DATA TECHNOLOGY CORPORATION DTC2278EB (400523-89A) Card Type Hard drive controller card Hard drives supported Four IDE(AT) interface drives Floppy drives supported Two 360KB, 720KB, 1.2MB, 1.44MB drives Data-bus 32-bit VESA Local Bus Size Full-length, half-height card [Image] CONNECTIONS Function Label Function Label 25-pin parallel port - J1 34-pin control cable J5 external connector - floppy drive 10-pin serial port 2 - J2 40-pin IDE(AT) J6 internal secondary interface connector 9-pin serial port 1 - J3 40-pin IDE(AT) primary J7 external interface connector 16-pin game port - J4 Drive active LED J8 internal USER CONFIGURABLE CONNECTIONS Function Location Setting » Game port enabled W29 Closed Game port disabled W29 Open » Floppy drive interface enabled W30 Pins 1 & 2 closed Floppy drive interface disabled W30 Pins 2 & 3 closed SERIAL PORT 1 ADDRESS SELECTION Setting W22 W23 » COM1 (3F8h) Pins 1 & 2 closed Pins 1 & 2 closed COM2 (2F8h) Pins 1 & 2 closed Pins 2 & 3 closed COM3 (3E8h) Pins 2 & 3 closed Pins 1 & 2 closed Disabled Pins 2 & 3 closed Pins 2 & 3 closed SERIAL PORT 2 ADDRESS SELECTION Setting W20 W21 COM1 (3F8h) Pins 1 & 2 closed Pins 2 & 3 closed COM2 (2F8h) Pins 1 & 2 closed Pins 1 & 2 closed COM4 (2E8h) Pins 2 & 3 closed Pins 1 & 2 closed Disabled Pins 2 & 3 closed Pins 2 & 3 closed PARALLEL PORT ADDRESS SELECTION Setting W18 W19 LPT1 (378h) Pins 2 & 3 closed Pins 1 & 2 closed LPT2 (278h) Pins 1 & 2 closed Pins 1 & 2 closed LPT3 (3BCh) Pins 1 & 2 closed Pins 2 & 3 closed Disabled Pins 2 & 3 closed Pins 2 & 3 closed SERIAL PORT 1 INTERRUPT SELECTION IRQ W15 W16 W17 IRQ3 Open Closed Open » IRQ4 Open Open Closed IRQ5 Closed Open Open SERIAL PORT 2 INTERRUPT SELECTION IRQ W12 W13 W14 » IRQ3 Open Open Closed IRQ4 Open Closed Open IRQ5 Closed Open Open PARALLEL PORT INTERRUPT SELECTION IRQ W10 W11 IRQ5 Closed Open » IRQ7 Open Closed BIOS ADDRESS SELECTION Address W7 W8 W24 C8000h-CBFFFh Pins 2 & 3 Pins 2 & 3 Closed closed closed CC000h-CFFFFh Pins 2 & 3 Pins 1 & 2 Closed closed closed D8000h-DBFFFh Pins 1 & 2 Pins 2 & 3 Closed closed closed DC000h-DFFFFh Pins 1 & 2 Pins 1 & 2 Closed closed closed Disabled Open Open Open DMA CHANNEL SELECTION Channel W1 W2 W3 W4 1 Closed Open Closed Open 3 Open Closed Open Closed PARALLEL PORT MODE SELECTION Setting W9 W25 W31 Bidirectional /ECP Pins 2 & 3 Pins 1 & 2 Closed closed closed Bidirectional /EPP Pins 1 & 2 Pins 2 & 3 Open closed closed Uni-directional Pins 2 & 3 Pins 2 & 3 Open closed closed EPP & ECP Pins 1 & 2 Pins 1 & 2 Closed closed closed