standards for home or office use This Class B digital apparatus meets all requirements of the Canadian Interference Causing Equipment Regulations Cet appareil num rique de la classe B respecte toutes les exigences du R glement sur le mat riel brouilleur du Canada CORB PRUBRESRRMSAEMM BMS VCCI ORE KEOS VDA Bil CT CORB RE CHATS CE SAWCUTIETM Lo amp BSU4erVWUZaLSBORERUC MASNSe SBE HSRC TCEMHOVET ARRASTE TEL BU RUE UC FU This is a Class B product based on the standard of the Voluntary Control Council for Interference from Information Technology Equipment VCCI If this is used near a radio or television receiver in a domestic environment it may cause radio interference Install and use the equipment according to the instruction manual LSI Logic Corporation North American Headquarters Milpitas CA 408 433 8000 This d
56. ocument contains proprietary information of LSI Logic Corporation The information contained herein is not to be used by or disclosed to third parties without the express written permission of an officer of LSI Logic Corporation LSI Logic products are not intended for use in life support appliances devices or systems Use of any LSI Logic product in such applications without written consent of the appropriate LSI Logic officer is prohibited Document DB15 000133 00 First Edition December 1999 This document describes Version 1 0 of the LSI Logic Corporation SYM8953U PCI to Ultra2 SCSI Host Adapter and will remain the official reference source for all revisions releases of this product until rescinded by an update To receive product literature visit us at http www Isilogic com LSI Logic Corporation reserves the right to make changes to any products herein at any time without notice LSI Logic does not assume any responsibility or liability arising out of the application or use of any product described herein except as expressly agreed to in writing by LSI Logic nor does the purchase or use of a product from LSI Logic convey a license under any patent rights copyrights trademark rights or any other of the intellectual property rights of LSI Logic or third parties Copyright 1999 by LSI Logic Corporation All rights reserved TRADEMARK ACKNOWLEDGMENT The LSI Logic logo design and Symbios are registered trademarks and SDMS SCR
57. of the Symbios SCSI BIOS Configuration Utility These messages may appear during the boot process e Adapter removed from boot order parameters will be updated accordingly appears when an adapter is removed from the system or relocated behind a PCI bridge e Configuration data invalid saving default configuration appears if none of the information in the NVRAM is valid e Found SCSI Controller not in following Boot Order List to Add Press Ctrl C to start Symbios Configuration Configuring the SYM8953U Host Adapter Utility appears when less than four adapters are in the boot order and more adapters exist than are shown NonVolatile Random Access Memory NVRAM is available on the SYM8953U Host Adapter Changes can be made and stored using this menu driven utility Important This utility is a powerful tool If while using it you somehow disable all of your controllers you can recover Pressing Ctrl E after memory initialization during a reboot allows you to re enable and reconfigure Note Not all devices detected by the Configuration Utility can be controlled by the BIOS Devices such as tape drives and scanners require that a device driver specific to that peripheral be loaded This device driver is provided by the device manufacturer 3 1 2 Exiting the SCSI BIOS Configuration Utility Since most changes only take effect after the system reboots you must exit properly from the Configuration Utility
58. ompatible with existing wide SCSI applications for the SYM8251S and SYM8751SP E host adapters Symbios SCSI Device Management System SDMS software operates the board SCSI software provided by other vendors that works with the SYM53C895A chip can also be used BIOS support for this adapter is incorporated on the board in a Flash memory device The SYM8953U host adapter has a serial EEPROM device for storing the users SCSI bus configuration The SYM53C895A chip also contains a SCSI SCRIPTS processor that permits both DMA and SCSI commands to be fetched from host memory or internal SCRIPTS RAM Algorithms written in SCSI SCRIPTS control Symbios SYM8953U PCI to Ultra2 SCSI Host Adapter 1 1 the actions of the SCSI and DMA cores The SCRIPTS processor executes complex SCSI bus sequences independently of the host CPU For more information on the SCSI SCRIPTS Instruction Set used to write these algorithms refer to the Symbios SYM53C895A PCI to Ultra2 SCSI Controller Technical Manual This user s guide along with the Symbios PCI SCSI Device Management System SDMS 4 0 User s Guide contains a complete library of product information and installation instructions With this information the full benefits of your SYM8953U PCI to Ultra2 SCSI Host Adapter are available to you 1 2 Features This section provides a high level overview of the PCI Interface the SCSI Interface and Board Characteristics for the SYM8953U Host Adapter board
