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





HFDC

AUVA COMPUTER, INC.

HFDC

Data bus:

16-bit ISA

Size:

Three-quarter length, full-height card

Hard drive supported:

Two MFM ST-506/412 drives

Floppy drives supported:

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

CONNECTIONS

Function

Location

20-pin data cable connector - drive 1

J1

20-pin data cable connector - drive 0

J2

34-pin control cable connector - hard drive

J3

34-pin control cable connector - floppy drive

J4

4-pin connector - drive active LED

JP1

USER CONFIGURABLE SETTINGS

Function

Location

Setting

Floppy drive primary address is 3F2h

J5

pins 2 & 3 closed

 

Floppy drive secondary address is 372h

J5

pins 1 & 2 closed

Hard drive primary address is 1F0h

J6

pins 2 & 3 closed

 

Hard drive secondary address is 170h

J6

pins 1 & 2 closed

Floppy drive dual speed disabled

JP2

open

 

Floppy drive dual speed enabled

JP2

closed

Floppy precompensate is ±

JP3

open

 

Floppy precompensate is 187ns

JP3

closed