DTC3180/3280A SCSI HOST ADAPTER

DTC3180/3280A SCSI HOST ADAPTER
MAY 25,1990,REVISION A
SWITCH SETTINGS & SETUP
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JUMPER &                                                            INSTALLED
SWITCH #    FUNTION                        DEFAULT                       Y/N
                                                                  OPEN/CLOSED
-----------------------------------------------------------------------------
W1 (123)    MEMORY CONFIGURATION JUMPER    2K STATIC RAM          2-3

W2 (123)    FLOPPY PORT ADDRESS JUMPER     PRIMARY PORT ADDRESS   1-2

SW1 (1-4)   INTERRUPT "B" SWITCHES         DISABLED               OPEN

SW1 (5-6)   MEMORY ADDRESS SWITCHES        D800H                  OPEN

SW1 (7)     DUAL SPEED SWITCH              DUAL SPEED DISABLED    OPEN

SW1 (8)     PIN 2 POLARITY SWITCH          AT-TYPE FLOPPY DRIVE   CLOSED

SW1 (9)     FLOPPY PRECOMPENSATION         DATA RATE DEPENDENT    OPEN

SW1 (10)    FLOPPY ENABLE SWITCH           FLOPPY ENABLED         CLOSED

SW1 (1-2)   INTERRUPT "A" SWITCHES         DISABLED               OPEN

SW1 (3-4)   FACTORY SET                    ----                   OPEN

SW1 (5)     SCSI PARITY SWITCH             PARITY ENABLED         OPEN

SW1 (6-8)   SCSI ID                        SCSI ID IS 7           OPEN
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MEMORY CONFIGURATION JUMPER - W1
Used to configure the DTC 31/3280 for a 2K or an 8K static ram chip.

FLOPPY PORT ADDRESS JUMPER - W2
Controls primary & secondary port addresses for the hard and floppy drives.

INTERRUPT "B" SWITCHES - SW1 (1-4)
Defines interrupt level reported to the computer during an Inquiry command.
Interrupt "B" must specify the same interrupt level as defined by the
interrupt "A" switches.
            -------------------------------------------
           |       SWITCHES                | INTERRUPT |
           |-------------------------------------------|
           |   1   |   2   |   3   |   4   |           |
           |-------------------------------------------|
           | OPEN  | OPEN  | OPEN  | OPEN  | DISABLED  |
           |-------------------------------------------|
           | CLOSED| OPEN  | OPEN  | OPEN  |    15     |
           |-------------------------------------------|
           | OPEN  | CLOSED| OPEN  | OPEN  |    12     |
           |-------------------------------------------|
           | OPEN  | OPEN  | CLOSED| OPEN  |    11*    |
           |-------------------------------------------|
           | OPEN  | OPEN  | OPEN  | CLOSED|    10     |
            -------------------------------------------


MEMORY ADDRESS SWITCHES - SW1 (5-6)
THE DTC 31/3280 requires a 16K memory space.  The memory address switches
define the base, or starting address of this memory space.

            SWITCHES   | BASE ADDRESS
           ----|-------|-------------
           ON  | ON    | CC00H              OPEN = OFF
           OFF | ON    | C800H            CLOSED = ON
           ON  | OFF   | DC00H
          *OFF | OFF   | D800H


DUAL SPEED SWITCH - SW1 (7)
The Dual Speed Switch allows the DTC3280 to support dual speed floppy disk
drives.  This switch must be closed when connecting dual speed floppy disk
drives to the DTC3280.  The default setting for this switch is open.

 SW1 (7) *Open - Dual speed floppy disk drives not supported
 SW1 (7) Closed - Dual speed floppy disk drives supported

Pin 2 Polarity Switch - SW1 (8)
The Pin 2 Polarity Switch allows the DTC3280 to support AT and PS/2-type
floppy disk drives.

    DRIVE TYPE         SWITCH SETTING         DRIVE SELECT
       AT                 CLOSED                   2
      PS/2                 OPEN                    2
    AT & PS/2              OPEN                 1,3 or 4

FLOPPY PRECOMPENSATION CONTROL SWITCH - SW1 (9)
The floppy precompensation control switch is used to control the amount
of precompensation.

  SW1 (9) CLOSED:  Fixed at 125ns
  SW1 (9) *OPEN:   Data-Rate-Dependent

FLOPPY ENABLE SWITCH - SW1 (10)
The floppy circuitry on the DTC3280 is enabled when this switch is closed.

