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# INFORMTECH INTERNATIONAL, INC.
IT-VGACL VER. 1.0
Category Video
Video Types Supported VGA
Video Processor Cirrus Logic, Inc.
Highest Resolution Supported 1280 x 1024
Data Bus Type VESA local bus
Memory Type VRAM
Maximum Onboard Memory 2MB
(IMG) IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|------------------------+----------+-------------+----------|
| 15-pin analog video | CN1 | Terminating | R26 |
| port | | resistor | |
|------------------------+----------+-------------+----------|
| Terminating resistor | R25 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| INTERRUPT REQUEST |
|------------------------------------------------------------|
| IRQ9 | JP11 |
|---------------------------------+--------------------------|
| » | Disabled | Open |
|---+-----------------------------+--------------------------|
| | Enabled | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BS16 |
|------------------------------------------------------------|
| BS16 | JP12 |
|---------------------------------+--------------------------|
| » | Enabled | Closed |
|---+-----------------------------+--------------------------|
| | Disabled | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| OEL |
|------------------------------------------------------------|
| OEL | JP13 |
|---------------------------------+--------------------------|
| » | Enabled | Closed |
|---+-----------------------------+--------------------------|
| | Disabled | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| OEH |
|------------------------------------------------------------|
| OEH | JP14 |
|---------------------------------+--------------------------|
| » | Enabled | Closed |
|---+-----------------------------+--------------------------|
| | Disabled | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CLOCK SPEED |
|------------------------------------------------------------|
| Setting | JP15 | JP16 |
|------------------------+-----------------+-----------------|
| » | 50.11MHz | Open | Open |
|---+--------------------+-----------------+-----------------|
| | 37.58MHz | Closed | Closed |
|---+--------------------+-----------------+-----------------|
| | 42.16MHz | Closed | Open |
|---+--------------------+-----------------+-----------------|
| | 44.74MHz | Open | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VIDEO MEMORY CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 |
|--------------+------------------------+--------------------|
| » | 1MB | (8) 256K x 4 VRAM | NONE |
|-----+--------+------------------------+--------------------|
| | 2MB | (8) 256K x 4 VRAM | (2) 512K x 8 VRAM |
|------------------------------------------------------------|
| Note:If terminating resistors R25 and R26 are oriented |
| horizontally, then the 512K x 8 VRAM chips are Bank 0. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| MISCELLANEOUS TECHNICAL NOTES |
|------------------------------------------------------------|
| Some cards may have a zero-wait state jumper installed. |
| The Pins-Closed configuration enables the zero-wait state. |
+------------------------------------------------------------+