(TXT) View Source
       
       # JOINDATA SYSTEMS, INC.
       
          G386U
       
          Processor         80386DX                                      
          Processor Speed   33/40MHz                                     
          Chip Set          UMC                                          
          Max. onboard DRAM 32MB                                         
          Cache             32/64/128/256KB                              
          BIOS              AMI                                          
          Dimensions        330mm x 218mm                                
          I/O Options       None                                         
          NPU Options       80387DX                                      
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          | Purpose        | Location | Purpose             | Location |
          |----------------+----------+---------------------+----------|
          | Reset switch   |    J9    | Speaker             |   J12    |
          |----------------+----------+---------------------+----------|
          | Turbo LED      |   J10    | Power LED & keylock |   J13    |
          |----------------+----------+---------------------+----------|
          | Turbo switch   |   J11    | External battery    |   J14    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |            Function             | Jumper/Switch | Position |
          |---------------------------------+---------------+----------|
          | » | Factory configured - do not |      J1       | Unknown  |
          |   | alter                       |               |          |
          |---+-----------------------------+---------------+----------|
          | » | Factory configured - do not |      J2       | Unknown  |
          |   | alter                       |               |          |
          |---+-----------------------------+---------------+----------|
          | » | NPU enabled                 |   W1 & W10    |  Closed  |
          |---+-----------------------------+---------------+----------|
          |   | NPU disabled                |   W1 & W10    |   Open   |
          |---+-----------------------------+---------------+----------|
          | » | Monitor type select color   |      W11      |  Closed  |
          |---+-----------------------------+---------------+----------|
          |   | Monitor type select         |      W11      |   Open   |
          |   | monochrome                  |               |          |
          |---+-----------------------------+---------------+----------|
          | » | CMOS memory normal          |      W9       |  Closed  |
          |   | operation (Internal         |               |          |
          |   | Battery)                    |               |          |
          |---+-----------------------------+---------------+----------|
          |   | CMOS memory normal          |      W9       |   Open   |
          |   | operation (External         |               |          |
          |   | Battery)                    |               |          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     DRAM CONFIGURATION                     |
          |------------------------------------------------------------|
          |       Size       |       Bank 0       |       Bank 1       |
          |------------------+--------------------+--------------------|
          |       1MB        |    (4) 256K x 9    |        NONE        |
          |------------------+--------------------+--------------------|
          |       2MB        |    (4) 256K x 9    |    (4) 256K x 9    |
          |------------------+--------------------+--------------------|
          |       4MB        |     (4) 1M x 9     |        NONE        |
          |------------------+--------------------+--------------------|
          |       5MB        |    (4) 256K x 9    |     (4) 1M x 9     |
          |------------------+--------------------+--------------------|
          |       8MB        |     (4) 1M x 9     |     (4) 1M x 9     |
          |------------------+--------------------+--------------------|
          |       16MB       |     (4) 4M x 9     |        NONE        |
          |------------------+--------------------+--------------------|
          |       20MB       |     (4) 1M x 9     |     (4) 4M x 9     |
          |------------------+--------------------+--------------------|
          |       32MB       |     (4) 4M x 9     |     (4) 4M x 9     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    CACHE CONFIGURATION                     |
          |------------------------------------------------------------|
          | Size  | U21, U22, U23, &  | U15, U16, U17, & |     TAG     |
          |       |        U24        |       U18        |             |
          |-------+-------------------+------------------+-------------|
          | 32KB  |    (4) 8K x 8     |       NONE       | (2) 16K x 4 |
          |-------+-------------------+------------------+-------------|
          | 64KB  |    (4) 8K x 8     |    (4) 8K x 8    | (2) 16K x 4 |
          |-------+-------------------+------------------+-------------|
          | 128KB |    (4) 32K x 8    |       NONE       | (2) 64K x 4 |
          |-------+-------------------+------------------+-------------|
          | 256KB |    (4) 32K x 8    |   (4) 32K x 8    | (2) 64K x 4 |
          |------------------------------------------------------------|
          | Note:U21 - U24 and U15 - U18 may be located on the system  |
          | board.                                                     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 CACHE JUMPER CONFIGURATION                 |
          |------------------------------------------------------------|
          | Size  |     W3     |    W4    |    W5    |   W6   |   W7   |
          |-------+------------+----------+----------+--------+--------|
          | 32KB  | pins 1 & 2 | pins 1 & | pins 1 & | pins 2 |  Open  |
          |       |            |    2     |    2     |  & 3   |        |
          |-------+------------+----------+----------+--------+--------|
          | 64KB  | pins 2 & 3 | pins 1 & | pins 1 & | pins 1 |  Open  |
          |       |            |    2     |    2     |  & 2   |        |
          |-------+------------+----------+----------+--------+--------|
          | 128KB | pins 2 & 3 | pins 2 & | pins 1 & | pins 2 | pins 1 |
          |       |            |    3     |    2     |  & 3   |  & 2   |
          |-------+------------+----------+----------+--------+--------|
          | 256KB | pins 2 & 3 | pins 2 & | pins 2 & | pins 1 | pins 2 |
          |       |            |    3     |    3     |  & 2   |  & 3   |
          |------------------------------------------------------------|
          | Note:Pins designated should be in the closed position.     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  NPU CLOCK CONFIGURATION                   |
          |------------------------------------------------------------|
          |       Mode       |     OSC2      |       W8       |   W9   |
          |------------------+---------------+----------------+--------|
          |   Synchronous    | Not installed |   pins 1 & 2   |  Open  |
          |                  |               |     closed     |        |
          |------------------+---------------+----------------+--------|
          |   Asynchronous   |     50MHz     |   pins 2 & 3   | Closed |
          |      25MHz       |               |     closed     |        |
          |------------------+---------------+----------------+--------|
          |   Asynchronous   |     66MHz     |   pins 2 & 3   | Closed |
          |      33HMz       |               |     closed     |        |
          +------------------------------------------------------------+