
AST RESEARCH, INC.

ADVANTAGE! MEMORY EXPANSION AND I/O BOARD

Card Type                  Multi-I/O card
Chip Set                   Unidentified
Maximum Onboard Memory     3MB DRAM (with daughter board)
I/O Options                Game port, parallel port, serial ports (2),
                           Advantage-Pak memory card
Data Bus                   16-bit ISA
Floppy drives supported    None

[Image]

                                CONNECTIONS

         Function            Label            Function              Label

  Parallel port               J1     Game port                       J4

  Serial port 1               J2     Advantage-Pak connector         J5

  Serial port 2               J3

                        USER CONFIGURABLE SETTINGS

                  Function                     Label         Position

     Serial port 1 CTS input forced true       J7/A          Closed

      Serial port 1 CTS normal                  J7/A           Open

     Serial port 1 CTS normal                  J7/B          Closed

      Serial port 1 CTS input forced true       J7/B           Open

     Serial port 1 DSR input forced true       J7/C          Closed

      Serial port 1 DSR normal                  J7/C           Open

     Serial port 1 DSR normal                  J7/D          Closed

      Serial port 1 DSR input forced true       J7/D           Open

     Serial port 1 DCD input forced true       J7/E          Closed

      Serial port 1 DCD input normal            J7/E           Open

     Serial port 1 DCD normal                  J7/F          Closed

      Serial port 1 DCD forced true             J7/F           Open

     Serial port 2 CTS input forced true       J8/A          Closed

      Serial port 2 CTS normal                  J8/A           Open

     Serial port 2 CTS normal                  J8/B          Closed

      Serial port 2 CTS input forced true       J8/B           Open

     Serial port 2 DSR input forced true       J8/C          Closed

      Serial port 2 DSR normal                  J8/C           Open

     Serial port 2 DSR normal                  J8/D          Closed

      Serial port 2 DSR input forced true       J8/D           Open

                    USER CONFIGURABLE SETTINGS (CONT)

                  Function                      Label        Position

     Serial port 2 DCD input forced true        J8/E         Closed

      Serial port 2 DCD input normal             J8/E          Open

     Serial port 2 DCD normal                   J8/F         Closed

      Serial port 2 DCD forced true              J8/F          Open

     Factory configured - do not alter         SW1/6           N/A

     Factory configured - do not alter         SW1/7           N/A

      Parity enabled                            SW1/8           On

      Parity Disabled                           SW1/8           Off

      Game port enabled                         SW2/6           On

      Game port disabled                        SW2/6           Off

     Factory configured - do not alter         SW2/7           N/A

     Factory configured - do not alter         SW2/8           N/A

     Factory configured - do not alter         SW3/8           N/A

                               DRAM SWITCH CONFIGURATION

  Bank0   Bank1  Bank2   Bank3   Bank4   Bank5   SW1/1   SW1/2   SW1/3   SW1/4  SW1/5

  128KB   None   None    None    None    None    Off     Off     Off     Off     On

  512KB   None   None    None    None    None    Off     Off      On      On     On

  128KB   128KB  None    None    None    None    Off     Off     Off      On     Off

  128KB   512KB  None    None    None    None     On     Off     Off     Off     Off

  512KB   512KB  None    None    None    None    Off      On     Off     Off     Off

  128KB   128KB  128KB   None    None    None    Off     Off     Off      On     On

  128KB   128KB  512KB   None    None    None     On     Off      On     Off     On

  128KB   512KB  512KB   None    None    None     On     Off     Off     Off     On

  512KB   512KB  512KB   None    None    None    Off      On     Off     Off     On

  128KB   128KB  128KB   128KB   None    None    Off     Off      On     Off     Off

  128KB   128KB  128KB   512KB   None    None     On      On     Off     Off     On

  128KB   128KB  512KB   512KB   None    None     On     Off      On      On     Off

  128KB   512KB  512KB   512KB   None    None     On     Off     Off      On     Off

  512KB   512KB  512KB   512KB   None    None    Off      On     Off      On     Off

  128KB   128KB  128KB   128KB   128KB   None    Off     Off      On     Off     On

  128KB   128KB  128KB   128KB   512KB   None     On      On      On     Off     Off

  128KB   128KB  128KB   512KB   512KB   None     On      On     Off      On     Off

  128KB   128KB  512KB   512KB   512KB   None     On     Off      On      On     On

  128KB   512KB  512KB   512KB   512KB   None     On     Off     Off      On     On

  512KB   512KB  512KB   512KB   512KB   None    Off      On     Off      On     On

  128KB   128KB  128KB   128KB   128KB   128KB   Off     Off      On      On     Off

  128KB   128KB  128KB   128KB   128KB   512KB    On      On      On      On     Off

  128KB   128KB  128KB   128KB   512KB   512KB    On      On      On     Off     On

  128KB   128KB  128KB   512KB   512KB   512KB    On      On     Off      On     On

  128KB   128KB  512KB   512KB   512KB   512KB    On      On     Off     Off     Off

  128KB   512KB  512KB   512KB   512KB   512KB    On     Off      On     Off     Off

  512KB   512KB  512KB   512KB   512KB   512KB   Off      On      On     Off     Off

