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JE1078

JAMECO ELECTRONIC COMPONENTS

JE1078

Card Type

Multi I/O card

Chipset/Controller

Unidentified

I/O Options

Game port, memory, parallel port, serial port

Maximum DRAM

384KB

CONNECTIONS

Purpose

Location

Purpose

Location

Serial port

J1

Game port

J3

Parallel port

J2

   

SERIAL PORT CONFIGURATION

Port 1 (J1)

JP2

COM1

Pins 2 & 3 closed

 

COM2

Pins 1 & 2 closed

SERIAL PORT NORMAL/FORCED TRUE CONFIGURATION

Port 1

JP4

Normal

Pins 1 & 4, 2 & 5, 3 & 6 closed

 

Forced True

Pins 4 & 7, 5 & 8, 6 & 9 closed

SERIAL PORT INTERRUPT SELECTION

Port 1

JP1

IRQ4

Pins 3 & 4 closed

 

IRQ3

Pins 2 & 4 closed

PARALLEL PORT CONFIGURATION

LPT

IRQ7

JP1/Pins 13 & 14

JP2

1

Enabled

Closed

Pins 5 & 6 closed

 

2

Disabled

Open

Pins 4 & 5 closed

CLOCK/CALENDAR CONFIGURATION

Select

I/O Port Address

JP2

Clock 2

2C0h - 2DFh

Pins 7 & 8 closed

 

Clock 1

340h - 35Fh

Pins 8 & 9 closed

 

Disabled

N/A

Open

CLOCK/CALENDAR INTERRUPT SELECTION

IRQ

JP1

4

Pins 5 & 6 closed

5

Pins 7 & 8 closed

7

Pins 9 & 10 closed

2

Pins 11 & 12 closed

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

Bank 4

Bank 5

SW1/4

SW1/5

SW1/6

64KB

(9) 4164

None

None

None

None

None

Off

Off

Off

128KB

(9) 4164

(9) 4164

None

None

None

None

Off

Off

On

192KB

(9) 4164

(9) 4164

(9) 4164

None

None

None

Off

On

Off

256KB

(9) 4164

(9) 4164

(9) 4164

(9) 4164

None

None

On

Off

Off

320KB

(9) 4164

(9) 4164

(9) 4164

(9) 4164

(9) 4164

None

On

Off

On

384KB

(9) 4164

(9) 4164

(9) 4164

(9) 4164

(9) 4164

(9) 4164

On

On

Off

STARTING MEMORY ADDRESS CONFIGURATION

Starting Address

Max. RAM on JE1078

SW1/1

SW1/2

SW1/3

0KB (:00000)

384KB

Off

Off

Off

64KB (:10000)

384KB

Off

Off

On

128KB (:20000)

384KB

Off

On

Off

192KB (:30000)

384KB

Off

On

On

256KB (:40000)

384KB

On

Off

Off

320KB (:50000)

320KB

On

Off

On

384KB (:60000)

256KB

On

On

Off

448KB (:70000)

192KB

On

On

On

PARITY CONFIGURATION

Setting

JP3

Enabled

Closed

 

Disabled

Open

FACTORY CONFIGURED - DO NOT ALTER

Jumper

Position

JP5

N/A