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Apparat 256K Memory Board (Rev. C)

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Jumper Settings

Card Type

Memory

Maximum Onboard Memory

256KB DRAM

I/O Options

N/A

Data Bus

8-bit ISA

52858-1.png

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

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

DRAM SWITCH CONFIGURATION

Size

SWA/5

SWA/6

SWA/7

SWA/8

64KB

On

Off

Off

Off

128KB

On

On

Off

Off

192KB

On

On

On

Off

256KB

On

On

On

On

STARTING MEMORY ADDRESS SELECTION

Setting

SWA/1

SWA/2

SWA/3

SWA/4

0KB

Off

Off

Off

Off

64KB

Off

Off

Off

On

128KB

Off

Off

On

Off

192KB

Off

Off

On

On

256KB

Off

On

Off

Off

320KB

Off

On

Off

On

384KB

Off

On

On

Off

448KB

Off

On

On

On

512KB

On

Off

Off

Off

576KB

On

Off

Off

On

640KB

On

Off

On

Off

704KB

On

Off

On

On

768KB

On

On

Off

Off

832KB

On

On

Off

On

896KB

On

On

On

Off

960KB

On

On

On

On

See Also