UNIDENTIFIED

TVGA 8902/4/8-DRAM

Card Type                   Video Card
Video Chip Set              Unidentified
Maximum Video Memory        1MB DRAM
Video Types Supported       VGA
Highest Resolution          1024 x 768
Supported
Data Bus                    16-bit ISA

[Image]

                                CONNECTIONS

           Function             Label           Function           Label

  15-pin analog video port       CN1     9-pin TTL Port             CN3

  Feature connector              CN2
  (VGA/VESA)

                        USER CONFIGURABLE SETTINGS

                   Function                      Label        Position

  »  Unidentified                                SW1/4           On

                            BUS SIZE DETECTION

                 Setting                                 J2

  »               Autodetect                      Pins 2 & 3 Closed

              Standard Interface                  Pins 1 & 2 Closed

  Note: Orientation of J2 may vary. Check pin numbers on card.

                            BUS SIZE SELECTION

                 Setting                               SW1/6

  »                 16-bit                              Off

                    8-bit                                On

                            SCAN RATE SELECTION

                   Rate                                SW1/3

  »             Less than 48Mhz                          On

                    48-49Mhz                            Off

                              MONITOR SELECT

         Setting                   SW1/1                   SW1/2

           VGA                      On                       On

           EGA                      Off                      On

           CGA                      On                      Off

      MDA/Hercules                  Off                     Off

  Note: SW1/1 & 2 affects 9-pin TTL connection. Not present on all cards.

                                 INTERRUPT

                  IRQ 9                                 J1

  »                Disabled                      Pins 2 & 3 Closed

                   Enabled                       Pins 1 & 2 Closed

                              ADDRESS DECODE

                 Setting                               SW1/5

  »           Fast address decode                       Off

              Slow address decode                        On

                        DRAM CONFIGURATION

      Size           Bank 0            Bank 1          Bank 2

     256KB        (2) 128KB x 4         None            None

     512KB        (2) 128KB x 4    (2) 128KB x 4        None

      1MB         (2) 128KB x 4    (2) 128KB x 4    (4) 128KB x 4

                     VIDEO MEMORY JUMPER CONFIGURATION

      Size               JP1               JP2                 J3

      256KB             Open             Closed         Pins 1 & 2, 4 & 5
                                                             closed

      512KB             Open             Closed         Pins 1 & 4, 2 & 5
                                                             closed

       1MB             Closed             Open          Pins 2 &3, 5 & 6
                                                             closed

  Note: JP1 &2 are jumper blocks, number of pins unidentified. Not
  present on all cards. Orientation of J3 may vary.

                                CLOCK SPEED

                 Setting                                 J4

  »             40Mhz(2 DRAM)                    Pins 2 & 3 closed

                48Mhz(4/8 DRAM)                  Pins 1 & 2 closed

  Note: Exact location of J4 unidentified. Not present on all cards