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# OPTIVISION, INC.
MPEG-1 GENLOCK DECODER
Card Type MPEG decoder
Video Chip Set Unidentified
Maximum Playback Supported 720 x 480 (NTSC), 720 x 576 (PAL)
Highest Resolution Supported Unidentified
Maximum Video Memory None
Data Bus 16-bit ISA
Video Types Supported XVGA
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Label | Function | Label |
|-------------------+-------+------------------------+-------|
| S-video out | CN1 | Composite video out | J2 |
|-------------------+-------+------------------------+-------|
| Genlock | J1 | Audio out | J3 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BASE I/O ADDRESS SELECTION |
|------------------------------------------------------------|
|Setting |SW1/1 |SW1/2 |SW1/3 |SW1/4 |SW1/5|SW1/6|SW1/7|SW1/8|
|--------+------+------+------+------+-----+-----+-----+-----|
| |000h | On | On | On | On | On | On | On | On |
|--+-----+------+------+------+------+-----+-----+-----+-----|
| |004h | Off | On | On | On | On | On | On | On |
|--+-----+------+------+------+------+-----+-----+-----+-----|
| |008h | On | Off | On | On | On | On | On | On |
|--+-----+------+------+------+------+-----+-----+-----+-----|
| |00Ch | Off | Off | On | On | On | On | On | On |
|--+-----+------+------+------+------+-----+-----+-----+-----|
| |010h | On | On | Off | On | On | On | On | On |
|--+-----+------+------+------+------+-----+-----+-----+-----|
|» |208h | On | Off | On | On | On | On | On | Off |
|--+-----+------+------+------+------+-----+-----+-----+-----|
| |3ECh | Off | Off | On | Off | Off | Off | Off | Off |
|--+-----+------+------+------+------+-----+-----+-----+-----|
| |3F0h | On | On | Off | Off | Off | Off | Off | Off |
|--+-----+------+------+------+------+-----+-----+-----+-----|
| |3F4h | Off | On | Off | Off | Off | Off | Off | Off |
|--+-----+------+------+------+------+-----+-----+-----+-----|
| |3F8h | On | Off | Off | Off | Off | Off | Off | Off |
|--+-----+------+------+------+------+-----+-----+-----+-----|
| |3FCh | Off | Off | Off | Off | Off | Off | Off | Off |
|------------------------------------------------------------|
| Note:A total of 255 base address settings are |
| available. The switches are a binary representation of |
| the decimal memory addresses. SW1/8 is the Most |
| Significant Bit and switch SW1/1 is the Least |
| Significant Bit. The switches have the following |
| decimal values: SW1/8=512, SW1/7=256, SW1/6=128, |
| SW1/5=64, SW1/4=32, SW1/3=16, SW1/2=8, SW1/1=4. Turn |
| off the switches and add the values of the switches to |
| obtain the correct memory address. (Off=1, On=0) |
+------------------------------------------------------------+
+------------------------------------------------------------+
| INTERRUPT SELECTION |
|------------------------------------------------------------|
| IRQ | J12 | J13 | J14 | J15 | J16 | J17 |
|-------+--------+--------+--------+--------+--------+-------|
| | 2/9 | Open | Open | Open | Open | Open |Closed |
|-+-----+--------+--------+--------+--------+--------+-------|
| | 3 | Open | Open | Open | Open | Open | Open |
|-+-----+--------+--------+--------+--------+--------+-------|
| | 4 | Open | Open | Open | Open | Open | Open |
|-+-----+--------+--------+--------+--------+--------+-------|
|»| 5 | Open | Open | Open | Open | Open | Open |
|-+-----+--------+--------+--------+--------+--------+-------|
| | 6 | Open | Open | Open | Open | Open | Open |
|-+-----+--------+--------+--------+--------+--------+-------|
| | 7 | Open | Open | Open | Open | Open | Open |
|-+-----+--------+--------+--------+--------+--------+-------|
| | 10 | Open | Open | Open | Open | Closed | Open |
|-+-----+--------+--------+--------+--------+--------+-------|
| | 11 | Open | Open | Open | Closed | Open | Open |
|-+-----+--------+--------+--------+--------+--------+-------|
| | 12 | Open | Open | Closed | Open | Open | Open |
|-+-----+--------+--------+--------+--------+--------+-------|
| | 14 | Open | Closed | Open | Open | Open | Open |
|-+-----+--------+--------+--------+--------+--------+-------|
| | 15 | Closed | Open | Open | Open | Open | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| INTERRUPT SELECTION (CON’T) |
|------------------------------------------------------------|
| IRQ | J18 | J19 | J20 | J21 | J22 |
|----------+---------+---------+---------+---------+---------|
| | 2/9 | Open | Open | Open | Open | Open |
|---+------+---------+---------+---------+---------+---------|
| | 3 | Open | Open | Open | Open | Closed |
|---+------+---------+---------+---------+---------+---------|
| | 4 | Open | Open | Open | Closed | Open |
|---+------+---------+---------+---------+---------+---------|
| » | 5 | Open | Open | Closed | Open | Open |
|---+------+---------+---------+---------+---------+---------|
| | 6 | Open | Closed | Open | Open | Open |
|---+------+---------+---------+---------+---------+---------|
| | 7 | Closed | Open | Open | Open | Open |
|---+------+---------+---------+---------+---------+---------|
| | 10 | Open | Open | Open | Open | Open |
|---+------+---------+---------+---------+---------+---------|
| | 11 | Open | Open | Open | Open | Open |
|---+------+---------+---------+---------+---------+---------|
| | 12 | Open | Open | Open | Open | Open |
|---+------+---------+---------+---------+---------+---------|
| | 14 | Open | Open | Open | Open | Open |
|---+------+---------+---------+---------+---------+---------|
| | 15 | Open | Open | Open | Open | Open |
+------------------------------------------------------------+