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 |
CONNECTIONS | |||
Purpose |
Location |
Purpose |
Location |
15-pin analog video port |
CN1 |
Terminating resistor |
R26 |
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. |