SM4 Hard Disk/Floppy Controller Settings and Configuration
AMERICAN MULTISOURCE, INC.
SM4
Data bus: | 16-bit ISA |
Size: | Three/quarter-length, full-height card |
Hard drive supported: | Two MFM ST506/412 drives |
Floppy drives supported: | Four 360KB, 720KB, 1.2MB, 1.44MB drives |
CONNECTIONS | |
Function | Location |
34-pin control cable connector - hard drive | J1 |
20-pin data cable connector | J2 |
20-pin data cable connector | J3 |
34-pin connector - floppy drive interface (drives 1 & 2) | J4 |
4-pin connector - drive active LED | J5 |
34-pin connector - floppy drive interface (drives 3 & 4) | J6 |
34-pin connector - floppy drive interface (drives 3 & 4) - external | J7 |
USER CONFIGURABLE SETTINGS | |||
Function | Location | Setting | |
» | Floppy drive interface address select primary | W8 | open |
| Floppy drive interface address select secondary | W8 | closed |
» | Hard drive address is primary | W11 | open |
| Hard drive address is secondary | W11 | closed |
HARD DRIVE INTERFACE CONFIGURATION | |||
Setting | W5 | W12 | |
» | Enabled | pins 2 & 3 closed | closed |
| Disabled | pins 1 & 2 closed | open |
FLOPPY DRIVE INTERFACE CONFIGURATION | |||
Setting | W9 | W10 | |
» | Enabled | closed | closed |
| Disabled | open | open |
Note: The location of W9 is unidentified. | |||
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