TMC-875, TMC-885 Hard Disk/Floppy Controller Settings and Configuration
FUTURE DOMAIN CORPORATION
TMC-875, TMC-885
Data bus: 8-bit, ISA (extension card-edge may be present, but is not active)
Size: Full-length, full-height card
Hard drives supported: Up to seven SCSI devices
Floppy drives supported: Four 360KB, 720KB, 1.2MB, or 1.44MB drives
Sector interleave: 1:1
CONNECTIONS | |
Function | Location |
25-pin SCSI connector-external | J1 |
50-pin SCSI connector-internal | J2 |
34-pin control cable connector-floppy drives 1 and 2 | J3 |
34-pin data cable connector-floppy drives 3 and 4 | J4 |
4-pin connector-drive active LED | J5 |
USER CONFIGURABLE SETTINGS | |||
Function | Location | Setting | |
| » | Floppy drive port address 3F2-3F7h, IRQ6 | F1 | open |
Floppy drive port address 372-377h, IRQ5* | F1 | closed | |
| » | Hard Drive port address emulation enabled | F2 | open |
Hard drive port address emulation disabled (This is used if another hard drive controller is present) | F2 | closed | |
| » | Zero Wait State disabled | W5 | open |
Zero Wait State enabled | W5 | closed | |
Note:* If this setting is used the Hard Drive IRQ must be changed | |||
BIOS ADDRESS | |||
Address | W1 | W2 | |
| » | CA00h | open | open |
C800h | open | closed | |
CE00h | closed | open | |
DE00h | closed | closed | |
HARD DRIVE IRQ | |||||||||
IRQ | W4/1 | W4/2 | W4/3 | W4/4 | W4/5 | W4/6 | W4/7 | W4/8 | |
IRQ3 | closed | open | open | open | open | open | open | open | |
IRQ4 | open | closed | open | open | open | open | open | open | |
| » | IRQ5 | open | open | closed | open | open | open | open | open |
IRQ10 | open | open | open | closed | open | open | open | open | |
IRQ11 | open | open | open | open | closed | open | open | open | |
IRQ12 | open | open | open | open | open | closed | open | open | |
IRQ14 | open | open | open | open | open | open | closed | open | |
IRQ15 | open | open | open | open | open | open | open | closed | |
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