TECHNOLOGY WORKS
AT1000
|
Category |
Video |
|
Video Types Supported |
XVGA |
|
Video Processor |
TMS34020, TMS34082, Tseng Labs ET4000 |
|
Highest Resolution Supported |
1024 x 768 |
|
Data Bus Type |
16-bit ISA |
|
Memory Type |
DRAM/VGA RAM/VRAM |
|
Maximum Onboard Memory |
4MB/1MB/1MB (See DRAM technical note) |
|
CONNECTIONS |
|||
|
Purpose |
Location |
Purpose |
Location |
|
15-pin analog video port |
CN1 |
VGA feature connector |
CN2 |
|
BASE I/O ADDRESS SELECTION |
||||||||
|
Address |
SW1/1 |
SW1/2 |
SW1/3 |
SW1/4 |
SW1/5 |
SW1/6 |
SW1/7 |
|
|
» |
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. |