BOCARAM/AT Memory card Settings and Configuration

Card Type

Memory card

Chipset/Controller

N/A

I/O Options

N/A

Maximum DRAM

4096KB

CONNECTIONS

Purpose

Location

Purpose

Location

Add-On board connector

CN1

Add-On board connector

CN3

Add-On board connector

CN2

Add-On board connector

CN4

Note: CN1 interfaces with CN3, CN2 interfaces with CN4

FACTORY CONFIGURED - DO NOT ALTER

Switch

Position

SW2/7

Pins 2 & 3 closed

SW2/8

Pins 1 & 2 closed

SYSTEM SPEED CONFIGURATION

Speed

JP2

³ 12Mhz

Pins 2 & 3 closed

< 12Mhz

Pins 1 & 2 closed

SYSTEM EXTENDED MEMORY CONFIGURATION

Ext. Memory

Max. Memory

SW1/1

SW1/2

SW1/3

SW1/4

JP1

0MB

N/A

Off

Off

On

Off

Pins 2 & 3 closed

512KB

N/A

Off

Off

On

On

Pins 2 & 3 closed

1.0MB

N/A

Off

On

Off

Off

Pins 2 & 3 closed

1.5MB

N/A

Off

On

Off

On

Pins 2 & 3 closed

2.0MB

N/A

Off

On

On

Off

Pins 2 & 3 closed

2.5MB

N/A

Off

On

On

On

Pins 2 & 3 closed

3.0MB

N/A

On

Off

Off

Off

Pins 2 & 3 closed

3.5MB

3.5MB

On

Off

Off

On

Pins 2 & 3 closed

4.0MB

2.0MB

On

Off

On

Off

Pins 2 & 3 closed

4.5MB

2.5MB

On

Off

On

On

Pins 2 & 3 closed

5.0MB

2.0MB

On

On

Off

Off

Pins 2 & 3 closed

5.5MB

1.5MB

On

On

Off

On

Pins 2 & 3 closed

6.0MB

1.0MB

On

On

On

Off

Pins 2 & 3 closed

6.5MB

512KB

On

On

On

On

Pins 2 & 3 closed

7.0MB

N/A

Off

Off

Off

Off

Pins 1 & 2 closed

7.5MB

N/A

Off

Off

Off

On

Pins 1 & 2 closed

8.0MB

N/A

Off

Off

On

Off

Pins 1 & 2 closed

8.5MB

N/A

Off

Off

On

On

Pins 1 & 2 closed

9.0MB

N/A

Off

On

Off

Off

Pins 1 & 2 closed

9.5MB

N/A

Off

On

Off

On

Pins 1 & 2 closed

10.0MB

N/A

Off

On

On

Off

Pins 1 & 2 closed

10.5MB

N/A

Off

On

On

On

Pins 1 & 2 closed

11.0MB

3.5MB

On

Off

Off

Off

Pins 1 & 2 closed

11.5MB

2.0MB

On

Off

Off

On

Pins 1 & 2 closed

12.0MB

2.5MB

On

Off

On

Off

Pins 1 & 2 closed

12.5MB

2.0MB

On

Off

On

On

Pins 1 & 2 closed

13.0MB

1.5MB

On

On

Off

Off

Pins 1 & 2 closed

13.5MB

1.0MB

On

On

Off

On

Pins 1 & 2 closed

14.0MB

512KB

On

On

On

Off

Pins 1 & 2 closed

Maximum memory is the maximum amount of memory that can be added from the BOCARAM/AT card.

BOCARAM/AT EXTENDED MEMORY CONFIGURATION

Extended Memory

SW1/5

SW1/6

SW1/7

SW1/8

512KB

Off

Off

Off

On

1.0MB

Off

Off

On

Off

1.5MB

Off

Off

On

On

2.0MB

Off

On

Off

Off

2.5MB

Off

On

Off

On

3.0MB

Off

On

On

Off

3.5MB

Off

On

On

On

4.0MB

On

Off

Off

Off

None

Off

Off

Off

Off

I/O PORT ADDRESS SELECTION

Address

SW2/1

SW2/2

SW2/3

SW2/4

»

268h-269h

Off

Off

Off

On

208h-209h

On

Off

Off

Off

218h-219h

Off

On

Off

Off

258h-259h

Off

Off

On

Off

FRAME SEGMENT ADDRESS SELECTION

Address

SW1/5

SW1/6

»

D000h

Off

On

E000h

On

Off

BOCARAM/AT EXTENDED MEMORY CONFIGURATION IN ADDITION TO CONVENTIONAL MEMORY

Memory

SW1/1

SW1/2

SW1/3

SW1/4

SW1/5

SW1/6

SW1/7

SW1/8

JP1

0KB

Off

Off

Off

On

Off

Off

Off

On

2 & 3

512KB

Off

Off

Off

On

Off

Off

On

Off

2 & 3

1.0MB

Off

Off

Off

On

Off

Off

On

On

2 & 3

1.5MB

Off

Off

Off

On

Off

On

Off

Off

2 & 3

2.0MB

Off

Off

Off

On

Off

On

Off

On

2 & 3

2.5MB

Off

Off

Off

On

Off

On

On

Off

2 & 3

3.0MB

Off

Off

Off

On

Off

On

On

On

2 & 3

3.5MB

Off

Off

Off

On

On

Off

Off

Off

2 & 3

Note:Pins designated should be in the closed position.

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

128KB

(16) 4164

None

None

None

512KB

(16) 41256

None

None

None

1MB

(16) 41256

(16) 41256

None

None

1.5MB

(16) 41256

(16) 41256

(16) 41256

None

2MB

(16) 41256

(16) 41256

(16) 41256

(16) 41256

DRAM CONFIGURATION - ADD-ON BOARD

Size

Bank 4

Bank 5

Bank 6

Bank 7

2.5MB

(16) 41256

None

None

None

3MB

(16) 41256

(16) 41256

None

None

3.5MB

(16) 41256

(16) 41256

(16) 41256

None

4MB

(16) 41256

(16) 41256

(16) 41256

(16) 41256