UNIDENTIFIED
AT BUS/FLOPPY DISK CONTROLLER
| 
 
  | |
| 
 Data bus:  | 
 16-bit ISA  | 
| 
 Size:  | 
 Three/quarter-length, full-height card  | 
| 
 Hard drive supported:  | 
 Two IDE (AT) interface drives  | 
| 
 Floppy drives supported:  | 
 Two 360KB, 720KB, 1.2MB, or 1.44MB drives  | 
| 
 CONNECTIONS  | |
| 
 Function  | 
 Location  | 
| 
 40-pin IDE (AT) interface connector  | 
 J1  | 
| 
 34-pin control cable connector - floppy drive  | 
 J4  | 
| 
 4-pin connector - drive active LED  | 
 J6  | 
| 
 USER CONFIGURABLE SETTINGS  | |||
| 
 » Function | 
 Location  | 
 Setting  | |
| » | 
 IRQ14 enabled  | 
 J2/pins 2 & 3  | 
 closed  | 
| 
 XIRQ14 enabled  | 
 J2/pins 1 & 2  | 
 closed  | |
| » | 
 Factory configured - do not alter  | 
 J3  | 
 N/A  | 
| » | 
 Factory setting  | 
 J7/pins 2 & 3  | 
 closed  | 
| 
 Two speed spindle type drive  | 
 J7/pins 1 & 2  | 
 closed  | |
| » | 
 Hard drive enabled  | 
 J8/pins 1 & 2  | 
 closed  | 
| 
 Hard drive disabled  | 
 J8/pins 2 & 3  | 
 closed  | |