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# IMAGRAPH CORPORATION
V8 (VERSIONS A, B, C, D, & E)
Category Video
Video Types Supported XVGA
Video Processor Trident
Highest Resolution Supported 1280 x 1024
Data Bus Type 16-bit ISA
Memory Type VRAM
Maximum Onboard Memory 2048KB
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|--------------+----------+-----------------------+----------|
| 15-pin video | J1 | Daughterboard | P3 |
| port | | connector | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| EMULATION TYPE CONFIGURATION |
|------------------------------------------------------------|
| Type | Address | JP1 | JP1A |
|---------------------+--------------+-----------+-----------|
| » | VGA/EGA with | 3DDh - 3DEh | Pins 1 &2 | Pins 1 &2 |
| | High Resolution | | closed | closed |
|---+-----------------+--------------+-----------+-----------|
| | CGA with High | 3DDh - 3DEh | Pins 2 & | Pins 2 & |
| | Resolution | | 3 closed | 3 closed |
|---+-----------------+--------------+-----------+-----------|
| | High resolution | 3DDh - 3DEh | Pins 1 &2 | Pins 2 & |
| | | | closed | 3 closed |
|---+-----------------+--------------+-----------+-----------|
| | High resolution | 30Dh - 30Eh | Pins 2 & | Pins 1 &2 |
| | | | 3 closed | closed |
|------------------------------------------------------------|
| Note: Address setting 30Dh - 30Eh requires special |
| device driver software for operation. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| MONITOR CONNECTOR SENSE CONFIGURATION |
|------------------------------------------------------------|
| Setting | J8 | J9 |
|-------------------------+-----------------+----------------|
| » | Disabled | Pins 1 & 2 | Pins 1 & 2 |
| | | closed | closed |
|--------+----------------+-----------------+----------------|
| | Enabled | Pins 2 & 3 | Pins 2 & 3 |
| | | closed | closed |
|------------------------------------------------------------|
| Note: An optional microcode EPROM must be installed before |
| Connector Sense can be enabled. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VGA DAUGHTERBOARD CONFIGURATION |
|------------------------------------------------------------|
| Setting | J12 |
|---------------------------------+--------------------------|
| » | Not installed | Pins 2 & 3 closed |
|----------+----------------------+--------------------------|
| | Installed | Pins 1 & 2 closed |
|------------------------------------------------------------|
| Note: This setting does not apply to versions B, C, D, or |
| E. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BIOS SIZE SELECTION |
|------------------------------------------------------------|
| Size | J10 |
|-------------------------------+----------------------------|
| » | 32K (VGA) | Pins 1 &2 closed |
|--------+----------------------+----------------------------|
| | 16K (EGA) | Pins 2 & 3 closed |
|------------------------------------------------------------|
| Note: This setting does not apply to version B. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VIDEO INTERRUPT SELECTION |
|------------------------------------------------------------|
| IRQ | S3 |
|----------------------------+-------------------------------|
| » | 10 | Pins 3 & 4 closed |
|---+------------------------+-------------------------------|
| | 2/9 | Pins 9 & 10 closed |
|---+------------------------+-------------------------------|
| | 11 | Pins 5 & 6 closed |
|---+------------------------+-------------------------------|
| | 12 | Pins 7 & 8 closed |
|---+------------------------+-------------------------------|
| | Disabled | Pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| ALTERNATE I/O PORT ADDRESS SELECTION |
|------------------------------------------------------------|
| Address | S6 |
|------------------------------+-----------------------------|
| » | 3xx | Pins 2 & 3 closed |
|------------+-----------------+-----------------------------|
| | 1xx | Pins 1 &2 closed |
|------------------------------------------------------------|
| Note: This setting does not apply to versions B or C. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DMA CHANNEL SELECTION |
|------------------------------------------------------------|
| DRQ | Dack | S5 | S8 |
|----------+---------+-------------------+-------------------|
| » | 7 | 7 | Pins 1 & 2 closed | Pins 1 & 2 closed |
|---+------+---------+-------------------+-------------------|
| | 6 | 6 | Pins 3 & 4 closed | Pins 3 & 4 closed |
|---+------+---------+-------------------+-------------------|
| | 5 | 5 | Pins 5 & 6 closed | Pins 5 & 6 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| STRING I/O OPERATION CONFIGURATION |
|------------------------------------------------------------|
| Setting | S14 |
|------------------------------+-----------------------------|
| » | Disabled | Pins 2 & 3 closed |
|-----------+------------------+-----------------------------|
| | Enabled | Pins 1 &2 closed |
|------------------------------------------------------------|
| Note: This setting does not apply to version B. |
| Microcode EPROM and device driver software must be |
| installed before I/O string operations can be enabled. |
+------------------------------------------------------------+