                     SPLIT MEMORY ADDRESSING SELECTION

  Address     SW3/1    SW3/2    SW3/3    SW3/4    SW3/5    SW3/6    SW3/7

  256KB AT     On       On       On       On       On       Off      On

  512KB AT     On       On       On       On       Off      On       On

  512KB AT     On       On       On       Off      On       On       On

  612KB AT     On       On       On       Off      On       On       On

         SERIAL PORT(S) ADDRESS SWITCH SELECTION (ONE SERIAL PORT)

    Number of Serial         SW2/1            SW2/2            SW2/3
      ports in AT

           0                   On              Off              Off

           1                  Off              On               Off

           2                  Off              Off              Off

            SERIAL PORT(S) ADDRESS SELECTION (TWO SERIAL PORTS)

   Serial port 1    Serial port 2      J6/A        J6/B          J6/C
     Setting           Setting

   COM1 (3F8h)        Disabled         Open        Open         Closed

   COM2 (2F8h)        Disabled         Open       Closed         Open

     Disabled         Disabled         Open        Open          Open

        SERIAL PORT(S) ADDRESS SWITCH SELECTION (TWO SERIAL PORTS)

    Number of Serial         SW2/1            SW2/2            SW2/3
      ports in AT

           0                  On               Off              On

           1                  Off              On               Off

           2                  Off              Off              Off

            SERIAL PORT(S) ADDRESS SELECTION (ONE SERIAL PORT)

  Serial port 1    Serial port 2      J6/A          J6/B         J6/C
     Setting          Setting

   COM1 (3F8h)       Disabled        Closed         Open        Closed

   COM2 (2F8h)       Disabled         Open         Closed        Open

    Disabled         Disabled         Open          Open         Open

     PARALLEL PORT ADDRESS SWITCH SELECTION (COLOR-TYPE DISPLAY CARD)

  Number of Parallel ports          SW2/4                   SW2/5
           in AT

             0                        On                     Off

             1                       Off                     On

             2                       Off                     Off

             3                       Off                     Off

  PARALLEL PORT ADDRESS SELECTION (COLOR-TYPE DISPLAY CARD)

        IRQ                 J6/D                 J6/E

        LPT1                Open                Closed

        LPT2               Closed                Open

      Disabled              Open                 Open

      Disabled              Open                 Open

   PARALLEL PORT ADDRESS SWITCH SELECTION (MONOCHROME-TYPE DISPLAY CARD)

  Number of Parallel ports          SW2/4                   SW2/5
           in AT

             1                       Off                     On

             2                       Off                     Off

             3                       Off                     Off

  PARALLEL PORT ADDRESS SELECTION (MONOCHROME-TYPE DISPLAY CARD)

         IRQ                   J6/D                  J6/E

         LPT2                  Open                 Closed

         LPT3                 Closed                 Open

       Disabled                Open                  Open

       Disabled                Open                  Open

AST RESEARCH, INC.

ADVANTAGE-PAK

[Image]

                     CONNECTIONS

         Function                    Label

  Advantage-Pak connector             CN1

                         TOTAL DRAM CONFIGURATION

    Size       Bank 0    Bank 1    Bank 2     Bank 3    Bank 4    Bank 5

    128KB       (18)      None      None       None      None      None
                4164

    256KB       (18)       (18)     None       None      None      None
                4164      4164

    384KB       (18)       (18)      (18)      None      None      None
                4164      4164      4164

  512KB(A)      (18)       (18)      (18)      (18)      None      None
                4164      4164      4164       4164

  512KB(B)      (18)      None      None       None      None      None
               41256

  640KB(A)      (18)       (18)     None       None      None      None
                4164      41256

  640KB(B)      (18)       (18)      (18)      (18)      (18)      None
                4164      4164      4164       4164      4164

  768KB(A)      (18)       (18)      (18)      None      None      None
                4164      4164      41256

  768KB(B)      (18)       (18)      (18)      (18)      (18)       (18)
                4164      4164      4164       4164      4164      4164

    896KB       (18)       (18)      (18)      (18)      None      None
                4164      4164      4164      41256

  1024KB(A)     (18)       (18)     None       None      None      None
               41256      41256

  1024KB(B)     (18)       (18)      (18)      (18)      (18)      None
                4164      4164      4164       4164     41256

  1152KB(A)     (18)       (18)      (18)      None      None      None
                4164      41256     41256

  1152KB(B)     (18)       (18)      (18)      (18)      (18)       (18)
                4164      4164      4164       4164      4164      41256

   1536KB       (18)       (18)      (18)      None      None      None
               41256      41256     41256

   1664KB       (18)       (18)      (18)      (18)      None      None
                4164      41256     41256     41256

   2048KB       (18)       (18)      (18)      (18)      None      None
               41256      41256     41256     41256

   2176KB       (18)       (18)      (18)      (18)      (18)      None
                4164      41256     41256     41256     41256

   2560KB       (18)       (18)      (18)      (18)      (18)      None
               41256      41256     41256     41256     41256

   2688KB       (18)       (18)      (18)      (18)      (18)       (18)
                4164      41256     41256     41256     41256      41256

   3072KB       (18)       (18)      (18)      (18)      (18)       (18)
               41256      41256     41256     41256     41256      41256

                       MISCELLANEOUS TECHNICAL NOTE

            Note: CN1 is located on the back side of the daughter board.

