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# FUTURE DOMAIN CORPORATION
TMC-850M, TMC-850MER, TMC-850MEX, TMC-850RL
+------------------------------------------------------------+
|------------------------------------------------------------|
| Data bus: | 8-bit, ISA |
|--------------------------+---------------------------------|
| Size: | Half-length, full-height card |
|--------------------------+---------------------------------|
| Hard drives supported: | Up to seven SCSI devices |
|--------------------------+---------------------------------|
| Floppy drives supported: | None |
+------------------------------------------------------------+
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Location |
|-----------------------------------------+------------------|
| 25-pin SCSI connector-external | J1 |
|-----------------------------------------+------------------|
| 50-pin SCSI connector-internal | J2 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Location | Setting |
|--------------------------------+----------+----------------|
| » | Termination power enabled | W4 | closed |
|---+----------------------------+----------+----------------|
| | Termination power disabled | W4 | open |
|---+----------------------------+----------+----------------|
| » | Zero wait state disabled | W5 | open |
|---+----------------------------+----------+----------------|
| | Zero wait state enabled | W5 | closed |
|---+----------------------------+----------+----------------|
| » | Interrupt Request is IRQ5 | W7 | closed (pins 2 |
| | | | & 3) |
|---+----------------------------+----------+----------------|
| | Interrupt Request is IRQ3 | W6 | closed (pins 1 |
| | | | & 2) |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BIOS ADDRESS SELECTION |
|------------------------------------------------------------|
| Address | W1 | W2 | W3 |
|-------------+---------+---------+--------------------------|
| » | CA00h | open | open | pins 1 & 2, 3 & 4 closed |
|---+---------+---------+---------+--------------------------|
| » | C800h | closed | open | pins 1 & 2, 3 & 4 closed |
|---+---------+---------+---------+--------------------------|
| » | CE00h | open | closed | pins 1 & 2, 3 & 4 closed |
|---+---------+---------+---------+--------------------------|
| » | DE00h | closed | closed | pins 1 & 2, 3 & 4 closed |
|---+---------+---------+---------+--------------------------|
| » | E800h | open | open | pins 1 & 3, 2 & 4 closed |
|---+---------+---------+---------+--------------------------|
| » | EC00h | open | closed | pins 1 & 3, 2 & 4 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| MISCELLENAUS TECHNICAL NOTES |
|------------------------------------------------------------|
| In some version there is an extra terminating resistor and |
| jumper W4 does not exist. |
+------------------------------------------------------------+