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Articles / TULARC / PC info / Hard Disk/Floppy Controller / E-H / |  |
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EV-341 Hard Disk/Floppy Controller Settings and Configuration |
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EVEREX SYSTEMS, INC.
EV-341
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Data bus: 16-bit, ISA
Size: Full-length, full-height card
Hard drives supported: Two MFM ST506/412 drives
Floppy drives supported: Two 360KB, 720KB, 1.2MB, or 1.44MB
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CONNECTIONS | |
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Function |
Location |
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34-pin control cable connector-hard drive |
J1 |
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20-pin data cable connector-drive 0 |
J2 |
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20-pin data cable connector-drive 1 |
J3 |
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34-pin control cable connector-floppy drive |
J4 |
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4-pin connector-drive active LED |
J5 |
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USER CONFIGURABLE SETTINGS | |||
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Function |
Location |
Setting | |
| » |
Hard drive port address is 1F0-1F7h |
W1/jumper 1 |
open |
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Hard drive port address is 170-177h |
W1/jumper 1 |
closed | |
| » |
Floppy drive port address is 3F2-3F7h |
W1/jumper 2 |
open |
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Floppy drive port address is 372-377h |
W1/jumper 2 |
closed | |
| » |
Floppy drive enabled on DOS system |
W1/jumper 3
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open
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Floppy drive disabled on DOS system |
W1/jumper 3 W3 |
closed
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| » |
Floppy drive enabled on OS/2 system |
W2 |
pins 1 & 2 closed |
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Floppy drive disabled on OS/2 system |
W2 |
pins 2 & 3 closed | |
| » |
Factory configured - do not alter |
W4 |
pins 1 & 2 closed |
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MISCELLANEOUS TECHNICAL NOTES |
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The EV-341 comes standard with 128KB of cache memory. To upgrade to 512KB, populate the DRAM banks with 256Kx4 100ns DRAMs. |
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