MODULAR CIRCUIT TECHNOLOGY
MCT-VIO+
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Data bus: |
32-bit VL-bus |
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Size: |
Three-quarter length, half-height card |
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Hard drive supported: |
Four IDE(AT) drives |
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Floppy drives supported: |
Four 360KB, 720KB, 1.2MB, 1.44MB, or 2.88MB drives |
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CONNECTIONS | |
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Function |
Location |
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34-pin control cable connector - primary floppy drive |
CN1 |
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25-pin parallel port - external |
CN2 |
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40-pin IDE(AT) Interface connector - primary drive |
CN3 |
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4-pin connector - primary IDE drive active LED |
CN4 |
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10-pin serial port 2 - internal |
CN5 |
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9-pin serial port 1 - external/10-pin serial port 1 internal |
CN6 |
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40-pin IDE (AT) Interface connector - secondary drive |
CN7 |
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4-pin connector - secondary drive active LED |
CN8 |
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34-pin control cable connector - secondary floppy drive |
CN9 |
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16-pin game port - internal |
CN10 |
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USER CONFIGURABLE SETTINGS | |||
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Function |
Location |
Setting | |
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IOCHRDY signal disabled |
J7 |
Open | |
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IOCHRDY signal enabled |
J7 |
Closed | |
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Floppy drive enable |
J8 |
Pins 2 & 3 closed | |
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Floppy drive disable |
J8 |
Pins 1 & 2 closed | |
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Floppy drive normal compatible mode enabled |
J16 |
Pins 2 & 3 closed | |
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Floppy drive enhanced mode enabled |
J16 |
Pins 1 & 2 closed | |
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IDE(AT) interface enabled |
J17 |
Pins 2 & 3 closed | |
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IDE(AT) interface disabled |
J17 |
Pins 1 & 2 closed | |
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Floppy drive I/O address is 3F0h |
J26 |
Pins 2 & 3 closed | |
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Floppy drive I/O address is 370h |
J26 |
pins 1 & 2 closed | |
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Game port enable |
J37 |
Closed | |
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Game port disable |
J37 |
Open | |
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IDE CHANNEL AND ADDRESS CONFIGURATION | |||
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Setting |
J18 |
J19 | |
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Primary and secondary channels enabled |
Pins 1 & 2 closed |
Pins 2 & 3 closed | |
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Primary channel only enabled (170h) |
Pins 2 & 3 closed |
Pins 1 & 2 closed | |
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Primary channel only enabled (1F0h) |
Pins 2 & 3 closed |
Pins 2 & 3 closed | |
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IDE WAIT STATE FOR VL-BUS CLOCK | ||||
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Setting |
J20 |
J21 |
J22 | |
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General setting for all VL bus clocks |
Pins 2 & 3 closed |
Pins 2 & 3 closed |
Pins 2 & 3 closed | |
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<= 33 MHz VL bus clock |
Pins 1 & 2 closed |
Pins 2 & 3 closed |
Pins 1 & 2 closed | |
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> 33 MHz VL bus clock |
Pins 2 & 3 closed |
Pins 1 & 2 closed |
Pins 2 & 3 closed | |
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FLOPPY CHANNEL CONFIGURATION | ||||
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Setting |
J4 |
J5 |
J6 | |
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Primary and secondary channels enabled |
Closed |
Closed |
Closed | |
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Primary channel enabled |
Open |
Open |
Open | |
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Note: The primary and secondary option is invalid with ECP mode. | ||||
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PARALLEL PORT CONFIGURATION | |||
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LPT |
J9 |
J27 | |
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LPT1 (378h) |
