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TC1711

UNIDENTIFIED

TC1711

Data Bus:

16-bit ISA

Size:

Mid-length, full-height card

Hard drives supported:

2 ST506/412 (MFM) drives

Floppy drives supported:

Two 360KB, 720KB, 1.2MB, or 1.44MB drives

CONNECTIONS

Function

Location

34-pin control cable hard drive

CN1

20-pin data connector for hard disk 0

CN2

20-pin data connector for hard disk 1

CN3

34-pin data cable connector-floppy drive

CN4

4-pin connector-drive active LED

CN5

FACTORY SETTINGS

Function

W1

W2

W3

W4

2KB RAM buffer (Hard wired no jumper)

1 & 2

1 & 2

1 & 2

1 & 2

 

32KB RAM buffer (Requires firmware)

2 & 3

2 & 3

2 & 3

2 & 3

Note: Pins designated are in the closed position.

USER CONFIGURABLE SETTINGS

Function

Location

Setting

Hard drive enabled

W5

Pins 2 & 3 closed

 

Hard drive disabled

W5

Pins 1 & 2 closed

Floppy precompensation auto set by data rate.

W6

Pins 2 & 3 closed

 

Floppy precompensation fixed at 125ns

W6

Pins 1 & 2 closed

Floppy drive single speed select

W7

Pins 2 & 3 closed

 

Floppy drive dual speed select

W7

Pins 1 & 2 closed

USER CONFIGURABLE SETTINGS

Function

Location

Setting

Floppy port address 1F0h-1F7h, 3F0h-3F7h

W8

Open

 

Floppy port address 170h-17Fh, 370h-37Fh

W8

Closed

Hard disk port address 3F0h-3FFh

W11

Open

 

Hard disk port address 370h-37Fh

W11

Closed

FLOPPY DRIVE CONFIGURATION

Function

W9

W10

Floppy drive enabled

Closed

Closed

 

Floppy drive disabled

Open

Open