59. onics Corporation Tel 81 3 3260 1411 Fax 81 3 3260 7100 Technical Center Tel 81 471 43 8200 Yokohama City Macnica Corporation Tel 81 45 939 6140 Fax 81 45 939 6141 The Netherlands Eindhoven Acal Nederland b v Tel 31 40 2 502602 Fax 31 40 2 510255 Switzerland Brugg LSI Logic Sulzer AG Tel 41 32 3743232 Fax 41 32 3743233 Taiwan Taipei Avnet Mercuries Corporation Ltd Tel 886 2 2516 7303 Fax 886 2 2505 7391 Lumax International Corporation Ltd Tel 886 2 2788 3656 Fax 886 2 2788 3568 Prospect Technology Corporation Ltd Tel 886 2 2721 9533 Fax 886 2 2773 3756 Serial Semiconductor Corporation Ltd Tel 886 2 2579 5858 Fax 886 2 2570 3123 United Kingdom Maidenhead Azzurri Technology Ltd Tel 44 1628 826826 Fax 44 1628 829730 Swindon EBV Elektronik Tel 44 1793 849933 Fax 44 1793 859555 Sales Offices with Design Resource Centers
60. ons Cancel exit This option returns you to the previous menu Save changes and This option implements any changes you made on the exit this menu previous menu and returns you to the main menu Discard changes h This option restores the default settings and returns you to and exit this menu p g y the main menu 3 20 Configuring the SYM8953U Host Adapter If you are exiting the Main Menu the exit menu gives you the following options Cancel exit This returns you to the Main Menu Exit the This option exits the configuration and returns you to the Configuration DOS prompt Utility Important You must reboot in order for the changes you have made to take effect The Symbios SCSI BIOS Configuration Utility Menus 3 21 3 22 Configuring the SYM8953U Host Adapter Appendix A Technical Specifications This section discusses the physical environment associated with the SYM8953U Host Adapter It includes a mechanical drawing of this board which is shown in Figure A 1 It also includes these topics e Section A 1 Physical Environment page A 1 e Section A 2 Operational Environment page A 3 A 1 Physical Environment This section discusses the physical electrical thermal and safety characteristics of the SYM8953U Host Adapter board Additionally this board is compliant with electromagnetic standards set by the FCC A 1 1 Physical Characteristics The dimensions of the SYM8953U Host Adapter board are 6 00 x
61. ost adapter ID using the Symbios SCSI BIOS Configuration Utility The peripheral device SCSI IDs are usually set with jumpers or with a switch on the peripheral Refer to the peripheral manufacturer s instructions and to the user s manual for your computer to determine the ID of each device and how to change it Note You must not have any duplication of SCSI IDs on a SCSI bus Step 1 Determine the SCSI ID of each device on the SCSI bus Note any duplications Step 2 Make any necessary changes to the SCSI IDs to eliminate duplicates and record the IDs for future reference Table 2 3 is provided as a place to keep this record Installing the SYM8953U Host Adapter Table 2 3 SCSI ID Record SCSI ID SCSI Device SYM8953U Host Adapter default Detailed Installation Procedure 2 238 2 3 Completing the Installation Before replacing the cover on your computer review this installation procedure check list This can save you effort later Verify Installation Procedures Done Host adapter connection in PCI bus slot secure Internal SCSI bus connections secure pin 1 continuity External SCSI bus connections secure Proper SCSI bus termination established Step 1 Step 2 Step 3 Step 4 Step 5 Step 6 Unique SCSI IDs set and recorded for each device SISIS SIS Replace the cabinet cover on your computer Plug in all power cords Switch p
62. ower on to all devices and your computer Wait for your computer to boot up To change the configuration of the host adapter see Chapter 3 Configuring the SYM8953U Host Adapter Load the software and drivers suitable to your application and system Refer to the Symbios PCI SCSI Device Management System SDMS 4 0 User s Guide or the guide for the software you plan to use 2 24 Installing the SYM8953U Host Adapter Chapter 3 Configuring the SYM8953U Host Adapter This chapter describes configuring the SYM8953U Host Adapter and includes these topics e Section 3 1 Overview of the SCSI BIOS Configuration Utility page 3 1 e Section 3 2 The Symbios SCSI BIOS Configuration Utility Menus page 3 3 3 1 Overview of the SCSI BIOS Configuration Utility The SYM8953U Host Adaptor is loaded with Symbios SCSI BIOS and Configuration Utility Version 4 15 or greater This chapter describes the process you need to follow to change configuration settings on your board The SDMS SCSI BIOS provides support for the BIOS Boot Specification BBS which allows you to choose which device to boot from by selecting the priority To use this feature the system BIOS must also be compatible with the BBS If your system supports the BBS then you will use the system BIOS setup menu to select the boot and drive order In the system BIOS setup the Boot Connection Devices menu appears with a list of available boot options Use that menu
