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MAXIMIZER

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

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 closed

Open

Open

Open

 

IRQ3

Open

Pins 1 & 2 closed

Open

Open

IRQ4

Open

Open

Pins 1 & 2 closed

Open

 

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 closed

Open

Open

Open

IRQ3

Open

Pins 2 & 3 closed

Open

Open

 

IRQ4

Open

Open

Pins 2 & 3 closed

Open

 

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 closed

Open

 

3E8h (COM3:)

Open

Pins 1 & 2 closed

Open

Open

 

2E8h (COM4:)

Pins 1 & 2 closed

Open

Open

Open

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 closed

Open

 

3E8h (COM3:)

Open

Pins 2 & 3 closed

Open

Open

 

2E8h (COM4:)

Pins 2 & 3 closed

Open

Open

Open