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MCT-VIO+

MODULAR CIRCUIT TECHNOLOGY

MCT-VIO+

Data bus:

32-bit VL-bus

Size:

Three-quarter length, half-height card

Hard drive supported:

Four IDE(AT) drives

Floppy drives supported:

Four 360KB, 720KB, 1.2MB, 1.44MB, or 2.88MB drives

CONNECTIONS

Function

Location

34-pin control cable connector - primary floppy drive

CN1

25-pin parallel port - external

CN2

40-pin IDE(AT) Interface connector - primary drive

CN3

4-pin connector - primary IDE drive active LED

CN4

10-pin serial port 2 - internal

CN5

9-pin serial port 1 - external/10-pin serial port 1 internal

CN6

40-pin IDE (AT) Interface connector - secondary drive

CN7

4-pin connector - secondary drive active LED

CN8

34-pin control cable connector - secondary floppy drive

CN9

16-pin game port - internal

CN10

USER CONFIGURABLE SETTINGS

Function

Location

Setting

IOCHRDY signal disabled

J7

Open

 

IOCHRDY signal enabled

J7

Closed

Floppy drive enable

J8

Pins 2 & 3 closed

 

Floppy drive disable

J8

Pins 1 & 2 closed

Floppy drive normal compatible mode enabled

J16

Pins 2 & 3 closed

 

Floppy drive enhanced mode enabled

J16

Pins 1 & 2 closed

IDE(AT) interface enabled

J17

Pins 2 & 3 closed

 

IDE(AT) interface disabled

J17

Pins 1 & 2 closed

Floppy drive I/O address is 3F0h

J26

Pins 2 & 3 closed

 

Floppy drive I/O address is 370h

J26

pins 1 & 2 closed

Game port enable

J37

Closed

 

Game port disable

J37

Open

IDE CHANNEL AND ADDRESS CONFIGURATION

Setting

J18

J19

 

Primary and secondary channels enabled

Pins 1 & 2 closed

Pins 2 & 3 closed

 

Primary channel only enabled (170h)

Pins 2 & 3 closed

Pins 1 & 2 closed

Primary channel only enabled (1F0h)

Pins 2 & 3 closed

Pins 2 & 3 closed

IDE WAIT STATE FOR VL-BUS CLOCK

Setting

J20

J21

J22

General setting for all VL bus clocks

Pins 2 & 3 closed

Pins 2 & 3 closed

Pins 2 & 3 closed

 

<= 33 MHz VL bus clock

Pins 1 & 2 closed

Pins 2 & 3 closed

Pins 1 & 2 closed

 

> 33 MHz VL bus clock

Pins 2 & 3 closed

Pins 1 & 2 closed

Pins 2 & 3 closed

FLOPPY CHANNEL CONFIGURATION

Setting

J4

J5

J6

 

Primary and secondary channels enabled

Closed

Closed

Closed

Primary channel enabled

Open

Open

Open

Note: The primary and secondary option is invalid with ECP mode.

PARALLEL PORT CONFIGURATION

LPT

J9

J27

LPT1 (378h)

Pins 2 & 3 closed

Pins 2 & 3 closed

 

LPT2 (278h)

Pins 2 & 3 closed

Pins 1 & 2 closed

 

LPT3 (3BCh)

Pins 1 & 2 closed

Pins 1 & 2 closed

 

Disabled

Pins 1 & 2 closed

Pins 2 & 3 closed

SERIAL PORT 1 CONFIGURATION

COM

J10

J11

COM1 (3F8h)

Pins 2 & 3 closed

Pins 2 & 3 closed

 

COM2 (2F8h)

Pins 2 & 3 closed

Pins 1 & 2 closed

 

COM3 (3E8h)

Pins 1 & 2 closed

Pins 2 & 3 closed

 

Disabled

Pins 1 & 2 closed

Pins 1 & 2 closed

SERIAL PORT 2 CONFIGURATION

COM

J12

J13

COM2 (2F8h)

Pins 2 & 3 closed

Pins 2 & 3 closed

 

COM1 (3F8h)

Pins 1 & 2 closed

Pins 2 & 3 closed

 

COM4 (2E8h)

Pins 2 & 3 closed

Pins 1 & 2 closed

 

Disable

Pins 1 & 2 closed

Pins 1 & 2 closed

PARALLEL PORT MODE CONFIGURATION

Mode

J28

J29

Printer

Pins 2 & 3 closed

Pins 2 & 3 closed

 

EPP & Printer

Pins 1 & 2 closed

Pins 2 & 3 closed

 

ECP

Pins 2 & 3 closed

Pins 1 & 2 closed

 

EPP & ECP

Pins 1 & 2 closed

Pins 1 & 2 closed

ECP DMA SELECTION

Channel

J38

J39

J40

J41

J42

DMA 1

Closed

Open

Open

Closed

Closed

DMA 3

Closed

Closed

Closed

Open

Open

Disabled

Open

Open

Open

Open

Open

SERIAL PORT INTERRUPT SELECTION

Serial Port 1

Serial Port 2

J32

J33

J34

J35

 

No Interrupt

No Interrupt

Open

Open

Open

Open

 

No Interrupt

IRQ 3

Open

Closed

Open

Open

 

No Interrupt

IRQ 4

Open

J33/pin 1 to J34/pin 1

Open

 

No Interrupt

IRQ 5

J32/pin 1 to J33/pin 1

Open

Open

 

IRQ 3

No Interrupt

Open

J33/pin 2 to J34/pin 2

Open

IRQ3

IRQ 4

Open

J33/pin 1 to J34/pin 1

J33/pin 2 to J34/pin 2

Open

 

IRQ3

IRQ5

J32/pin 1 to J33/pin1

J33/pin 2 to J34/pin 2

Open

 

IRQ4

No Interrupt

Open

Open

Closed

Open

 

IRQ4

IRQ3

Open

Closed

Closed

Open

 

IRQ4

IRQ5

J32/pin 1 to J33/pin 1

Closed

Open

 

IRQ5

No Interrupt

Open

Open

J34/pin 2 to J35/pin 2

 

IRQ5

IRQ3

Open

Closed

J34/pin 2 to J35/pin 2

 

IRQ5

IRQ4

Open

J33/pin 1 to J34/pin 1

J34/pin 2 to P35/pin 2

PARALLEL PORT INTERRUPT SELECTION

IRQ

J35

J36

 

IRQ5

Closed

Open

IRQ7

Open

Closed

 

No Interrupt

Open

Open

MISCELLANEOUS TECHNICAL NOTES

Jumper J35 serves multiple functions so it appears in both serial port and parallel port interrupt selection tables.