63. r 16 bit unit of information B 7 B 8 Glossary of Terms and Abbreviations Index adapter description 3 5 adapter properties menu 3 6 alternate CHS mapping description 3 9 Board Characteristics 1 3 boot adapter list menu 3 16 boot choice description 3 14 boot information display mode description 3 19 boot order description 3 6 Bus configurations 2 18 C chained connection 2 12 2 17 CHS mapping description 3 9 Configuration Utility 3 1 Connecting the SCSI Peripherals 2 7 current status description 3 17 D data width description 3 13 Detailed Installation Procedure 2 3 device identifier description 3 13 device properties menu 3 11 to 3 12 Device Selections Menu 3 10 device function description 3 6 disconnect description 3 14 duplication of SCSI IDs 2 22 E edge connector 2 5 Electrical Characteristics A 2 Electromagnetic Compliance A 3 Erroneous Termination 2 18 External SCSI Bus Connections 2 15 External SCSI Connector J3 A 9 External SCSI Device 2 16 External SCSI Device Termination 2 20 F FDISK MBR command using 3 9 Features 1 2 format description 3 14 front panel LED 2 14 G global properties menu 3 18 3 20 GPIOO FETCH line A 10 H Hardware Connections 2 5 host SCSI ID description 3 8 Inserting the Host Adapter 2 4 2 6 Installation Procedure 2 3 installation procedure check list 2 24 Internal SCSI Bus Connections 2 10 Internal SCSI Device Connection 2 11 Internal
64. r securing the installed board Carefully insert the edge connector J1 of the host adapter into the PCI slot Make sure the edge connector is properly aligned before pressing the board into place See Figure 2 2 The bracket around connector J3 see Figure 2 1 should fit where the blank bracket panel was removed Note X You may notice that the components on a PCI host adapter Step 8 Step 9 Step 10 Step 11 Step 12 Step 13 face the opposite way from non PCl adapter boards you have in your system This orientation is correct The board is keyed and will only go in one way Secure the bracket with the bracket screw before making the internal and external SCSI bus connections If you are connecting any internal SCSI devices plug a 68 pin connector on the end of the internal SCSI ribbon cable into connector J2 see Figure 2 1 Be sure you match pin 1 on both connectors Connect the LED cable to J4 if desired This is designed to drive an off board system LED and indicates activity on the SCSI bus The off board LED will operate at the same time as the on board SCSI Activity LED Replace the cabinet cover as described in the user s manual for your computer Make all external SCSI bus connections Refer to the Symbios PCI SCSI Device Management System SDMS 4 0 User s Guide or the guide for the software you will use to load the driver software for your particular operating system Installing the SYM8953U
65. s where the cursor is relative to the first and last columns The example for the Device Properties Menu is split Figure 3 3 and Figure 3 4 due to the width of its multiple fields columns Configuring the SYM8953U Host Adapter Figure 3 3 Device Properties Menu Left Half Device Properties SYM53C895A 0 AO SESI Device Identifier Sync Data Scan Scan Disconnect Rate Width BIRD LUNs gt 0 Quantum Viking 4 5 20 16 Yes Yes Quantum Viking 4 5 20 16 Yes Yes Quantum Viking 4 5 20 16 Yes Yes Quantum Viking 4 20 16 Yes Yes Quantum Viking 4 20 16 Yes Yes Quantum Viking 4 20 16 Yes Yes 20 16 Yes Yes SYM53C895A 20 16 Yes Yes 20 16 Yes Yes 20 16 Yes Yes 20 16 Yes Yes 20 16 Yes Yes 20 16 Yes Yes 20 16 Yes Yes 20 16 Yes Yes 20 16 Yes Yes The Symbios SCSI BIOS Configuration Utility Menus 3 11 Figure 3 4 Device Properties Menu Right Half Device Properties SYM53C895A 0 AO SCSI Device Identifier SCSI Queue Boot Format Verify Restore Timeout Tags Choice Defaults Quantum Viking 4 10 gt On No Format Verify lt Defaults gt Quantum Viking 4 10 gt On Format Verify lt Defaults gt Quantum Viking 4 10 gt On Format Verify lt Defaults gt Quantum Viking 4 10 gt On Format Verify lt Defaults gt Quantum Viking 4 10 gt On Format Verify lt Defaults gt Quantum Viking 4 10 gt O
