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# TECHNOLOGY WORKS
AT1000
Category Video
Video Types Supported XVGA
Video Processor TMS34020, TMS34082, Tseng Labs ET4000
Highest Resolution 1024 x 768
Supported
Data Bus Type 16-bit ISA
Memory Type DRAM/VGA RAM/VRAM
Maximum Onboard Memory 4MB/1MB/1MB (See DRAM technical note)
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|------------------------+----------+-------------+----------|
| 15-pin analog video | CN1 | VGA feature | CN2 |
| port | | connector | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BASE I/O ADDRESS SELECTION |
|------------------------------------------------------------|
| Address | SW1/1 | SW1/2 |SW1/3 |SW1/4 |SW1/5 |SW1/6 |SW1/7 |
|---------+-------+-------+------+------+------+------+------|
|ยป | 360h | Off | Off | On | Off | Off | On | On |
|--+------+-------+-------+------+------+------+------+------|
| | 300h | Off | Off | On | On | On | On | On |
|--+------+-------+-------+------+------+------+------+------|
| | 308h | Off | Off | On | On | On | On | Off |
|--+------+-------+-------+------+------+------+------+------|
| | 310h | Off | Off | On | On | On | Off | On |
|--+------+-------+-------+------+------+------+------+------|
| | 340h | Off | Off | On | Off | On | On | On |
|--+------+-------+-------+------+------+------+------+------|
| | 380h | Off | Off | Off | On | On | On | On |
|--+------+-------+-------+------+------+------+------+------|
| | 3A0h | Off | Off | Off | On | Off | On | On |
|--+------+-------+-------+------+------+------+------+------|
| | 3E0h | Off | Off | Off | Off | Off | On | On |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VGA CONTROLLER CONFIGURATION |
|------------------------------------------------------------|
| Setting | SW1/12 |
|-----------------------------------------+------------------|
| Enable the Tseng Labs ET4000 | On |
|-----------------------------------------+------------------|
| Disable the Tseng Labs ET4000 | Off |
|------------------------------------------------------------|
| Note: Make sure when you enable the ET4000 controller that |
| the VGA processor in the host system is disabled. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VGA RAM CONFIGURATION |
|------------------------------------------------------------|
| Memory | Bank 0/Bank 1 | Bank 0/ Bank 1 |
|---------------+----------------------+---------------------|
| 512KB | (2) 256K x 4 | NONE |
|---------------+----------------------+---------------------|
| 1MB | (2) 256K x 4 | (2) 256K x 4 |
|------------------------------------------------------------|
| Note: Relative location of Bank 0 & Bank 1 is |
| unidentified. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| FACTORY CONFIGURED - DO NOT ALTER |
|------------------------------------------------------------|
| Switch | Position |
|-----------------------------+------------------------------|
| SW1/8 | On |
|-----------------------------+------------------------------|
| SW1/9 | Off |
|-----------------------------+------------------------------|
| SW1/10 | Off |
|-----------------------------+------------------------------|
| SW1/11 | Off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM TECHNICAL NOTE |
|------------------------------------------------------------|
| The AT1000 can come with either 1MB or 4MB of memory |
| depending on the version you have. The exact memory |
| configuration of this card is unidentified by the |
| manufacturer. |
+------------------------------------------------------------+