(TXT) View Source
# 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
(IMG) IMG 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 | W2 & W3 | open |
| | 1F0-1F7 3F0-3F7h | | |
|---+-----------------------------------+----------+---------|
| | Hard drive port addresses are | W2 & W3 | closed |
| | 170-177 370-377h | | |
|---+-----------------------------------+----------+---------|
| » | Floppy drive data transfer rate | W4 | open |
| | is 500KHz | | |
|---+-----------------------------------+----------+---------|
| | Floppy drive data transfer rate | W4 | closed |
| | is 250KHz | | |
|---+-----------------------------------+----------+---------|
| » | Floppy drive precompensation is | W7 | open |
| | scaled by data rate: | | |
| | | | |
| | 500KHz=125ns, 300KHz=208ns, | | |
| | 250KHz=250ns | | |
|---+-----------------------------------+----------+---------|
| | Floppy drive precompensation is | W7 | closed |
| | 125ns | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRIVE SELECT MODE |
|------------------------------------------------------------|
| Function | W5 | W6/jumper 1 |
| | | & W6/jumper |
| | | 2 |
|-------------------------------------+--------+-------------|
| » | Firmware D.S. mode - Drv. # | closed | pins 2 & 3 |
| | driven to interface | | closed |
|---+---------------------------------+--------+-------------|
| | Firmware D.S. mode - Drv. # | open | pins 1 & 2 |
| | intercepted by controller | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| MISCELLANEOUS TECHNICAL NOTES |
|------------------------------------------------------------|
| This controller has no onboard user accessible programs. |
+------------------------------------------------------------+