66. te Continued New York Hauppauge l E Tel 516 761 0960 Long Island A E Tel 516 434 7400 W E Tel 800 861 9953 Rochester A E Tel 716 475 9130 E Tel 716 242 7790 W E Tel 800 319 9953 Smithtown B M Tel 800 543 2008 Syracuse A E Tel 315 449 4927 North Carolina Raleigh A E Tel 919 859 9159 l E Tel 919 873 9922 W E Tel 800 560 9953 North Dakota A E Tel 800 829 0116 W E Tel 612 853 2280 Ohio Cleveland A E Tel 216 498 1100 W E Tel 800 763 9953 Dayton A E Tel 614 888 3313 E Tel 937 253 7501 W E Tel 800 575 9953 Strongsville B M Tel 440 238 0404 Valley View E Tel 216 520 4333 Oklahoma W E Tet Tulsa A E Tel 918 459 6000 l E Tel 918 665 4664 972 235 9953 Oregon Beavertonr B M Tel 503 524 0787 l E Tel 503 644 3300 Portland A E Tel 503 526 6200 W E Tel 800 879 9953 Pennsylvania Mercer E Tel 412 662 2707 Pittsburgh A E Tel 412 281 4150 W E Tel 440 248 9996 Philadelphia A E Tel 800 526 4812 B M Tel 215 741 4080 W E Tel 800 871 9953 Rhode Island A E 800 272 9255 W E Tel 781 271 9953 South Carolina A E Tel 919 872 0712 W E Tel 919 469 1502 South Dakota A E Tel 800 829 0116 W E Tel 612 853 2280 Tennessee W E Tel 256 830 1119 East West A E Tel 800 241 8182 Tel 800 633 2918 Texas Austin A E Tel 512 219 3700 B M Tel 512 258 0725 E Tel 512 719 3090 W E Tel 800 365 9953 Dallas
67. time outs provide a safeguard that allows the system to recover should an operation fail it is recommended that a value greater than zero be used A value of zero allows unlimited time for an operation to complete and could result in the system hanging waiting forever should an operation fail Note This field is executable and must be selected with the Enter key You also input the new value with the number keys from the keyboard not the number pad Queue Tags Configuration On Off This field indicates whether to allow the use of queue tags for a device Currently the BIOS does not use queue tags This item specifies queue tag control to higher level device drivers Boot Choice Configuration Yes No Indicates whether this device can be selected as the boot device This option is only applicable to devices attached to adapter number zero in the boot list on non BBS systems It provides primitive BBS flexibility to non BBS systems Executable Allows low level formatting on a disk drive if enabled Low level formatting will completely and irreversibly erase all data on the drive To low level format a device select the device from the menu and use the arrow keys to move the cursor to the Format column Press Enter Note Formatting will default the drive to a 512 byte sector size even if the drive had previously been formatted to another sector size Executable Allows verification of all sectors on a
68. to select the device and rearrange the order Then exit to continue the boot process In most cases you should not need to change the default configuration of the host adapter You may decide to alter these default values if there is a conflict between device settings or if you need to optimize system performance Symbios SYM8953U PCI to Ultra2 SCSI Host Adapter 3 1 There are four sets of configurations you can change You make changes on subordinate menus called from the Main Menu which is opened when you start the Configuration Menu The subordinate menus are listed below e Adapter properties e Device properties e Adapter boot list e Global properties All these properties are controlled by menus you access through the configuration utility Main Menu The Main Menu also gives an overview of some properties of installed Symbios host adapter boards 3 1 1 Starting the Configuration Utility 3 2 You can see the version number of your Symbios SCSI BIOS in a banner displayed on your computer monitor during boot If the utility is available the following message also appears on your monitor Press Ctrl C to start Symbios Configuration Utility This message remains on your screen for about five seconds giving you time to start the utility If you decide to press Ctrl C the message changes to Please wait invoking Symbios Configuration Utility After a brief pause your computer monitor displays the Main Menu
69. ty Characteristics The bare board meets or exceeds the requirements of UL flammability rating 94 VO The bare board is also marked with the suppliers name or trademark type and UL flammability rating Since this board is installed in a PCI bus slot all voltages are below the SELV 42 4 V limit A 2 Operational Environment The SYM8953U host adapter is designed for use in PCI computer systems SDMS operates the board but the design of the board does not prevent the use of other software Operational Environment A 3 A 2 4 The PCI Interface A 4 The PCI interface operates as a 32 bit DMA bus master The connection is made through edge connector J1 which provides connections on both the front and back of the board The signal definitions and pin numbers conform to the PCI Local Bus Specification Revision 2 2 standard Table A 2 and Table A 3 show the signal assignments Note The 3 3 V pins are tied together and decoupled with high frequency bypass capacitors to ground No current from these 3 3 V pins is used on the board The board derives power from the 5 V pins directly and through a 3 3 V voltage regulator The PCI Vyo pins are used to differentiate between a 5 V or a 3 3 V PCI environment Technical Specifications Table A 2 Signal Name 12V PCI Connector J1 Front Signal Name GND Signal Name SERR TCK AD27 3 3V GND AD25 C BE1 TDO 3 3V AD14 45V C
