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 [Image] CONNECTIONS Function Location 34-pin control cable connector - primary CN1 floppy drive 25-pin parallel port - external CN2 40-pin IDE(AT) Interface connector - primary CN3 drive 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 CN6 port 1 internal 40-pin IDE (AT) Interface connector - CN7 secondary drive 4-pin connector - secondary drive active LED CN8 34-pin control cable connector - secondary CN9 floppy drive 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 J16 Pins 2 & 3 mode enabled closed Floppy drive enhanced mode J16 Pins 1 & 2 enabled 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 J26 Pins 2 & 3 3F0h closed Floppy drive I/O address is J26 pins 1 & 2 370h closed » Game port enable J37 Closed Game port disable J37 Open IDE CHANNEL AND ADDRESS CONFIGURATION Setting J18 J19 Primary and secondary Pins 1 & 2 closed Pins 2 & 3 closed channels enabled Primary channel only Pins 2 & 3 closed Pins 1 & 2 closed enabled (170h) » Primary channel only Pins 2 & 3 closed Pins 2 & 3 closed enabled (1F0h) IDE WAIT STATE FOR VL-BUS CLOCK Setting J20 J21 J22 » General setting for Pins 2 & 3 Pins 2 & 3 Pins 2 & 3 all VL bus clocks closed closed closed <= 33 MHz VL bus Pins 1 & 2 Pins 2 & 3 Pins 1 & 2 clock closed closed closed > 33 MHz VL bus Pins 2 & 3 Pins 1 & 2 Pins 2 & 3 clock closed closed closed FLOPPY CHANNEL CONFIGURATION Setting J4 J5 J6 Primary and secondary Closed Closed Closed channels enabled » 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 J32 J33 J34 J35 Port 2 No No Open Open Open Open Interrupt Interrupt No IRQ 3 Open Closed Open Open Interrupt No IRQ 4 Open J33/pin 1 Open Interrupt to J34/pin 1 No IRQ 5 J32/pin 1 Open Open Interrupt to J33/pin 1 IRQ 3 No Open J33/pin 2 Open Interrupt to J34/pin 2 » IRQ3 IRQ 4 Open J33/pin 1 Open to J34/pin 1 J33/pin 2 to J34/pin 2 IRQ3 IRQ5 J32/pin 1 Open to J33/pin1 J33/pin 2 to J34/pin 2 IRQ4 No Open Open Closed Open Interrupt IRQ4 IRQ3 Open Closed Closed Open IRQ4 IRQ5 J32/pin 1 Closed Open to J33/pin 1 IRQ5 No Open Open J34/pin Interrupt 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.