DATA TECHNOLOGY CORPORATION
DTC5250CX
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Data bus: |
8-bit, ISA |
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Size: |
Full-length, full-height card |
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Hard drive supported: |
Two MFM ST506/412 drives |
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Floppy drives supported: |
Four 360KB, 720KB, 1.2MB, or 1.44MB drives |
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CONNECTIONS | |
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Function |
Location |
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34-pin control cable connector-floppy drive |
J1 |
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34-pin control cable connector-hard drive |
J2 |
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20-pin data cable connector - drive 0 |
J3 |
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20-pin data cable connector - drive 1 |
J4 |
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34-pin floppy drive cable connector - external |
J5 |
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USER CONFIGURABLE SETTINGS | |||
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Function |
Location |
Setting | |
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Floppy drive enabled |
J6/jumper 3 |
open | |
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Floppy drive disabled |
J6/jumper 3 |
closed | |
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Floppy drive B: 96 tracks per inch density enabled |
J6/jumper 6 |
closed | |
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Floppy drive B: 48 tracks per inch density enabled |
J6/jumper 6 |
open | |
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Floppy drive A: 96 tracks per inch density enabled |
J6/jumper 7 |
closed | |
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Floppy drive A: 48 tracks per inch density enabled |
J6/jumper 7 |
open | |
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USER CONFIGURABLE SETTINGS | |||
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Function |
Location |
Setting | |
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Floppy drive port address is 3F0-3F7h |
SW2/switch 1 |
off | |
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Floppy drive port address is 370-377h |
SW2/switch 1 |
on | |
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BIOS enabled |
SW2/switch 3 |
on | |
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BIOS disabled |
SW2/switch 3 |
off | |
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BIOS size 16KB |
SW2/switch 4 |
on | |
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BIOS size 8KB |
SW2/switch 4 |
off | |
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DRIVE TYPE SETTINGS - SW1/SWITCHES 1-8 |
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For settings of SW1 see drive type settings table in document C0061 |
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BIOS ADDRESS | |||||
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Address |
SW2/switch 5 |
SW2/switch 6 |
SW2/switch 7 |
SW2/switch 8 | |
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C800h |
on |
off |
on |
on | |
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D800h |
on |
off |
off |
on | |
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E800h |
on |
off |
on |
off | |
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MISCELLANEOUS TECHNICAL NOTES |
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SW2/switch 2 is not used. If QIT01B1 EPROM is installed, jumper W1 must be closed, jumpers W2 and W3 must be open. The functions of J6/jumpers 1, 2, 4, 5, and 8 are undocumented. |