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 | |