DTC5280CL, DTC5280CRA, DTC5280CRZ Hard Disk/Floppy Controller Settings and Configuration
DATA TECHNOLOGY CORPORATION
DTC5280CL, DTC5280CRA, DTC5280CRZ
Data bus: 16-bit, ISA
Size: Full-length, full-height card
Hard drives supported: Two MFM ST506 drives
Floppy drives supported: Two 360KB, 720KB, 1.2MB, or 1.44MB
Sector interleave: 2:1
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 | |
| » | Auto-deselect disabled | W1 | open |
Auto-deselect enabled | W1 | closed | |
| » | Hard drive port addresses are 1F0-1F7 3F0-3F7h | W2 & W3 | open |
Hard drive port addresses are 170-177 370-377h | W2 & W3 | closed | |
| » | Floppy drive data transfer rate is 500KHz | W4 | open |
| Floppy drive data transfer rate is 250KHz | W4 | closed | |
| » | Floppy drive precompensation is scaled by data rate:
500KHz=125ns, 300KHz=208ns, 250KHz=250ns | W7 | open |
Floppy drive precompensation is 125ns | W7 | closed | |
DRIVE SELECT MODE | |||
Function | W5 | W6/jumper 1 & W6/jumper 2 | |
| » | Firmware D.S. mode - Drv. # driven to interface | closed | pins 2 & 3 closed |
| Firmware D.S. mode - Drv. # intercepted by controller | open | pins 1 & 2 closed | |
MISCELLANEOUS TECHNICAL NOTES |
This controller has no onboard user accessible programs. |
My Books
