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.  |