EV-341 Hard Disk/Floppy Controller Settings and Configuration
EVEREX SYSTEMS, INC.
EV-341
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
CONNECTIONS | |
Function | Location |
34-pin control cable connector-hard drive | J1 |
20-pin data cable connector-drive 0 | J2 |
20-pin data cable connector-drive 1 | J3 |
34-pin control cable connector-floppy drive | J4 |
4-pin connector-drive active LED | J5 |
USER CONFIGURABLE SETTINGS | |||
Function | Location | Setting | |
| » | Hard drive port address is 1F0-1F7h | W1/jumper 1 | open |
Hard drive port address is 170-177h | W1/jumper 1 | closed | |
| » | Floppy drive port address is 3F2-3F7h | W1/jumper 2 | open |
Floppy drive port address is 372-377h | W1/jumper 2 | closed | |
| » | Floppy drive enabled on DOS system | W1/jumper 3
| open
|
Floppy drive disabled on DOS system | W1/jumper 3 W3 | closed
| |
| » | Floppy drive enabled on OS/2 system | W2 | pins 1 & 2 closed |
Floppy drive disabled on OS/2 system | W2 | pins 2 & 3 closed | |
| » | Factory configured - do not alter | W4 | pins 1 & 2 closed |
MISCELLANEOUS TECHNICAL NOTES |
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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