UNIDENTIFIED

MIO-AT

Data bus:

16-bit, ISA

Size:

Three/quarter-length, full-height card

Hard drive supported:

Two IDE(AT) interface drives

Floppy drives supported:

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

CONNECTIONS

Function

Location

10-pin serial port 2 - internal

CN1

9-pin serial port 1 - external

CN2

25-pin parallel port - external

CN3

40-pin IDE(AT) connector

CN4

34-pin floppy drive connector

CN5

4-pin connector - drive active LED

J1

USER CONFIGURABLE SETTINGS

Function

Location

Setting

IRQ14 delayed

J2/pins 1 & 2

Closed

IRQ14 fixed drive

J2/pins 2 & 3

Closed

Note: J3 enabled/disabled IOCHRDY signal - setting is unidentified.

SERIAL PORTS CONFIGURATION

Port 1

Port 2

J4

J5

J19

J21

COM1(3F8h)

COM2(2F8h)

Open

Closed

Closed

Closed

COM3(3E8h)

COM4(2E8h)

Closed

Open

Closed

Closed

Disabled

Enabled

N/A

N/A

Open

Closed

Enabled

Disabled

N/A

N/A

Closed

Open

Disabled

Disabled

N/A

N/A

Open

Open

 

PARALLEL PORT CONFIGURATION

LPT

J17

J18

J20

J22

LPT2

Closed

Open

Closed

Open

LPT3

Open

Closed

Open

Closed

LPT2 disabled

N/A

N/A

Open

N/A

LPT3 disabled

N/A

N/A

N/A

Open

SERIAL PORT 1 INTERRUPT SELECTION

IRQ

J13

J14

J15

J16

4

Open

Closed

Open

Open

 

2

Open

Open

Open

Closed

 

3

Open

Open

Closed

Open

 

5

Closed

Open

Open

Open

SERIAL PORT 2 INTERRUPT SELECTION

IRQ

J9

J10

J11

J12

3

Open

Closed

Open

Open

 

2

Closed

Open

Open

Open

 

4

Open

Open

Closed

Open

 

5

Open

Open

Open

Closed

PARALLEL PORT INTERRUPT SELECTION

IRQ

J6

J7

J8

5

Open

Closed

Open

 

2

Open

Open

Closed

 

7

Closed

Open

Open