ADVANCED LOGIC RESEARCH, INC.
RLL FLOPPY/HARD DISK CONTROLLER
Card Type |
Hard drive controller |
Hard Drives supported |
Two ST-506/412(RLL) drives |
Floppy drives supported |
Two 360KB, 720KB, 1.2MB, 1.44MB |
Data Bus |
16-bit ISA |
Card Size |
Three-quarter length, full-height |
CONNECTIONS | |||
Function |
Label |
Function |
Label |
34-pin cable connector - floppy drive |
J1 |
20-pin data cable connector - drive 1 |
J4 |
34-pin control cable connector - hard drive |
J2 |
4-pin connector - drive active LED |
J5 |
20-pin data cable connector - drive 0 |
J3 |
USER CONFIGURABLE SETTINGS | |||
Function |
Label |
Position | |
Factory configured - do not alter |
W1 |
Open | |
Primary port address is 1F0h, 3F2h |
W2 |
Open | |
Unidentified |
W2 |
Closed | |
Secondary port address is 170h, 372h |
W3 |
Open | |
Unidentified |
W3 |
Closed | |
Initial data Rate control 500-KHZ enabled |
W4 |
Open | |
Unidentified |
W4 |
Closed | |
Hardware select mode enabled |
W5 |
Closed | |
Hardware select mode disabled |
W5 |
Open | |
Factory configured - do not alter |
W6 |
Pins 1 & 2 open, 3 & 4, 5 & 6 closed | |
Floppy precompensation control - unidentified |
W7 |
Open | |
Unidentified |
W7 |
Closed | |
16K PROM enabled |
W8 |
Closed | |
Unidentified |
W8 |
Open | |
PROM address is C8000h |
W9 |
Open | |
Unidentified |
W9 |
Closed | |
PROM enabled |
W10 |
Closed | |
PROM disabled |
W10 |
Open |