...because we can't all be on the bleeding edge...





CT-6280

TWINHEAD INTERNATIONAL CORPORATION

CT-6280

Card Type

Memory card

Chip Set

Unidentified

Maximum Onboard Memory

640KB

Data Bus

8-bit ISA

USER CONFIGURABLE SETTINGS

Function

Label

Position

Factory configured - do not alter

SW1/7

Unidentified

 

Parity check enabled

SW1/8

On

 

Parity check disabled

SW1/8

Off

DRAM CONFIGURATION

Size

Bank 1

Bank 2

Bank 3

0KB

None

None

None

64KB

64KB

None

None

128KB

64KB

64KB

None

192KB

64KB

64KB

64KB

256KB

256KB

None

None

320KB

256KB

64KB

None

384KB

256KB

64KB

64KB

448KB

256KB

256KB

None

512KB

256KB

256KB

None

576KB

256KB

256KB

64KB

640KB

256KB

256KB

256KB

Note: It is recommended that 4164 or 4125 RAM chips of 150ns or faster be used.

DRAM JUMPER CONFIGURATION

Size

SW1/3

SW1/4

SW1/5

SW1/6

0KB

Off

Off

Off

Off

64KB

On

Off

Off

Off

128KB

Off

On

Off

Off

192KB

On

On

Off

Off

256KB

Off

Off

On

Off

320KB

On

Off

On

Off

384KB

Off

On

On

Off

448KB

On

On

On

Off

512KB

Off

Off

Off

On

576KB

On

Off

Off

On

640KB

Off

On

Off

On

STARTING ADDRESS SELECTION

Address

SW1/1

SW1/2

00000h (0KB)

Off

Off

10000h (64KB)

On

Off

20000h (128KB)

Off

On

40000h (256KB)

On

On