  SW1 (10) *CLOSED:  Floppy circuitry enabled
  SW1 (10) OPEN:     Floppy circuitry disabled

INTERRUPT "A" SWITCHES - SW2 (1-2)
The Interrupt "A" switches define the DTC31/3280 interrupt level.  The
Host Adaptor can be configured to use interrupt level 10,11,12, or 13.
The table below defines the switch settings and the corresponding
interrupt level.
Note:  The DTC31/3280 does not use interrupts in a DOS enviroment.
     SWITCHES       INTERRUPT
      1  |  2       LEVEL
     ----|--------------------
     OFF | OFF       15           OPEN = OFF
      ON | OFF       12         CLOSED = ON
     OFF | ON        11
      ON | ON        10

SW2 (3-4)
Reserved.  For factory use only must be open to operate properly.

SCSI PARITY SWITCH - SW2 (5)
The SCSI parity switch enables the parity bit on the SCSI bus.

  SW2 (5) CLOSED - Parity disabled
  SW2 (5) OPEN   - Parity enabled

SCSI ID SWITCHES - SW2 (6-8)
Each device on the SCSI bus, including the DTC31/3280, must have a
unique SCSI ID from zero to seven.  These switches are used to define
the SCSI ID for the DTC31/3280, as described below.

     SWITCH |  0   1   2   3   4   5   6   7
     -------|--------------------------------
        6   | ON  OFF ON  OFF ON  OFF ON  OFF
        7   | ON  ON  OFF ON  OFF ON  OFF OFF
        8   | ON  ON  ON  ON  OFF OFF OFF OFF


DETERMINE YOUR SOFTWARE REQUIREMENTS
The DTC31/3280 software contains drivers and utilities that, in conjunction
with the DTC31/3280 hardware, allow you to install and operate multiple
SCSI devices.  This section should be referred to in order to determine
the software requirements for your particular configuration.  The files
contained in the DTC31/3280 software diskette are as follows:

  GSCSI4.SYS           DTC31/3280 DOS Driver
  GSCSI4.EXE           DTC31/3280 Removable Cartridge Driver
  GFDISK.EXE           Format and partition utility
  GSDIAG.EXE           Low-level format utility
  AUTOEXEC.BAT         Auto-executable file
  CONFIG.SYS           System configuration file

GSCSI4.SYS is a DOS device driver that is required if your system has more
than two SCSI devices or if your system has any ST506 (MFM,RLL) or ESDI
hard disk drives.

GSCSI4.EXE is a DOS device driver that supports SCSI removable cartridge
drivers.  If you are connecting a removable cartridge SCSI device to the
DTC31/3280, you need to install GSCSI4.EXE.

INSTALL THE DTC31/3280
The following steps are required to install the DTC31/3280 in your computer:

 * Set the ID of each SCSI device on your system.  Each SCSI device, including
   the DTC31/3280, must have a unique ID from zero to seven.

 * Install internal SCSI devices into the computer.

 * NOTE:  The first and the last devices connected to the SCSI bus must have
   terminating resistors.  If the DTC31/3280 is not physically the first or
   last device on the cable, remove the TP1 and TP2 resistor packs.  The
   DTC31/3280 comes from the factory to be either the first or the last device.

 * If you are using internal SCSI devices, connect one end of the 50 pin header
   on the DTC31/3280.

 * Remove one of the metal brackets from any empty expansion slot in the rear
   of the computer chassis and insert the DTC31/3280.

 * Connect the internal SCSI devices to the 50 pin ribbon cable.  Be sure
   that pin 1 of the 50 pin header is connected to pin 1 of the SCSI devices.

 * Reassemble the computer.  Refer to your computer manual for the proper
   procedure.

 * Connect any external SCSI devices to the external connector on the
   DTC31/3280 using the 50-pin shielded cable.

DETERMINE YOUR SOFTWARE REQUIREMENTS
The DTC31/3280 software contains drivers and utilities that, in conjunction
with the DTC31/3280 hardware, allow you to install and operate multiple
SCSI devices.  This section should be referred to in order to determine the
software requirements for your particular configuration.  The files contained
on the DTC31/3280 software diskette are as follows:

 GSCSI4.SYS           DTC31/3280 DOS DRIVER
 GSCSI4.EXE           DTC31/3280 REMOVEABLE CARTRIDGE DRIVER
 GSFDISK.EXE          PARTITION UTILITY
 GSDIAG.EXE           LOW-LEVEL FORMAT UTILITY
 AUTOEXEC.BAT         AUTO-EXECUTABLE FILE
 CONFIG.SYS           SYSTEM CONFIGURATION FILE

GSCSI4.SYS is a DOS device driver that is required if your system has more
than two SCSI devices or if your system has any ST506 (MFM,RLL) or ESDI
hard disk drives.

