POSITIVE CORPORATION
====================

   VGA-16

   Category                     Video                             
   Video Types Supported        XVGA                              
   Video Processor              Unidentified                      
   Highest Resolution Supported 1024 x 768                        
   Data Bus Type                16-bit ISA                        
   Memory Type                  DRAM                              
   Maximum Onboard Memory       512KB                             

<gopher://bitreich.org/I/th99/v/P-R/51245-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |        Purpose         | Location |   Purpose   | Location |
   |------------------------+----------+-------------+----------|
   | 15-pin analog video    |   CN1    | VGA feature |   CN2    |
   | port                   |          | connector   |          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                   VGA BIOS CONFIGURATION                   |
   |------------------------------------------------------------|
   |           Setting             |            JP1             |
   |-------------------------------+----------------------------|
   |>> |     VGA BIOS Enabled      |     Pins 1 & 2 closed      |
   |---+---------------------------+----------------------------|
   |   |      Remaps VGA BIOS      |     Pins 2 & 3 closed      |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                  VGA TIMING CONFIGURATION                  |
   |------------------------------------------------------------|
   |           Setting             |            JP4             |
   |-------------------------------+----------------------------|
   |>> |      Standard timing      |     Pins 1 & 2 closed      |
   |---+---------------------------+----------------------------|
   |   |      Special timing       |     Pins 2 & 3 closed      |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                   VGA MODE CONFIGURATION                   |
   |------------------------------------------------------------|
   |                Setting                 |        JP6        |
   |----------------------------------------+-------------------|
   |>> |     Color or Monochrome modes      | Pins 1 & 2 closed |
   |---+------------------------------------+-------------------|
   |   |  Operation of two monitors & two   | Pins 2 & 3 closed |
   |   |            video boards            |                   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                VGA BIOS TYPE CONFIGURATION                 |
   |------------------------------------------------------------|
   |          Setting           |              JP7              |
   |----------------------------+-------------------------------|
   |>> |         16-bit         |       Pins 1 & 2 closed       |
   |---+------------------------+-------------------------------|
   |   |         8-bit          |       Pins 2 & 3 closed       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                   VGA ROM CONFIGURATION                    |
   |------------------------------------------------------------|
   |             Setting               |          JP8           |
   |-----------------------------------+------------------------|
   |>> |   Paired video ROM (16-bit)   |   Pins 2 & 3 closed    |
   |---+-------------------------------+------------------------|
   |   |   Single video ROM (8-bit)    |   Pins 1 & 2 closed    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DRAM CONFIGURATION                     |
   |------------------------------------------------------------|
   |      Memory      |       Bank 0       |       Bank 1       |
   |------------------+--------------------+--------------------|
   |      256KB       |    (2) 256K x 4    |        None        |
   |------------------+--------------------+--------------------|
   |      512KB       |    (2) 256K x 4    |    (2) 256K x 4    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |             FACTORY CONFIGURED - DO NOT ALTER              |
   |------------------------------------------------------------|
   |           Jumper            |           Position           |
   |-----------------------------+------------------------------|
   |             JP2             |             N/A              |
   |-----------------------------+------------------------------|
   |             JP3             |             N/A              |
   |-----------------------------+------------------------------|
   |             JP5             |             Open             |
   |------------------------------------------------------------|
   | Note: Exact location of JP5 is unidentified.               |
   +------------------------------------------------------------+