ROBOTECH, INC.
==============

   VL-BUS 486

   Processor         80486SX/80486DX/80486DX2                     
   Processor Speed   20/25/33/50(internal)/50/66(internal)MHz     
   Chip Set          Toshiba                                      
   Max. Onboard DRAM 32MB                                         
   Cache             32/64/128/256KB                              
   BIOS              AMI                                          
   Dimensions        254mm x 220mm                                
   I/O Options       32-bit VESA local bus slots (2)              
   NPU Options       None                                         

<gopher://bitreich.org/I/th99/m/P-R/32173-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose       | Location | Purpose              | Location |
   |---------------+----------+----------------------+----------|
   | Turbo LED     |   JP3    | Turbo switch         |   JP10   |
   |---------------+----------+----------------------+----------|
   | Speaker       |   JP7    | External battery     |   JP25   |
   |---------------+----------+----------------------+----------|
   | Power LED &   |   JP8    | 32-bit VESA local    |  SL1 &   |
   | keylock       |          | bus slots            |   SL2    |
   |---------------+----------+----------------------+----------|
   | Reset switch  |   JP9    |                      |          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |             Function             | Jumper |    Position    |
   |----------------------------------+--------+----------------|
   |>> | Turbo switch select turbo    |  JP10  |     Closed     |
   |---+------------------------------+--------+----------------|
   |   | Turbo switch select normal   |  JP10  |      Open      |
   |---+------------------------------+--------+----------------|
   |>> | CMOS memory normal operation |  JP24  |   pins 2 & 3   |
   |   |                              |        |     closed     |
   |---+------------------------------+--------+----------------|
   |   | CMOS memory clear            |  JP24  |   pins 1 & 2   |
   |   |                              |        |     closed     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     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     |
   |------------------+--------------------+--------------------|
   |       20MB       |     (4) 4M x 9     |     (4) 1M x 9     |
   |------------------+--------------------+--------------------|
   |       32MB       |     (4) 4M x 9     |     (4) 4M x 9     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    CACHE CONFIGURATION                     |
   |------------------------------------------------------------|
   |    Size    |    Bank 0     |    Bank 1     |      TAG      |
   |------------+---------------+---------------+---------------|
   |    32KB    |  (4) 8K x 8   |     NONE      |  (1) 8K x 8   |
   |------------+---------------+---------------+---------------|
   |    64KB    |  (4) 8K x 8   |  (4) 8K x 8   |  (1) 8K x 8   |
   |------------+---------------+---------------+---------------|
   |   128KB    |  (4) 32K x 8  |     NONE      |  (1) 8K x 8   |
   |------------+---------------+---------------+---------------|
   |   256KB    |  (4) 32K x 8  |  (4) 32K x 8  |  (1) 32K x 8  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 CACHE JUMPER CONFIGURATION                 |
   |------------------------------------------------------------|
   | Size  | JP14  | JP15  | JP16  | JP17  | JP20 | JP21 | JP22 |
   |-------+-------+-------+-------+-------+------+------+------|
   | 32KB  | 1 & 2 | Open  | Open  | Open  |2 & 3 |2 & 3 |1 & 2 |
   |-------+-------+-------+-------+-------+------+------+------|
   | 64KB  | 2 & 3 | Open  | Open  |Closed |1 & 2 |2 & 3 |1 & 2 |
   |-------+-------+-------+-------+-------+------+------+------|
   | 128KB | 1 & 2 |Closed | Open  |Closed |1 & 2 |1 & 2 |2 & 3 |
   |-------+-------+-------+-------+-------+------+------+------|
   | 256KB | 2 & 3 |Closed |Closed |Closed |1 & 2 |1 & 2 |1 & 2 |
   |------------------------------------------------------------|
   |Note: Pins designated should be in the closed position.     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                   CPU TYPE CONFIGURATION                   |
   |------------------------------------------------------------|
   |    Type     |       JP12       |  JP13  |       JP18       |
   |-------------+------------------+--------+------------------|
   |   80486SX   |    pins 2 & 3    |  Open  |    pins 1 & 2    |
   |             |      closed      |        |      closed      |
   |-------------+------------------+--------+------------------|
   | 80486DX/DX2 |    pins 1 & 2    | Closed |    pins 2 & 3    |
   |             |      closed      |        |      closed      |
   +------------------------------------------------------------+