GSCSI4.EXE is a DOS device driver that supports SCSI removeable cartridge
drives.  If you are connecting a removeable cartridge SCSI device to the
DTC31/3280, you need to install GSCSI4.EXE.

INSTALLING THE DTC31/3280 SOFTWARE ON A HARD DISK (NON-BOOTABLE CONFIG.)
Follow the procedure below to install the DTC31/3280 software on your hard
disk drive. where Drive C: represents a hard disk drive and drive A:
represents a floppy disk drive.

* Insert the DTC31/3280 software diskette in drive A:.  At the DOS prompt,
  enter the following command to change to the root directory:

                           CD C:\

* At the new DOS prompt, enter the following command to copy the files
  to the hard disk:

                           Copy A:G*.* C:

* If your system configuration does not require the DTC31/3280 DOS drivers,
  GSCSI4.EXE and GSCSI4.SYS your software installation is now complete.

* If your system configuration requires GSCSI4.SYS, add the following
  statement to your CONFIG.SYS file:

                           DEVICE=C:GSCSI4.SYS

 If your system configuration requires GSCSI4.SYS, add the following
 statement to your CONFIG.SYS file:

                           COPY A:CONFIG.SYS C:

* If your system configuration requires GSCSI4.EXE, add the following
  statement to your AUTOEXEC.BAT file:

                           GSCSI4

 If your system does not have an AUTOEXEC.BAT file, copy this file from
 the DTC31/3280 software diskette to your hard disk by entering the
 following command:

                           COPY A:AUTOEXEC.BAT C:

* Your software installation is now complete.  Please note, you must re-boot
  your computer prior to accessing any of the SCSI devices.

INSTALLING THE DTC31/3280 SOFTWARE ON A DUAL-FLOPPY SYSTEM (BOOTABLE CONFIG.)
If your system does not have a hard disk drive but has two floppy disk drives,
follow the procedure below to install the DTC31/3280 software on your start-
up diskette.  In the procedure, both drive A: and B: represent floppy disk
drives.

* Switch on your system with the start-up diskette in drive A:.  Insert the
  DTC31/3280 software diskette in Drive B:.  Enter the following command
  to change the root directory:

                           CD A:\

* Copy the files from the DTC31/3280 software diskette to your start-up
  diskette with the following command:

                           Copy B:G*.* A:

* If your system configuration does not require the DTC31/3280 DOS drivers,
  GSCSI4.EXE and GSCSI4.SYS, your software installation is now complete.

* If your system configuration requires GSCSI.SYS, add the following state-
  ment to your CONFIG.SYS file:

                           DEVICE=A:GSCSI4.SYS

  If your system does not have a CONFIG.SYS file, copy this file from the
  DTC31/3280 software diskette to your start-up diskette by entering the
  following command:

                           Copy B:CONFIG.SYS A:

* If your system configuration requires GSCSI4.EXE, add the following state-
  ment to your AUTOEXEC.BAT file:

                           GSCSI4

  If your system does not have an AUTOEXEC.BAT file, copy this file from
  the DTC31/3280 software diskette to your start-up diskette by entering the
  following command:

                           COPY B:AUTOEXEC.BAT A:

* Your software installation is now complete.  Please note, you must re-boot
  your computer prior to accessing any of the SCSI devices.

USING GSDIAG
The DTC31/3280 software includes GSDIAG low-level format utility for SCSI
disk drives.  Follow the procedure below to invoke this utility.

* At the DOS prompt, enter the following command:

                           GSDIAG

* Follow the instructions on your computer screen.  Select Option 1 to
  format with the Drive Default Values.  This option uses the parameters
  defined by the SCSI disk drive.  If your system has a special configuration,
  it may be necessary to select Format Options 2-4 instead of selecting the
  default values.  Option 2 allows you to manually enter a defect map.
  Options 3 and 4 are used to change the Mode Select parameters.

GSFDISK
GSFDISK is the DTC SCSI host adapter partition utility.  This utility can be
used to create a single or multiple partition on a SCSI drive.  DOS version
4.0 or greater must be used to create a single or multiple partition on a
SCSI drive.  DOS version 4.0 or greater must be used to create a partition
greater than 32 MB (which is a DOS limitation).

                           NOTE
 This procedure must be repeated for all the SCSI disk drives.  After part-
 itioning each SCSI disk drive, the system will reboot.

Use the following steps to partition the SCSI disk drive.  At the DOS prompt:
              Type the following:
                           GSFDISK

Follow the on-screen message to complete the set-up partition procedure.