MICRO EQUIPMENT CORPORATION

UN-1086

Data bus:

32-bit VL-Bus

Size:

Full-length, full-height card

Hard drive supported:

Four Enhanced IDE (AT) interface drives

Floppy drives supported:

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

CONNECTIONS

Function

Location

40-pin IDE (AT) interface connector

CN1

40-pin IDE (AT) interface connector

CN2

34-pin control cable connector - floppy drive

CN3

16-pin game port - internal

CN4

10-pin serial port - internal

COMA

10-pin serial port - internal

COMB

2-pin connector - drive active LED

LED1

25-pin parallel port - external

P1

USER CONFIGURABLE SETTINGS

Function

Location

Setting

»

Factory configured - do not alter

W1

N/A

»

Factory configured - do not alter

W2

N/A

»

Factory configured - do not alter

W3

N/A

»

Factory configured - do not alter

W4

N/A

»

Factory configured - do not alter

W5

N/A

 

IOCHRDY 759AF select

W6/pins 2 & 3

closed

 

IOCHRDY ISA select

W6/pins 1 & 2

closed

»

Primary IDE (AT) interface enabled

W8/pins 2 & 3

closed

 

Primary IDE (AT) interface disabled

W8/pins 1& 2

closed

»

Secondary IDE (AT) interface enabled

W9/pins 2 & 3

closed

 

Secondary IDE (AT) interface disabled

W9/pins 1 & 2

closed

»

Speed 50MHz select

W10/pins 2 & 3

closed

 

Speed 33MHz select

W10/ pins 1 & 2

closed

»

Factory configured - do not alter

W13

N/A

»

Floppy drive address is 3F0h-3F7h

W21

open

 

Floppy drive address is 370h-377h

W21

closed

»

Floppy controller enabled

W22

open

 

Floppy controller disabled

W22

closed

»

Parallel port output only select

W23

closed

 

Parallel port bi-directional select

W23

open

»

Game port enabled

W24

open

 

Game port disabled

W24

closed

»

Parallel port address is 378h

W25

open

 

Parallel port address is 278h

W25

closed

»

COMA address is 3F8h

W26

open

 

COMA address is 3E8h

W26

closed

»

COMA enabled

W27

open

 

COMA disabled

W27

closed

»

Parallel port enabled

W28

open

 

Parallel port disabled

W28

closed

»

COMB address is 2F8h

W29

open

 

COMB address is 2E8h

W29

closed

»

COMB enabled

W30

open

 

COMB disabled

W30

closed

IDE (AT) TIMMING & MODE CONFIGURATION

Timming

Mode

W11

W12

240ns

3

pins 1 & 2 closed

pins 1 & 2 closed

400ns

2

pins 1 & 2 closed

pins 2 & 3 closed

500ns

1

pins 2 & 3 closed

pins 1 & 2 closed

600ns

0

pins 2 & 3 closed

pins 2 & 3 closed

HARD DRIVE DMA SELECTION

Channel

W14

W15

W16

W17

W18

W19

5

open

open

closed

open

open

closed

6

open

closed

open

open

closed

open

7

closed

open

open

closed

open

open

SERIAL PORT 1 INTERRUPT SELECTION

IRQ

W36

W37

W38

»

4

closed

open

open

 

3

open

closed

open

 

5

open

open

closed

SERIAL PORT 2 INTERRUPT SELECTION

IRQ

W39

W40

W41

»

3

closed

open

open

 

4

open

closed

open

 

5

open

open

closed

PARALLEL PORT INTERRUPT SELECTION

IRQ

W42

W43

»

7

closed

open

 

5

open

closed