ESCOM AG
========

   GRAPHICS ACCELERATOR VGA (P/N 2150/2150D)

   Category                     Video                             
   Video Types Supported        XVGA                              
   Video Processor              86C911                            
   Highest Resolution Supported 1280 x 1024                       
   Data Bus Type                16-bit ISA                        
   Memory Type                  VRAM                              
   Maximum Onboard Memory       1MB                               

<gopher://bitreich.org/I/th99/v/E-H/51345-1.png>
   

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

   +------------------------------------------------------------+
   |                DISPLAY RESOLUTION SELECTION                |
   |------------------------------------------------------------|
   |  Resolution  | Vertical | Horizon  | SW1/1 | SW1/2 | SW1/3 |
   |              | Refresh  | Refresh  |       |       |       |
   |--------------+----------+----------+-------+-------+-------|
   |  640 x 480   |   60Hz   | 31.5KHz  |  Off  |  Off  |  Off  |
   |--------------+----------+----------+-------+-------+-------|
   |  640 x 480   |   73Hz   |  38KHz   |  Off  |  Off  |  On   |
   |--------------+----------+----------+-------+-------+-------|
   |  800 x 600   |   60Hz   | 37.9KHz  |  Off  |  On   |  Off  |
   |--------------+----------+----------+-------+-------+-------|
   |  800 x 600   |   72Hz   |  48KHz   |  Off  |  On   |  On   |
   |--------------+----------+----------+-------+-------+-------|
   |  800 x 600   |   56Hz   | 35.5KHz  |  On   |  Off  |  Off  |
   |--------------+----------+----------+-------+-------+-------|
   |  1024 x 768  |  43.5Hz  | 35.5KHz  |  On   |  Off  |  On   |
   |  interlaced  |          |          |       |       |       |
   |--------------+----------+----------+-------+-------+-------|
   |  1024 x 768  |   60Hz   | 48.5KHz  |  On   |  On   |  Off  |
   |--------------+----------+----------+-------+-------+-------|
   |  1024 x 768  |   70Hz   | 56.5KHz  |  On   |  On   |  On   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                DISLAY MEMORY CONFIGURATION                 |
   |------------------------------------------------------------|
   |           Memory           |              JP6              |
   |----------------------------+-------------------------------|
   |           512KB            |       Pins 2 & 3 closed       |
   |----------------------------+-------------------------------|
   |            1MB             |       Pins 1 & 2 closed       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |         ANALOG MONITOR SENSE SOURCE CONFIGURATION          |
   |------------------------------------------------------------|
   |                Setting                 |        JP4        |
   |----------------------------------------+-------------------|
   |>> | Use monitor ID to drive sense line | Pins 1 & 2 closed |
   |---+------------------------------------+-------------------|
   |   |  Use color detect logic to drive   | Pins 2 & 3 closed |
   |   |             sense line             |                   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                  INTERRUPT CONFIGURATION                   |
   |------------------------------------------------------------|
   |          IRQ 2/9           |              JP2              |
   |----------------------------+-------------------------------|
   |>> |        Disabled        |       Pins 1 & 2 closed       |
   |---+------------------------+-------------------------------|
   |   |        Enabled         |       Pins 2 & 3 closed       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                  ISA BUS SPEED SELECTION                   |
   |------------------------------------------------------------|
   |       Speed        |        JP1        |        JP7        |
   |--------------------+-------------------+-------------------|
   |>> |  6MHz or 8MHz  | Pins 2 & 3 closed | Pins 1 & 2 closed |
   |---+----------------+-------------------+-------------------|
   |   | 10MHz or 12MHz | Pins 1 & 2 closed | Pins 2 & 3 closed |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     VRAM CONFIGURATION                     |
   |------------------------------------------------------------|
   | Memory | Bank 0 (U2, U4, U6, U8) | Bank 1 (U1, U3, U5, U7) |
   |--------+-------------------------+-------------------------|
   | 512KB  |    (4) 256K x 4 ZIP     |          NONE           |
   |--------+-------------------------+-------------------------|
   |  1MB   |    (4) 256K x 4 ZIP     |    (4) 256K x 4 ZIP     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                MISCELLANEOUS TECHNICAL NOTE                |
   |------------------------------------------------------------|
   | The P/N 2150 comes with a 55MHz oscillator on board while  |
   | the P/N 2150D does not.                                    |
   +------------------------------------------------------------+