DTC5280DL Hard Disk/Floppy Controller Settings and Configuration
DATA TECHNOLOGY CORPORATION
DTC5280DL
Data bus: 16-bit, ISA
Size: Full-length, full-height card
Hard drives supported: Two MFM ST506/412 drives
Floppy drives supported: Two 360KB, 720KB, 1.2MB, or 1.44MB
Sector Interleave: 2:1
CONNECTIONS | |
Function | Location |
34-pin control cable connector-floppy drive | J1 |
34-pin data 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 | |
| » | Factory configured - do not alter | JP1 | open |
| » | Port addresses are 1F0-1F7 and 3F2-3F7h | JP2 | open |
Port addresses are 170-177 and 372-377h | JP2 | closed | |
| » | Factory configured - do not alter | JP3 | open |
| » | Floppy drive precompensation is scaled by data rate:500khz=125ns, 300KHz=208ns, 50KHz=250ns | JP4 | pins 1 & 2 open |
Floppy drive precompensation is 125ns | JP4 | pins 1 & 2 closed | |
| » | Drive 0 is a single speed floppy drive | JP4 | pins 3 & 4 closed |
Drive 0 is a dual speed floppy drive | JP4 | pins 3 & 4 open | |
| » | Drive 1 is a single speed floppy drive | JP4 | pins 5 & 6 closed |
Drive 1 is a dual speed floppy drive | JP4 | pins 5 & 6 open | |
FLOPPY DRIVE CONFIGURATION | |||
Function | Location | Setting | |
| » | Floppy drive 0 uses standard logic
| JP5 | pins 4 & 6 closed |
Floppy drive 0 uses reverse logic
| JP5 | pins 2 & 4 closed | |
| » | Floppy drive 1 uses standard logic
| JP5 | pins 3 & 5 closed |
Floppy drive 1 uses reverse logic
| JP5 | pins 1 & 3 closed | |
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