DATA TECHNOLOGY CORPORATION
DTC 2278E (400516-89A)
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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: |
Two IDE(AT) or EIDE interface drives |
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Floppy drives supported: |
Two 360KB, 720KB, 1.2MB, 1.44MB drives |
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CONNECTIONS | |
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Function |
Location |
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10-pin serial port 2 - internal |
J2 |
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9-pin serial port 1 - external |
J3 |
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16-pin game port |
J4 |
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34-pin cable connector - floppy drive |
J5 |
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40-pin connector - secondary IDE(AT) interface |
J6 |
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40-pin connector - primary IDE(AT) interface |
J7 |
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4-pin connector - drive active LED |
J8 |
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25-pin parallel port - external |
J9 |
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USER CONFIGURABLE SETTINGS | |||
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Function |
Location |
Setting | |
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Game port enabled |
W14 |
closed | |
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Game port disabled |
W14 |
open | |
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PARALLEL PORT INTERRUPT | |||
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IRQ |
W12 |
W13 | |
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IRQ7 |
open |
closed | |
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IRQ5 |
closed |
open | |
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PARALLEL PORT ADDRESS SELECTION | |||
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LPT |
W1 |
W2 | |
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LPT1 (378h) |
pins 2 & 3 closed |
pins 1 & 2 closed | |
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LPT2 (278h) |
pins 1 & 2 closed |
pins 2 & 3 closed | |
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LPT3 (3BCh) |
pins 2 & 3 closed |
pins 2 & 3 closed | |
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Disabled |
pins 1 & 2 closed |
pins 1 & 2 closed | |
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SERIAL PORT 1 ADDRESS SELECTION | |||
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COM |
W5 |
W6 | |
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COM1 (3F8h) |
pins 1 & 2 closed |
pins 2 & 3 closed | |
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COM3 (3E8h) |
pins 2 & 3 closed |
pins 1 & 2 closed | |
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COM4 (2E8h) |
pins 2 & 3 closed |
pins 2 & 3 closed | |
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Disabled |
pins 1 & 2 closed |
pins 1 & 2 closed | |
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Note: COM1 & COM3 are automatically configured to IRQ4. COM2 & COM4 are automatically configured to IRQ3. | |||
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SERIAL PORT 2 ADDRESS SELECTION | |||
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COM |
W3 |
W4 | |
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COM2 (2F8h) |
pins 1 & 2 closed |
pins 2 & 3 closed | |
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COM3 (3E8h) |
pins 2 & 3 closed |
pins 2 & 3 closed | |
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COM4 (2E8h) |
pins 2 & 3 closed |
pins 1 & 2 closed | |
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Disabled |
pins 1 & 2 closed |
pins 1 & 2 closed | |
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Note: COM1 & COM3 are automatically configured to IRQ4. COM2 & COM4 are automatically configured to IRQ3. | |||
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PARALLEL PORT MODE CONFIGURATION | |||
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Mode |
W7 |
W22 | |
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Printer |
pins 2 & 3 closed |
pins 2 & 3 closed | |
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ECP |
pins 2 & 3 closed |
pins 1 & 2 closed | |
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EPP |
pins 1 & 2 closed |
pins 2 & 3 closed | |
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Note: You must select a DMA channel when using ECP mode. | |||
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DMA SELECTION | ||||
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Channel |
W8 |
W9 |
W10 |
W11 |
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1 |
closed |
open |
closed |
open |
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3 |
open |
closed |
open |
closed |
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MISCELLANEOUS TECHNICAL NOTES |
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The floppy controller in automatically configured: When a cable is attached, it is enabled, when no cable is attached it is disabled. |