(TXT) View Source
       
       # UNIDENTIFIED
       
          NEAT-286 (VER. 2)
       
          Processor              80286                                   
          Processor Speed        16/20MHz                                
          Chip Set               Neat                                    
          Video Chip Set         None                                    
          Maximum Onboard Memory 8MB                                     
          Maximum Video Memory   None                                    
          Cache                  None                                    
          BIOS                   Unidentified                            
          Dimensions             330mm x 218mm                           
          I/O Options            External memory card                    
          NPU Options            80287                                   
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          | Purpose           | Location | Purpose          | Location |
          |-------------------+----------+------------------+----------|
          | Power LED &       |    J1    | Turbo switch     |   JP7    |
          | keylock           |          |                  |          |
          |-------------------+----------+------------------+----------|
          | Speaker           |    J2    | Turbo LED        |   LF1    |
          |-------------------+----------+------------------+----------|
          | External battery  |    J3    | External memory  |   SL1    |
          |                   |          | card             |          |
          |-------------------+----------+------------------+----------|
          | Reset switch      |   JP1    |                  |          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |              Function              | Label |   Position    |
          |------------------------------------+-------+---------------|
          |   | NPU asynchronous with CPU      |  JP2  |  Pins 1 & 2   |
          |   |                                |       |    closed     |
          |---+--------------------------------+-------+---------------|
          |   | NPU synchronous with CPU       |  JP2  |  Pins 2 & 3   |
          |   |                                |       |    closed     |
          |---+--------------------------------+-------+---------------|
          |   | BIOS type select 27128         |  JP4  |  Pins 1 & 2   |
          |   |                                |       |    closed     |
          |---+--------------------------------+-------+---------------|
          |   | BIOS type select 27256         |  JP4  |  Pins 2 & 3   |
          |   |                                |       |    closed     |
          |---+--------------------------------+-------+---------------|
          |   | CPU = CPU speed                |  JP5  |  Pins 1 & 2   |
          |   |                                |       |    closed     |
          |---+--------------------------------+-------+---------------|
          |   | CPU = NPU OSC speed            |  JP5  |  Pins 2 & 3   |
          |   |                                |       |    closed     |
          |---+--------------------------------+-------+---------------|
          |   | Monitor type select color      |  JP6  |    Closed     |
          |---+--------------------------------+-------+---------------|
          |   | Monitor type select monochrome |  JP6  |     Open      |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     DRAM CONFIGURATION                     |
          |------------------------------------------------------------|
          |  Size  |   Bank A   |   Bank B   |   Bank C   |   Bank D   |
          |--------+------------+------------+------------+------------|
          | 512KB  | (18) 41256 |    None    |    None    |    None    |
          |--------+------------+------------+------------+------------|
          | 640KB  | (18) 41256 | (18) 4164  |    None    |    None    |
          |--------+------------+------------+------------+------------|
          |  1MB   | (18) 41256 | (18) 41256 |    None    |    None    |
          |--------+------------+------------+------------+------------|
          | 1.5MB  | (18) 41256 | (18) 41256 | (2) 256K x |    None    |
          |        |            |            |     9      |            |
          |--------+------------+------------+------------+------------|
          | 1.64MB | (18) 41256 | (18) 4164  | (2) 256K x | (2) 256K x |
          |        |            |            |     9      |     9      |
          |--------+------------+------------+------------+------------|
          |  2MB   |    (18)    |    None    |    None    |    None    |
          |        |   411000   |            |            |            |
          |--------+------------+------------+------------+------------|
          |  2MB   | (18) 41256 | (18) 41256 | (2) 256K x | (2) 256K x |
          |        |            |            |     9      |     9      |
          |--------+------------+------------+------------+------------|
          |  3MB   | (18) 41256 | (18) 41256 | (2) 1M x 9 |    None    |
          |--------+------------+------------+------------+------------|
          |  4MB   |    (18)    |    (18)    |    None    |    None    |
          |        |   411000   |   411000   |            |            |
          |--------+------------+------------+------------+------------|
          | 4.64MB | (18) 41256 | (18) 4164  | (2) 1M x 9 | (2) 1M x 9 |
          |--------+------------+------------+------------+------------|
          |  5MB   | (18) 41256 | (18) 41256 | (2) 1M x 9 | (2) 1M x 9 |
          |--------+------------+------------+------------+------------|
          |  6MB   |    (18)    |    (18)    | (2) 1M x 9 |    None    |
          |        |   411000   |   411000   |            |            |
          |--------+------------+------------+------------+------------|
          |  8MB   |    (18)    |    (18)    | (2) 1M x 9 | (2) 1M x 9 |
          |        |   411000   |   411000   |            |            |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 DRAM JUMPER CONFIGURATION                  |
          |------------------------------------------------------------|
          |       Setting        |                 JP3                 |
          |----------------------+-------------------------------------|
          | Banks C & D = Bank 0 | 1 & 2, 3 & 4, 6 & 7, 11 & 12, 13 &  |
          |                      | 14, 16 & 17, 18 & 19, 23 & 24, 28 & |
          | Banks A & B = Bank 1 |                 29                  |
          |----------------------+-------------------------------------|
          | Banks A & B = Bank 0 |  2 & 3, 4 & 5, 7 & 8, 9 & 10, 12 &  |
          |                      | 13, 14 & 15, 17 & 18, 19 & 20, 22 & |
          | Banks C & D = Bank 1 |    23, 24 & 25, 27 & 28, 29 & 30    |
          |------------------------------------------------------------|
          | Note: Pins designated should be in the closed position.    |
          +------------------------------------------------------------+