AUVA COMPUTER, INC.
HFDC-II
Data bus: | 16-bit ISA |
Size: | Three-quarter length, full-height card |
Hard drive supported: | Two MFM ST-506/412 drives |
Floppy drives supported: | Two 360KB, 720KB, 1.2MB, or 1.44MB drives |
CONNECTIONS | |
Function | Location |
4-pin connector - drive active LED | J1 |
20-pin data cable connector - drive 1 | J2 |
20-pin data cable connector - drive 0 | J3 |
34-pin control cable connector - hard drive | J4 |
34-pin control cable connector - floppy drive | J5 |
USER CONFIGURABLE SETTINGS | |||
Function | Location | Setting | |
LED always "on" when system on | W1/1 | open | |
LED "on" only when drive is being accessed | W1/1 | closed | |
» | Four byte ECC enabled | W1/2 | open |
Reserved - do not use | W1/2 | closed | |
Cache enabled | W1/3 | open | |
Cache disabled | W1/3 | closed | |
Interleave ratio is 1:1 | W1/4 | open | |
Maximum interleave ratio is 1:3 | W1/4 | closed | |
Floppy drive primary address is 3F2-3F7h | W2 | open | |
Floppy drive secondary address is 372-377h | W2 | closed | |
Note: Close W1/4 when using disks formatted under the WD1003-WAH controller. |
USER CONFIGURABLE SETTINGS CONTINUED | ||
Function | Location | Setting |
Hard drive primary address is 1F0-1F7h | W3 | open |
Hard drive secondary address is 170-177h | W3 | closed |
Floppy drive single speed enabled | W4 | open |
Floppy drive dual speed enabled | W4 | closed |