70. user with prior host adapter installation and SCSI bus setup experience this section may sufficiently describe the procedure for you If you prefer a more detailed guidance for installing the SYM8953U host adapter proceed to Section 2 2 Detailed Installation Procedure For safe and proper installation check the user s manual supplied with your computer and perform the following steps Step 1 Ground yourself before removing this host adapter board Step 2 Remove the SYM8953U PCI to Ultra2 SCSI Host Adapter board from the packing and check that it is not damaged An example of this host adapter board is shown in Figure 2 1 A more detailed drawing is located in Figure A 1 Step 3 Switch off and unplug the system Step 4 Remove the cabinet cover on your computer to access the PCI slots Caution Ground yourself by touching a metal surface before handling boards Static charges on your body can damage Symbios SYM8953U PCI to Ultra2 SCSI Host Adapter 2 1 2 2 Step 5 Step 6 Step 7 electronic components Handle plug in boards by the edge do not touch board components or gold connector contacts The use of a static ground strap is recommended Locate the slots for installing a PCI plug in board The SYM8953U requires a PCI slot that allows bus master operation See Figure 2 2 Remove the blank bracket panel on the back of the computer aligned with the PCI slot you intend to use Save the bracket screw fo
71. versal 32 bit card edge connector HD 68 pin external connector HD 68 pin internal connector A mechanical drawing showing board dimensions and component layout is located in Appendix A Technical Specifications 1 3 Interface Descriptions This section provides a more detailed explanation about the PCI Interface the SCSI Interface Ultra2 SCSI Technology and LVD Link Technology Interface Descriptions 1 3 1 3 1 The PCI Interface PCI a high speed standard local bus interfaces I O components to the processor and memory subsystems in equipment ranging from PCs to servers The PCI functionality for the SYM8953U is contained within the Symbios SYM53C895A PCI to Ultra2 Controller with LVD Link Universal Transceivers The SYM53C895A connects directly to the PCI bus and generates signal timing and bus protocol in compliance with the PCI Specification Revision 2 2 The PCI interface operates as a 32 bit DMA bus master capable of 64 bit addressing The connection is made through edge connector J1 shown in Figure 2 1 The signal definitions and pin numbers conform to the PCI Local Bus Specification Revision 2 2 standard The SYM8953U host adapter conforms to the PCI universal signaling environment for a 5 V or 3 3 V PCI bus 1 3 2 The SCSI Interface 1 4 The SCSI functionality for the SYM8953U is contained within the SYM53C895A This chip is a PCI to Ultra2 SCSI Controller with LVD Link Universal Transceivers It connects directly
72. vices You must consider the total length of the bus cables and the number of devices on the SCSI bus when setting up your system Make sure that your SCSI cables are rated for standard SCSI Fast Ultra and Ultra2 environments Chapter 2 Installing the SYM8953U Host Adapter has a detailed explanation of SCSI bus connections 1 3 4 LVD Link Technology To support greater device connectivity and a longer SCSI cable the SYM8953U features LVD Link technology the LSI Logic implementation of Universal LVD SCSI LVD Link transceivers provide the inherent reliability of differential SCSI and a long term migration path to faster SCSI transfer rates The LVD Link transceivers reduce the power needed to drive the SCSI bus so that the I O drivers can be integrated directly into the chip LVD Link technology lowers the amplitude of noise reflections and allows higher transmission frequencies The LVD Link transceivers operate in LVD and SE modes They also allow the chip to detect a High Voltage Differential HVD signal when the chip is mistakenly connected to external HVD transceivers When connected the SYM53C895A chip automatically detects signal type based on the voltage detected It automatically switches to the SE or LVD mode as appropriate All bus devices must be LVD or SE If a HVD device is detected the board puts the SCSI bus in the high impedance state and shuts down 1 3 4 1 Benefits of LVD Link LVD Link supported by the SYM

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