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RARE VINTAGE DATA TECHNOLOGY 5287 CR 16 BIT ISA RLL FLOPPY HARD DRIVE CONTROLLER. Video card only. Manual and Drivers NOT included.
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US-RM00-SHFVGAMX-0000-7.8
DATA TECHNOLOGY CORPORATION
DTC5287CR, DTC5287I, DTC7287
Data bus: 16-bit, ISA
Size: Full-length, full-height card
Hard drives supported: Two RLL ST506/412 drives with 17,32, or 60 sector mapping
Floppy drives supported: Two 360KB, 720KB, 1.2MB, or 1.44MB
Sector interleave: DTC5287CR: 1:1
DTC5287i: 2:1
DTC7287: 1:1
CONNECTIONS | |
Function | Location |
34-pin data cable connector-floppy drive | J1 |
34-pin control cable connector-hard drive | J2 |
20-pin data cable connector-drive 0 | J3 |
20-pin data cable connector-drive 1 | J4 |
4-pin connector-drive active LED | J5 |
USER CONFIGURABLE SETTINGS | |||
Function | Location | Setting | |
» | Floppy drive data transfer rate is 500KHz | W4 | open |
Floppy drive data transfer rate is 250KHz | W4 | closed | |
» | Hardware drive select mode (drive number is driven directly to the interface) | W5 | closed |
Firmware drive select mode (drive number is intercepted by controller firmware) | W5 | open | |
» | Auto-deselect enabled | W6 | closed |
Auto-deselect disabled | W6 | open | |
» | Floppy drive precompensation scaled by data rate: 500KHz=125ns, 300KHz=208ns, 250KHz=250ns | W7 | open |
Floppy drive precompensation is 125ns | W7 | closed | |
» | Factory configured - do not alter | W8 | closed |
» | BIOS address is C800h | W9 | open |
BIOS address is D800h | W9 | closed | |
» | BIOS enabled | W10 | closed |
BIOS disabled | W10 | open |