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# IRWIN
SC499R
Card Type Tape drive controller
Hard Drives supported None
Floppy drives supported None
Data Bus 8-bit ISA
Card Size Half-length, full-height
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Label |
|-------------------------------+----------------------------|
| Tape drive interface | J3 |
|------------------------------------------------------------|
| Note: Number of pins is unidentified. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|-----------------------------------------+-------+----------|
| » | Factory configured - do not alter | A/8 | Closed |
|---+-------------------------------------+-------+----------|
| » | Factory configured - do not alter | B/1 | Open |
| | (enables interrupt at 512 byte | | |
| | boundaries) | | |
|---+-------------------------------------+-------+----------|
| » | POST enabled | C/1 | Closed |
|---+-------------------------------------+-------+----------|
| | POST disabled | C/1 | Open |
|---+-------------------------------------+-------+----------|
| » | Factory configured - do not alter | C/2 | Open |
|---+-------------------------------------+-------+----------|
| » | Factory configured - do not alter | C/3 | Open |
|---+-------------------------------------+-------+----------|
| » | Factory configured - do not alter | C/4 | Open |
|---+-------------------------------------+-------+----------|
| » | Factory configured - do not alter | C/5 | Closed |
|---+-------------------------------------+-------+----------|
| » | Factory configured - do not alter | C/6 | Closed |
|---+-------------------------------------+-------+----------|
| » | Factory configured - do not alter | D | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DMA CHANNEL SELECTION |
|------------------------------------------------------------|
|Channel | B1/1 | B1/2 | B1/3 | B2/1 | B2/2 | B2/3 |
|--------+--------+--------+--------+--------+-------+-------|
| 1 | Closed | Open | Open | Closed | Open | Open |
|--------+--------+--------+--------+--------+-------+-------|
| 2 | Open | Closed | Open | Open |Closed | Open |
|--------+--------+--------+--------+--------+-------+-------|
| 3 | Open | Open | Closed | Open | Open |Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BASE I/O ADDRESS SELECTION |
|------------------------------------------------------------|
|Address | A/1 | A/2 | A/3 | A/4 | A/5 | A/6 | A/7 |
|--------+-------+-------+-------+------+------+------+------|
| |100h |Closed |Closed |Closed |Closed|Closed| Open |Closed|
|--+-----+-------+-------+-------+------+------+------+------|
|» |200h |Closed |Closed |Closed |Closed|Closed|Closed| Open |
|--+-----+-------+-------+-------+------+------+------+------|
| |220h |Closed |Closed | Open |Closed|Closed|Closed| Open |
|--+-----+-------+-------+-------+------+------+------+------|
| |280h |Closed |Closed |Closed |Closed| Open |Closed| Open |
|--+-----+-------+-------+-------+------+------+------+------|
| |300h |Closed |Closed |Closed |Closed|Closed| Open | Open |
|--+-----+-------+-------+-------+------+------+------+------|
| |338h | Open | Open | Open |Closed|Closed| Open | Open |
|--+-----+-------+-------+-------+------+------+------+------|
| |350h |Closed | Open |Closed | Open |Closed| Open | Open |
|--+-----+-------+-------+-------+------+------+------+------|
| |360h |Closed |Closed | Open | Open |Closed| Open | Open |
|--+-----+-------+-------+-------+------+------+------+------|
| |370h |Closed | Open | Open | Open |Closed| Open | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| INTERRUPT SELECTION |
|------------------------------------------------------------|
|Setting | B/2 | B/3 | B/4 | B/5 | B/6 | B/7 |
|--------+--------+--------+--------+--------+-------+-------|
| IRQ2 | Closed | Open | Open | Open | Open | Open |
|--------+--------+--------+--------+--------+-------+-------|
| IRQ3 | Open | Closed | Open | Open | Open | Open |
|--------+--------+--------+--------+--------+-------+-------|
| IRQ4 | Open | Open | Closed | Open | Open | Open |
|--------+--------+--------+--------+--------+-------+-------|
| IRQ5 | Open | Open | Open | Closed | Open | Open |
|--------+--------+--------+--------+--------+-------+-------|
| IRQ6 | Open | Open | Open | Open |Closed | Open |
|--------+--------+--------+--------+--------+-------+-------|
| IRQ7 | Open | Open | Open | Open | Open |Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| MISCELLANEOUS TECHNICAL NOTES |
|------------------------------------------------------------|
| The SC499-R is used with FT60 tape drive. The tape drive |
| cannot be used in EISA systems , 486 or 386 faster than |
| 25MHz. |
+------------------------------------------------------------+