UNIDENTIFIED
HDD/FDD CONTROLLER
Data Bus |
16-bit ISA |
Card Size |
Full height, half length |
Hard Drives Supported |
Two ST506/412-MFM devices |
Floppy Drives Supported |
Two 360KB, 720KB, 1.2MB, or 1.44MB drives |
CONNECTIONS | |||
Function |
Label |
Function |
Label |
20-pin cable connector - primary drive |
J1 |
34-pin cable connector - floppy drive |
J4 |
20-pin data cable connector - secondary drive |
J2 |
2-pin connector - drive active LED |
LED |
34-pin cable connector - hard drive control |
J3 |
USER CONFIGURABLE SETTINGS | |||
Setting |
Label |
Position | |
» |
Hard drive controller address set to 1F0h |
J5 |
Pins 1 & 3 closed |
Hard drive controller address set to 170h |
J5 |
Pins 3 & 5 closed | |
» |
Floppy controller address set to 3F2h |
J5 |
Pins 2 & 4 closed |
Floppy controller address set to 372h |
J5 |
Pins 4 & 6 closed | |
» |
Floppy drive speed set to 360RPM |
J6 |
Open |
Floppy drive speed set to 300RPM |
J6 |
Closed |