Pins 2 & 3 closed |
Pins 2 & 3 closed | |
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LPT2 (278h) |
Pins 2 & 3 closed |
Pins 1 & 2 closed | |
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LPT3 (3BCh) |
Pins 1 & 2 closed |
Pins 1 & 2 closed | |
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Disabled |
Pins 1 & 2 closed |
Pins 2 & 3 closed | |
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SERIAL PORT 1 CONFIGURATION | |||
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COM |
J10 |
J11 | |
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COM1 (3F8h) |
Pins 2 & 3 closed |
Pins 2 & 3 closed | |
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COM2 (2F8h) |
Pins 2 & 3 closed |
Pins 1 & 2 closed | |
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COM3 (3E8h) |
Pins 1 & 2 closed |
Pins 2 & 3 closed | |
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Disabled |
Pins 1 & 2 closed |
Pins 1 & 2 closed | |
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SERIAL PORT 2 CONFIGURATION | |||
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COM |
J12 |
J13 | |
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COM2 (2F8h) |
Pins 2 & 3 closed |
Pins 2 & 3 closed | |
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COM1 (3F8h) |
Pins 1 & 2 closed |
Pins 2 & 3 closed | |
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COM4 (2E8h) |
Pins 2 & 3 closed |
Pins 1 & 2 closed | |
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Disable |
Pins 1 & 2 closed |
Pins 1 & 2 closed | |
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PARALLEL PORT MODE CONFIGURATION | |||
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Mode |
J28 |
J29 | |
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Printer |
Pins 2 & 3 closed |
Pins 2 & 3 closed | |
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EPP & Printer |
Pins 1 & 2 closed |
Pins 2 & 3 closed | |
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ECP |
Pins 2 & 3 closed |
Pins 1 & 2 closed | |
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EPP & ECP |
Pins 1 & 2 closed |
Pins 1 & 2 closed | |
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ECP DMA SELECTION | |||||
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Channel |
J38 |
J39 |
J40 |
J41 |
J42 |
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DMA 1 |
Closed |
Open |
Open |
Closed |
Closed |
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DMA 3 |
Closed |
Closed |
Closed |
Open |
Open |
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Disabled |
Open |
Open |
Open |
Open |
Open |
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SERIAL PORT INTERRUPT SELECTION | ||||||
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Serial Port 1 |
Serial Port 2 |
J32 |
J33 |
J34 |
J35 | |
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No Interrupt |
No Interrupt |
Open |
Open |
Open |
Open | |
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No Interrupt |
IRQ 3 |
Open |
Closed |
Open |
Open | |
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No Interrupt |
IRQ 4 |
Open |
J33/pin 1 to J34/pin 1 |
Open | ||
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No Interrupt |
IRQ 5 |
J32/pin 1 to J33/pin 1 |
Open |
Open | ||
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IRQ 3 |
No Interrupt |
Open |
J33/pin 2 to J34/pin 2 |
Open | ||
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IRQ3 |
IRQ 4 |
Open |
J33/pin 1 to J34/pin 1 J33/pin 2 to J34/pin 2 |
Open | ||
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IRQ3 |
IRQ5 |
J32/pin 1 to J33/pin1 J33/pin 2 to J34/pin 2 |
Open | |||
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IRQ4 |
No Interrupt |
Open |
Open |
Closed |
Open | |
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IRQ4 |
IRQ3 |
Open |
Closed |
Closed |
Open | |
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IRQ4 |
IRQ5 |
J32/pin 1 to J33/pin 1 |
Closed |
Open | ||
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IRQ5 |
No Interrupt |
Open |
Open |
J34/pin 2 to J35/pin 2 | ||
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IRQ5 |
IRQ3 |
Open |
Closed |
J34/pin 2 to J35/pin 2 | ||
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IRQ5 |
IRQ4 |
Open |
J33/pin 1 to J34/pin 1 J34/pin 2 to P35/pin 2 | |||
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PARALLEL PORT INTERRUPT SELECTION | |||
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IRQ |
J35 |
J36 | |
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IRQ5 |
Closed |
Open | |
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IRQ7 |
Open |
Closed | |
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No Interrupt |
Open |
Open | |
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MISCELLANEOUS TECHNICAL NOTES |
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Jumper J35 serves multiple functions so it appears in both serial port and parallel port interrupt selection tables. |