DTC3250 Hard Disk/Floppy Controller Settings and Configuration
DATA TECHNOLOGY CORPORATION
DTC3250
Data bus: 8-bit, ISA
Size: Half-length, full-height card
Hard drives supported: Up to seven SCSI devices
Floppy drives supported: Three 360KB or 720KB
CONNECTIONS | |
Function | Location |
50-pin SCSI connector-internal | CN1 |
50-pin SCSI connector-external | CN2 |
34-pin data cable connector-floppy drive | CN3 |
BIOS ADDRESS | |||
Address | SW2/switch 5 | SW2/switch 6 | |
| » | D800h | off | off |
DC00h | on | off | |
C800h | off | on | |
| CC00h | on | on | |
USER CONFIGURABLE SETTINGS | |||
Function | Location | Setting | |
| » | Floppy port address 3F2-3F7h | JP1 | pins 1 & 2 closed |
Floppy port address 372-377h | JP1 | pins 2 & 3 closed | |
| » | Normal operation | JP2 | pins 2 & 3 closed |
Factory test enabled | JP2 | pins 1 & 2 closed | |
| » | SCSI parity check disabled | SW1/switch 3 | on |
SCSI parity check enabled | SW1/switch 3 | off | |
| » | Dual-speed floppy supported | SW2/switch 7 | on |
Single-speed floppy supported | SW2/switch 7 | off | |
| » | PS/2-type floppy on Drive Select 2 not supported | SW2/switch 8 | on |
PS/2-type floppy drive on Drive Select 2 supported | SW2/switch 8 | off | |
| » | Floppy drive disabled | SW2/switch 9 | off |
Floppy drive enabled | SW2/switch 9 | on | |
| » | Normal operation mode | SW2/switch 10 | off |
Factory test enabled | SW2/switch 10 | on | |
INTERRUPT REQUEST SWITCHES - SW1 AND SW2 | |||||||
INTERRUPT "A" | INQUIRY INTERRUPT "B" | ||||||
# | SW1/1 | SW1/2 | SW2/1 | SW2/2 | SW2/3 | SW2/4 | |
4 | on | on | off | off | off | on | |
5 | off | on | off | off | on | off | |
6 | on | off | off | on | off | off | |
| » | 7 | off | off | on | off | off | off |
SCSI ADDRESS | ||||
SCSI ID | SW1/switch 4 | SW1/switch 5 | SW1/switch 6 | |
0 | on | on | on | |
1 | off | on | on | |
2 | on | off | on | |
3 | off | off | on | |
4 | on | on | off | |
5 | off | on | off | |
6 | on | off | off | |
| » | 7 | off | off | off |
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