(TXT) View Source
       
       # DIAMOND FLOWER, INC.
       
          DFI-386SX
       
          Processor             80386SX                                  
          Processor Speed       16MHz                                    
          Chip Set              Intel                                    
          Max. Onboard DRAM     8MB                                      
          Cache                 None                                     
          BIOS                  DFI                                      
          Dimensions            330mm x 220mm                            
          I/O Options           None                                     
          NPU Options           80387SX                                  
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          | Purpose          | Location | Purpose           | Location |
          |------------------+----------+-------------------+----------|
          | External battery |    J1    | Turbo LED         |   J12    |
          |------------------+----------+-------------------+----------|
          | Turbo switch     |  J2/J11  | Power LED &       |   J13    |
          |                  |          | keylock           |          |
          |------------------+----------+-------------------+----------|
          | Reset switch     |  J3/J9   | Auxiliary         |   J14    |
          |                  |          | keyboard          |          |
          |------------------+----------+-------------------+----------|
          | Speaker          |   J10    |                   |          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |              Function              | Jumper |   Position   |
          |------------------------------------+--------+--------------|
          | » | Battery select internal        |   J4   |  pins 2 & 3  |
          |   |                                |        |    closed    |
          |---+--------------------------------+--------+--------------|
          |   | Battery select external        |   J4   |  pins 1 & 2  |
          |   |                                |        |    closed    |
          |---+--------------------------------+--------+--------------|
          | » | Monitor type select monochrome |   J5   |  pins 2 & 3  |
          |   |                                |        |    closed    |
          |---+--------------------------------+--------+--------------|
          |   | Monitor type select color      |   J5   |  pins 1 & 2  |
          |   |                                |        |    closed    |
          |---+--------------------------------+--------+--------------|
          | » | BIOS type select 27256         |   J6   |  pins 2 & 3  |
          |   |                                |        |    closed    |
          |---+--------------------------------+--------+--------------|
          |   | BIOS type select 27512         |   J6   |  pins 1 & 2  |
          |   |                                |        |    closed    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     DRAM CONFIGURATION                     |
          |------------------------------------------------------------|
          | Size  |   Bank 0    |   Bank 1   |   Bank 2   |   Bank 3   |
          |-------+-------------+------------+------------+------------|
          | 512KB |  (18 41256  |    NONE    |    NONE    |    NONE    |
          |-------+-------------+------------+------------+------------|
          | 512KB |    NONE     |    NONE    | (2) 256K x |    NONE    |
          |       |             |            |     9      |            |
          |-------+-------------+------------+------------+------------|
          |  1MB  | (18) 41256  | (18) 41256 |    NONE    |    NONE    |
          |-------+-------------+------------+------------+------------|
          |  1MB  |    NONE     |    NONE    | (2) 256K x | (2) 256K x |
          |       |             |            |     9      |     9      |
          |-------+-------------+------------+------------+------------|
          |  2MB  | (18) 41256  | (18) 41256 | (2) 256K x | (2) 256K x |
          |       |             |            |     9      |     9      |
          |-------+-------------+------------+------------+------------|
          |  2MB  | (18) 411000 |    NONE    |    NONE    |    NONE    |
          |-------+-------------+------------+------------+------------|
          |  2MB  |    NONE     |    NONE    | (2) 1M x 9 |    NONE    |
          |-------+-------------+------------+------------+------------|
          |  4MB  | (18) 411000 |    (18)    |    NONE    |    NONE    |
          |       |             |   411000   |            |            |
          |-------+-------------+------------+------------+------------|
          |  4MB  |    NONE     |    NONE    | (2) 1M x 9 | (2) 1M x 9 |
          |-------+-------------+------------+------------+------------|
          |  8MB  | (18) 411000 |    (18)    | (2) 1M x 9 | (2) 1M x 9 |
          |       |             |   411000   |            |            |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 DRAM JUMPER CONFIGURATION                  |
          |------------------------------------------------------------|
          |  Size  |  J15   |  J16   |  J17   |  J18   |  J19  |  J20  |
          |--------+--------+--------+--------+--------+-------+-------|
          | 512KB  | 2 & 3  | 2 & 3  | 2 & 3  | 2 & 3  | 2 & 3 | 2 & 3 |
          |--------+--------+--------+--------+--------+-------+-------|
          | 512KB  | 1 & 2  | 1 & 2  | 1 & 2  | 1 & 2  | 1 & 2 | 1 & 2 |
          |--------+--------+--------+--------+--------+-------+-------|
          |  1MB   | 2 & 3  | 2 & 3  | 2 & 3  | 2 & 3  | 2 & 3 | 2 & 3 |
          |--------+--------+--------+--------+--------+-------+-------|
          |  1MB   | 1 & 2  | 1 & 2  | 1 & 2  | 1 & 2  | 1 & 2 | 1 & 2 |
          |--------+--------+--------+--------+--------+-------+-------|
          |  2MB   | 2 & 3  | 2 & 3  | 2 & 3  | 2 & 3  | 2 & 3 | 2 & 3 |
          |--------+--------+--------+--------+--------+-------+-------|
          |  2MB   | 2 & 3  | 2 & 3  | 2 & 3  | 2 & 3  | 2 & 3 | 2 & 3 |
          |--------+--------+--------+--------+--------+-------+-------|
          |  2MB   | 1 & 2  | 1 & 2  | 1 & 2  | 1 & 2  | 1 & 2 | 1 & 2 |
          |--------+--------+--------+--------+--------+-------+-------|
          |  4MB   | 2 & 3  | 2 & 3  | 2 & 3  | 2 & 3  | 2 & 3 | 2 & 3 |
          |--------+--------+--------+--------+--------+-------+-------|
          |  4MB   | 1 & 2  | 1 & 2  | 1 & 2  | 1 & 2  | 1 & 2 | 1 & 2 |
          |--------+--------+--------+--------+--------+-------+-------|
          |  8MB   | 2 & 3  | 2 & 3  | 2 & 3  | 2 & 3  | 2 & 3 | 2 & 3 |
          |------------------------------------------------------------|
          | Note: Pins designated should be in the closed position.    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  DRAM MODE CONFIGURATION                   |
          |------------------------------------------------------------|
          |     Mode     | Maximum active |  DRAM  |   J7    |   J8    |
          |              |     pages      |  type  |         |         |
          |--------------+----------------+--------+---------+---------|
          | Fast page 1  |       4        | 100ns  |  Open   |  Open   |
          |    (FP1)     |                |        |         |         |
          |--------------+----------------+--------+---------+---------|
          | Fast page 2  |       1        | 100ns  |  Open   | Closed  |
          |    (FP2)     |                |        |         |         |
          |--------------+----------------+--------+---------+---------|
          | Slow page 1  |       4        | 100ns  | Closed  |  Open   |
          |    (SP1)     |                |        |         |         |
          |--------------+----------------+--------+---------+---------|
          | Slow page 2  |       4        | 120ns  | Closed  | Closed  |
          |    (SP2)     |                |        |         |         |
          |------------------------------------------------------------|
          | Note:In order to use fast page modes, the DRAM chips must  |
          | meet the following specifications:                         |
          |                                                            |
          | tCAS (access time)=35ns , tCAC (pulse width)=35ns , tCP    |
          | (precharge time)=20ns.                                     |
          +------------------------------------------------------------+