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# UNIDENTIFIED
FD/HD/TD Controller
+------------------------------------------------------------+
+------------------------------------------------------------+
Data bus: 16-bit,ISA
Size: Half-length, half-height card
Hard drives supported: Two MFM ST506 drives
Floppy drives supported: Two 360KB, 720KB, 1.2MB, 1.44MB
Sector interleave: 1:1
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Location |
|---------------------------------------------+--------------|
| 34-pin control cable connector-floppy drive | J1 |
|---------------------------------------------+--------------|
| 50-pin control cable connector-tape drive | J2 |
|---------------------------------------------+--------------|
| 20-pin data cable connector-drive 0 | J3 |
|---------------------------------------------+--------------|
| 20-pin data cable connector-drive 1 | J4 |
|---------------------------------------------+--------------|
| 34-pin control cable connector-hard drive | J5 |
|---------------------------------------------+--------------|
| 2-pin connector-drive active LED | J6 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| TAPE DRIVE I/O PORT ADDRESS |
|------------------------------------------------------------|
| Address | Jumper W4 | Jumper W5 | Jumper W6 |
|----------+----------------+----------------+---------------|
| | 208h | pins 2 & 3 | pins 1 & 2 | pins 1 & 2 |
| | | closed | closed | closed |
|---+------+----------------+----------------+---------------|
| | 108h | pins 1 & 2 | pins 2 & 3 | pins 1 & 2 |
| | | closed | closed | closed |
|---+------+----------------+----------------+---------------|
| | 218h | pins 2 & 3 | pins 1 & 2 | pins 2 & 3 |
| | | closed | closed | closed |
|---+------+----------------+----------------+---------------|
| » | 118h | pins 1 & 2 | pins 2 & 3 | pins 2 & 3 |
| | | closed | closed | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Location | Setting |
|------------------------------------+----------+------------|
| » | Reserved for Phase Lock Loop | W1 | pins 1 & 2 |
| | Feedback circuit | | closed |
|---+--------------------------------+----------+------------|
| » | Reserved for Read Gate | W1 | pins 1 & 2 |
| | | | closed |
|---+--------------------------------+----------+------------|
| » | Floppy drive port address is | W7 | pins 2 & 3 |
| | 3F0-3F7h | | closed |
|---+--------------------------------+----------+------------|
| | Floppy drive port address is | W7 | pins 1 & 2 |
| | 370-377h | | closed |
|---+--------------------------------+----------+------------|
| » | Hard drive port address is | W8 | pins 2 & 3 |
| | 1F0-1F7h | | closed |
|---+--------------------------------+----------+------------|
| | Hard drive port address is | W8 | pins 1 & 2 |
| | 170-177h | | closed |
|---+--------------------------------+----------+------------|
| » | Reserved for Read Data Window | W9 | pins 1 & 2 |
| | | | closed |
|---+--------------------------------+----------+------------|
| » | Reserved for Read Data Window | W10 | pins 1 & 2 |
| | | | closed |
|---+--------------------------------+----------+------------|
| » | Frame ground and signal ground | W11 | pins 1 & 2 |
| | | | closed |
|---+--------------------------------+----------+------------|
| » | Frame ground and signal ground | W12 | pins 1 & 2 |
| | | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| INTERRUPT REQUEST |
|------------------------------------------------------------|
| IRQ |SW1/switch 1|SW1/switch 2|SW1/switch 3|SW1/switch 4|
|--------+------------+------------+------------+------------|
| |IRQ10 | on | off | off | off |
|-+------+------------+------------+------------+------------|
| |IRQ11 | off | on | off | off |
|-+------+------------+------------+------------+------------|
| |IRQ12 | off | off | on | off |
|-+------+------------+------------+------------+------------|
|»|IRQ15 | off | off | off | on |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DMA CHANNEL |
|------------------------------------------------------------|
| Channel | SW1/switch 5 | SW1/switch 6 | SW1/switch 7 and |
| | and 8 | and 9 | 10 |
|----------+--------------+--------------+-------------------|
| » | DRQ5 | on | off | off |
|---+------+--------------+--------------+-------------------|
| | DRQ6 | off | on | off |
|---+------+--------------+--------------+-------------------|
| | DRQ7 | off | off | on |
+------------------------------------------------------------+