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# SIGMA DESIGNS, INC.
MAXIMIZER
Card Type Multi-I/O
Chipset Unidentified
Maximum Onboard 384KB DRAM
Memory
I/O Options Clock/calendar, game port, parallel port,
serial ports (2)
Data Bus 8-bit ISA
IMG IMG 1
+------------------------------------------------------------+
| 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 (CON’T) |
|------------------------------------------------------------|
| 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 | None | None | None |
| | 1 | | | |
|---------+------------+------------+------------+-----------|
| 128KB | (9) 64K x | (9) 64K x | None | None |
| | 1 | 1 | | |
|---------+------------+------------+------------+-----------|
| 192KB | (9) 64K x | (9) 64K x | (9) 64K x | None |
| | 1 | 1 | 1 | |
|---------+------------+------------+------------+-----------|
| 256KB | (9) 64K x | (9) 64K x | (9) 64K x | (9) 64K x |
| | 1 | 1 | 1 | 1 |
|---------+------------+------------+------------+-----------|
| 320KB | (9) 64K x | (9) 64K x | (9) 64K x | (9) 64K x |
| | 1 | 1 | 1 | 1 |
|---------+------------+------------+------------+-----------|
| 384KB | (9) 64K x | (9) 64K x | (9) 64K x | (9) 64K x |
| | 1 | 1 | 1 | 1 |
|---------+------------+------------+------------+-----------|
| 512KB | (9) 64K x | (9) 64K x | (9) 64K x | (9) 64K x |
| | 1 | 1 | 1 | 1 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| 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 | None | None | None |
| | 1 | | | |
|----------+------------+------------+-----------+-----------|
| 384KB | (9) 64K x | (9) 64K x | None | None |
| | 1 | 1 | | |
|----------+------------+------------+-----------+-----------|
| 512KB | (9) 64K x | (9) 64K x | (9) 64K x | (9) 64K x |
| | 1 | 1 | 1 | 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 & | Open |
| | | | | 2 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 & | Open |
| | | | | 3 closed | |
|---+------+------------+------------+-----------+-----------|
| | IRQ5 | Open | Open | Open | Pins 2 & |
| | | | | | 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT 1 ADDRESS SELECTION |
|------------------------------------------------------------|
| Setting | JB2/A | JB2/B | JB2/C | JB2/D |
|--------------+------------+----------+----------+----------|
| » | 3F8h | Open | Open | Open | Pins 1 & |
| | (COM1:) | | | | 2 closed |
|---+----------+------------+----------+----------+----------|
| | 2F8h | Open | Open | Pins 1 & | Open |
| | (COM2:) | | | 2 closed | |
|---+----------+------------+----------+----------+----------|
| | 3E8h | Open | Pins 1 & | Open | Open |
| | (COM3:) | | 2 closed | | |
|---+----------+------------+----------+----------+----------|
| | 2E8h | Pins 1 & 2 | Open | Open | Open |
| | (COM4:) | closed | | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT 2 ADDRESS SELECTION |
|------------------------------------------------------------|
| Setting | JB2/A | JB2/B | JB2/C | JB2/D |
|--------------+------------+----------+----------+----------|
| | 3F8h | Open | Open | Open | Pins 2 & |
| | (COM1:) | | | | 3 closed |
|---+----------+------------+----------+----------+----------|
| » | 2F8h | Open | Open | Pins 2 & | Open |
| | (COM2:) | | | 3 closed | |
|---+----------+------------+----------+----------+----------|
| | 3E8h | Open | Pins 2 & | Open | Open |
| | (COM3:) | | 3 closed | | |
|---+----------+------------+----------+----------+----------|
| | 2E8h | Pins 2 & 3 | Open | Open | Open |
| | (COM4:) | closed | | | |
+------------------------------------------------------------+