CMS ENHANCEMENTS, INC.
======================

   HBA-SA0

   Data Bus                8/16 bit ISA                           
   Card Size               Full height, half length               
   Hard Drives Supported   Up to 7 SCSI devices                   
   Floppy Drives Supported None                                   

<gopher://bitreich.org/I/th99/c/C-D/21381-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |       Function        | Label |      Function      | Label |
   |-----------------------+-------+--------------------+-------|
   | 50-pin SCSI connector |  J1   | 1.5A fuse          |  F1   |
   | - internal            |       |                    |       |
   |-----------------------+-------+--------------------+-------|
   | 50-pin SCSI connector |  J2   | 4-pin drive active | LED3  |
   | - external            |       | LED                |       |
   |-----------------------+-------+--------------------+-------|
   | 3-pin DC power out    |  J6   |                    |       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |            Setting             | Label |     Position      |
   |--------------------------------+-------+-------------------|
   |>> | TERMPWR enabled            |  W1   | Pins 1 & 2 closed |
   |---+----------------------------+-------+-------------------|
   |   | TERMPWR disabled           |  W1   | Pins 2 & 3 closed |
   |---+----------------------------+-------+-------------------|
   |>> | Card uses 8-bit transfers  |  W5   | Pins 1 & 2 closed |
   |---+----------------------------+-------+-------------------|
   |   | Card uses 16-bit transfers |  W5   | Pins 2 & 3 closed |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |             SOFTWARE SUPPORTED CONFIGURATIONS              |
   |------------------------------------------------------------|
   |       BIOS Address        |      IRQ       |      DMA      |
   |---------------------------+----------------+---------------|
   |           C000h           |       10       |       6       |
   |---------------------------+----------------+---------------|
   |           C800h           |       11       |       6       |
   |---------------------------+----------------+---------------|
   |           D000h           |       12       |       7       |
   |---------------------------+----------------+---------------|
   |           D800h           |       10       |       5       |
   |------------------------------------------------------------|
   |      Note:IRQ and DMA are BIOS address dependent and must  |
   |      be set in these combinations.                         |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                   BIOS ADDRESS SELECTION                   |
   |------------------------------------------------------------|
   |        Setting        |       S3/7       |      S3/8       |
   |-----------------------+------------------+-----------------|
   |   |       C000h       |        On        |       On        |
   |---+-------------------+------------------+-----------------|
   |   |       C800h       |       Off        |       On        |
   |---+-------------------+------------------+-----------------|
   |   |       D000h       |        On        |       Off       |
   |---+-------------------+------------------+-----------------|
   |>> |       D800h       |       Off        |       Off       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                   DMA CHANNEL SELECTION                    |
   |------------------------------------------------------------|
   | Setting |  W2/A  |  W2/B  |  W2/C  | W4/A  | W4/B  | W4/C  |
   |---------+--------+--------+--------+-------+-------+-------|
   |>> | DMA5 |  Open  |  Open  | Closed | Open  | Open  |Closed |
   |--+------+--------+--------+--------+-------+-------+-------|
   |  | DMA6 |  Open  | Closed |  Open  | Open  |Closed | Open  |
   |--+------+--------+--------+--------+-------+-------+-------|
   |  | DMA7 | Closed |  Open  |  Open  |Closed | Open  | Open  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    INTERRUPT SELECTION                     |
   |------------------------------------------------------------|
   |     Setting     |     W3/A     |    W3/B     |    W3/C     |
   |-----------------+--------------+-------------+-------------|
   |>> |    IRQ10    |     Open     |    Open     |   Closed    |
   |---+-------------+--------------+-------------+-------------|
   |   |    IRQ11    |     Open     |   Closed    |    Open     |
   |---+-------------+--------------+-------------+-------------|
   |   |    IRQ12    |    Closed    |    Open     |    Open     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DMA TRANSFER RATE                      |
   |------------------------------------------------------------|
   | Transfer  |  DRAM   | S3/1 | S3/2 | S3/3 |S3/4 |S3/5 |S3/6 |
   |-----------+---------+------+------+------+-----+-----+-----|
   |>>|3.33MBps |200-250nS| Off  |  On  | Off  | On  | Off | Off |
   |-+---------+---------+------+------+------+-----+-----+-----|
   | |4.55MBps |150-200nS| Off  | Off  |  On  | On  | On  | Off |
   |-+---------+---------+------+------+------+-----+-----+-----|
   | |5.56MBps |120-150nS|  On  | Off  |  On  | Off | Off | On  |
   |-+---------+---------+------+------+------+-----+-----+-----|
   | |7.14MBps |80-120nS | Off  |  On  |  On  | On  | Off | On  |
   |-+---------+---------+------+------+------+-----+-----+-----|
   | | 10MBps  | 40-80nS |  On  |  On  |  On  | Off | On  | On  |
   |-+---------+---------+------+------+------+-----+-----+-----|
   | |12.5MBps |  <40nS  |  On  |  On  |  On  | On  | On  | On  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                      SCSI TERMINATION                      |
   |------------------------------------------------------------|
   |    Setting    |      R1      |      R2      |      R3      |
   |---------------+--------------+--------------+--------------|
   |  Terminated   |  Installed   |  Installed   |  Installed   |
   |---------------+--------------+--------------+--------------|
   |      Not      |     Not      |     Not      |     Not      |
   |  terminated   |  installed   |  installed   |  installed   |
   +------------------------------------------------------------+