
SIGMA DESIGNS, INC.

MAXIMIZER

Card Type              Multi-I/O
Chipset                Unidentified
Maximum Onboard Memory 384KB DRAM
I/O Options            Clock/calendar, game port, parallel port, serial
                       ports (2)
Data Bus               8-bit ISA

[Image]

                                CONNECTIONS

          Function             Label           Function             Label

  Serial port 1                 J1     Game port                     J3

  Serial port 2                 J2     Parallel port                 J4

                        USER CONFIGURABLE SETTINGS

                   Setting                      Label        Position

     Factory configured - do not alter          JB3       Pins 2 & 3, 4
                                                            & 5 closed

     Factory configured - do not alter          JB4         Pins 2 & 3
                                                              closed

     Factory configured - do not alter          JB5         Pins 2 & 3
                                                              closed

     Factory configured - do not alter          JB6         Pins 2 & 3
                                                              closed

     Factory configured - do not alter          JB7       Pins 2 & 3, 4
                                                            & 5 closed

     Factory configured - do not alter          JB8         Pins 2 & 3
                                                              closed

     Factory configured - do not alter          JB9         Pins 2 & 3
                                                              closed

     Factory configured - do not alter          JB10        Pins 2 & 3
                                                              closed

     Clock/calendar address set to 377h         JB11        Pins 2 & 3
                                                              closed

      Clock/calendar address set to 277h         JB11        Pins 1 & 2
                                                              closed

     Parallel port address set to 378h          JB12        Pins 2 & 3
                                                              closed

      Parallel port address set to 278h          JB12        Pins 1 & 2
                                                              closed

     Parallel port is unidirectional            JB13        Pins 2 & 3
                                                              closed

      Parallel port is bidirectional             JB13        Pins 1 & 2
                                                              closed

     Game port enabled                         SW1/4           On

      Game port disabled                        SW1/4           Off

                    USER CONFIGURABLE SETTINGS (CONT)

                   Setting                      Label        Position

      Parallel port enabled                    SW1/5           On

       Parallel port disabled                   SW1/5           Off

      Clock/calendar enabled                   SW1/6           On

       Clock/calendar disabled                  SW1/6           Off

      Serial port 2 enabled                    SW1/7           On

       Serial port 2 disabled                   SW1/7           Off

      Serial port 1 enabled                    SW1/8           On

       Serial port 1 disabled                   SW1/8           Off

      Parity checking on memory enabled        SW2/4           On

       Parity checking on memory disabled       SW2/4           Off

            Note:Jumpers JB3 through JB10 are used for shorting or
            swapping serial port signals. JB3 through JB6 are for port 1,
            and JB7 through JB10 are for port 2. Defaults shown are for
            standard DTE setting. Other configurations are unidentified.

     STARTING MEMORY ADDRESS SELECTION

  Setting    SW1/1      SW1/2      SW1/3

    0KB       Off        Off        Off

   64KB        On        Off        Off

   128KB      Off         On        Off

   192KB       On         On        Off

   256KB      Off        Off        On

   320KB       On        Off        On

   384KB      Off         On        On

   448KB       On         On        On

                            DRAM CONFIGURATION

    Setting        Bank 0         Bank 1        Bank 2         Bank 3

      0KB           None           None          None           None

     64KB       (9) 64K x 1        None          None           None

     128KB      (9) 64K x 1    (9) 64K x 1       None           None

     192KB      (9) 64K x 1    (9) 64K x 1    (9) 64K x 1       None

     256KB      (9) 64K x 1    (9) 64K x 1    (9) 64K x 1    (9) 64K x 1

     320KB      (9) 64K x 1    (9) 64K x 1    (9) 64K x 1    (9) 64K x 1

     384KB      (9) 64K x 1    (9) 64K x 1    (9) 64K x 1    (9) 64K x 1

     512KB      (9) 64K x 1    (9) 64K x 1    (9) 64K x 1    (9) 64K x 1

                        DRAM CONFIGURATION (CONT)

    Setting        Bank 4         Bank 5        Bank 6         Bank 7

      0KB           None           None          None           None

     64KB           None           None          None           None

     128KB          None           None          None           None

     192KB          None           None          None           None

     256KB          None           None          None           None

     320KB      (9) 64K x 1        None          None           None

     384KB      (9) 64K x 1    (9) 64K x 1       None           None

     512KB      (9) 64K x 1    (9) 64K x 1    (9) 64K x 1    (9) 64K x 1

            Note:The locations of banks 6 and 7 are unidentified.

         DRAM SWITCH CONFIGURATION

  Setting    SW2/1      SW2/2      SW2/3

    0KB       Off        Off        Off

   64KB        On        Off        Off

   128KB      Off         On        Off

   192KB       On         On        Off

   256KB      Off        Off        On

   320KB       On        Off        On

   384KB      Off         On        On

   512KB       On         On        On

                     SERIAL PORT 1 INTERRUPT SELECTION

    Setting          JB1/A         JB1/B          JB1/C         JB1/D

        IRQ2       Pins 1 & 2       Open          Open           Open
                    closed

        IRQ3         Open        Pins 1 & 2       Open           Open
                                   closed

       IRQ4         Open           Open        Pins 1 & 2       Open
                                                 closed

        IRQ5         Open           Open          Open        Pins 1 & 2
                                                                closed

                     SERIAL PORT 2 INTERRUPT SELECTION

    Setting          JB1/A         JB1/B          JB1/C         JB1/D

        IRQ2       Pins 2 & 3       Open          Open           Open
                    closed

       IRQ3         Open        Pins 2 & 3       Open           Open
                                   closed

        IRQ4         Open           Open        Pins 2 & 3       Open
                                                 closed

        IRQ5         Open           Open          Open        Pins 2 & 3
                                                                closed

                      SERIAL PORT 1 ADDRESS SELECTION

      Setting          JB2/A         JB2/B         JB2/C         JB2/D

     3F8h (COM1:)      Open          Open         Open        Pins 1 & 2
                                                                closed

      2F8h (COM2:)      Open          Open       Pins 1 & 2      Open
                                                  closed

      3E8h (COM3:)      Open       Pins 1 & 2      Open          Open
                                     closed

      2E8h (COM4:)   Pins 1 & 2       Open         Open          Open
                       closed

                      SERIAL PORT 2 ADDRESS SELECTION

      Setting          JB2/A         JB2/B         JB2/C         JB2/D

      3F8h (COM1:)      Open          Open         Open        Pins 2 & 3
                                                                closed

     2F8h (COM2:)      Open          Open       Pins 2 & 3      Open
                                                  closed

      3E8h (COM3:)      Open       Pins 2 & 3      Open          Open
                                     closed

      2E8h (COM4:)   Pins 2 & 3       Open         Open          Open
                       closed

