STANDARD MICROSYSTEMS CORPORATION

SMC 4004-PC

Data bus:

8-bit, ISA

Size:

Half-length, full-height card

Hard drive supported:

Two MFM ST506/412 drives

Floppy drives supported:

None

CONNECTIONS

Function

Location

34-pin control cable connector-hard drive

CN1

20-pin data cable connector-drive 0

CN2

20-pin data cable connector-drive 1

CN3

DRIVE 1 CONFIGURATION - SW1

Type

Capacity

Heads

Cylinders

Jumper 6

Jumper 7

Jumper 10

Jumper 11

0

5MB

2

306

closed

closed

closed

closed

1

20MB

8

375

open

closed

closed

closed

2

15MB

6

306

closed

open

closed

closed

3

10MB

4

306

open

open

closed

closed

4*

5MB

2

306

closed

closed

open

closed

5

30MB

5

637

open

closed

open

closed

6

20MB

4

612

closed

open

open

closed

7**

20MB

4

612

open

open

open

closed

Note:*Type 4 is Buffered Seek Version of Type 0.

**Type 7 is a Precomp Version of Type 6.

DRIVE 0 CONFIGURATION - SW1

Type

Capacity

Heads

Cylinders

Jumper 8

Jumper 9

Jumper 12

Jumper 13

0

5MB

2

306

closed

closed

closed

closed

1

20MB

8

375

open

closed

closed

closed

2

15MB

6

306

closed

open

closed

closed

3

10MB

4

306

open

open

closed

closed

4*

5MB

2

306

closed

closed

open

closed

5

30MB

5

637

open

closed

open

closed

6

20MB

4

612

closed

open

open

closed

7**

20MB

4

612

open

open

open

closed

Note:*Type 4 is Buffered Seek Version of Type 0.

**Type 7 is a Precomp Version of Type 6.

x

BIOS ADDRESS

Address

SW1/jumper 1

SW1/jumper 2

SW1/jumper 5

Disabled

N/A

N/A

open

C800h

closed

open

closed

CA00h

open

closed

closed

I/O ADDRESS

Address

SW1/jumper 3

SW1/jumper 4

320h

open

open

324h

open

closed

328h

closed

open

32Ch

closed

closed