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# ULTRASTOR CORPORATION
12F/12
Data Bus 16-bit ISA
Card Size Three-quarter length, half-height card
Hard Drives Two ESDI drives
supported
Floppy drives Two 360KB, 720KB, 1.2MB, or 1.44MB drives
supported
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Location | Function | Location |
|-------------------+----------+------------------+----------|
| 34-pin cable | J1 | 20-pin cable | J4 |
| connector - | | connector - | |
| floppy drive | | drive 0 | |
|-------------------+----------+------------------+----------|
| 4-pin connector - | J2 | 34-pin control | J5 |
| drive active LED | | cable connector | |
| | | - hard drive | |
|-------------------+----------+------------------+----------|
| 20-pin cable | J3 | | |
| connector - drive | | | |
| 1 | | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|------------------------------------+--------+--------------|
| » | Factory configured - do not | JP1 | Unidentified |
| | alter | | |
|---+--------------------------------+--------+--------------|
| » | Factory configured - do not | JP3 | Closed |
| | alter | | |
|---+--------------------------------+--------+--------------|
| » | On-board cache enabled | JP4 | Open |
|---+--------------------------------+--------+--------------|
| | On-board cache disabled | JP4 | Pins 3 & 4 |
| | | | closed |
|---+--------------------------------+--------+--------------|
| » | Factory configured - do not | JP9 | Open |
| | alter | | |
|---+--------------------------------+--------+--------------|
| » | Third floppy drive with | JP11/1 | Open |
| | twisted cable - jumper drive | | |
| | as DS2 | | |
|---+--------------------------------+--------+--------------|
| | Third floppy drive with | JP11/1 | Closed |
| | straight cable - jumper drive | | |
| | as DS4 | | |
|---+--------------------------------+--------+--------------|
| » | Drive 1 AT configured | JP11/2 | Open |
|---+--------------------------------+--------+--------------|
| | Drive 1 3.5 inch PS/2 | JP11/2 | Closed |
| | configured (different pin 2 | | |
| | polarity) | | |
|---+--------------------------------+--------+--------------|
| » | Drive 0 AT configured | JP11/3 | Open |
|---+--------------------------------+--------+--------------|
| | Drive 0 3.5 inch PS/2 | JP11/3 | Closed |
| | configured (different pin 2 | | |
| | polarity) | | |
|---+--------------------------------+--------+--------------|
| » | Floppy drive primary address | JP11/4 | Open |
| | is 3F0h | | |
|---+--------------------------------+--------+--------------|
| | Floppy drive secondary address | JP11/4 | Closed |
| | is 370h | | |
|---+--------------------------------+--------+--------------|
| » | Single speed floppy drive | JP11/5 | Open |
| | enabled | | |
|---+--------------------------------+--------+--------------|
| | Dual speed floppy drive | JP11/5 | Closed |
| | enabled | | |
|---+--------------------------------+--------+--------------|
| » | Precomp varies according to | JP11/6 | Open |
| | floppy data rate | | |
|---+--------------------------------+--------+--------------|
| | Precomp is 125 ns | JP11/6 | Closed |
|---+--------------------------------+--------+--------------|
| » | Hard drive primary address | JP12 | Open |
| | select (1F0-1F7h) | | |
|---+--------------------------------+--------+--------------|
| | Hard drive secondary address | JP12 | Closed |
| | select (170-177h) | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS (CONTINUED) |
|------------------------------------------------------------|
| Function | Label | Position |
|----------------------------------------+-------+-----------|
| » | Chassis ground not connected to | JP16 | Open |
| | logic ground | | |
|---+------------------------------------+-------+-----------|
| | Chassis ground connected to logic | JP16 | Closed |
| | ground | | |
|---+------------------------------------+-------+-----------|
| | Floppy interface disabled | JP17 | Open |
|---+------------------------------------+-------+-----------|
| | Floppy interface enabled | JP17 | Closed |
|---+------------------------------------+-------+-----------|
| » | IRQ 14 select | JP20 | Pins 2 & |
| | | | 3 closed |
|---+------------------------------------+-------+-----------|
| | IRQ 15 select | JP20 | Pins 1 & |
| | | | 2 closed |
|------------------------------------------------------------|
| Note: Jumpers JP1 and JP9 are removed on revision B00. |
| Location of jumper JP16 is unidentified. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Data buffer | JP5 | JP6 |
|------------------+--------------------+--------------------|
| » | 8KB | Pins 2 & 3 closed | Pins 1 & 2 closed |
|-----+------------+--------------------+--------------------|
| | 32KB | Pins 1 & 2 closed | Pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BIOS ADDRESS SELECTION |
|------------------------------------------------------------|
| Address | JP10/pins 1 & 2 | JP10/pins 3 | JP10/pins 5 |
| | | & 4 | & 6 |
|--------------+-----------------+-------------+-------------|
| » | C8000h | Open | Open | Closed |
|---+----------+-----------------+-------------+-------------|
| | CC000h | Open | Closed | Open |
|---+----------+-----------------+-------------+-------------|
| | D0000h | Open | Closed | Closed |
|---+----------+-----------------+-------------+-------------|
| | D4000h | Closed | Open | Open |
|---+----------+-----------------+-------------+-------------|
| | D8000h | Closed | Open | Closed |
|---+----------+-----------------+-------------+-------------|
| | DC000h | Closed | Closed | Open |
|---+----------+-----------------+-------------+-------------|
| | Disabled | Open | Open | Open |
+------------------------------------------------------------+