UNIDENTIFIED
H/FDC ADAPTER
| 
 Card Type  | 
 Hard drive controller  | 
| 
 Hard Drives supported  | 
 Two IDE (AT) drives  | 
| 
 Floppy drives supported  | 
 Two 360KB, 720KB, 1.2MB, 1.44MB  | 
| 
 Data Bus  | 
 16-bit ISA  | 
| 
 Card Size  | 
 Half-length, full-height  | 
| 
 CONNECTIONS  | |||
| 
 Function  | 
 Label  | 
 Function  | 
 Label  | 
| 
 34-pin cable connector - floppy drive  | 
 CN1  | 
 2-pin connector - drive active LED  | 
 J1  | 
| 
 40-pin IDE(AT) connector  | 
 CN2  | ||
| 
 USER CONFIGURABLE SETTINGS  | |||
| 
 Function  | 
 Label  | 
 Position  | |
| » | 
 One hard drive in system  | 
 J2  | 
 Open  | 
| 
 Two hard drives in system  | 
 J2  | 
 Closed  | |
| » | 
 IOCHRDY signal disabled  | 
 J3  | 
 Open  | 
| 
 IOCHRDY signal enabled  | 
 J3  | 
 Closed  | |
| » | 
 Host system acknowledges Interrupt status register  | 
 J4  | 
 Pins 1 & 2 closed  | 
| 
 Host system ignores Interrupt status register  | 
 J4  | 
 Pine 2 & 3 closed  | |
| » | 
 300KPS for DP8473 enabled  | 
 J5  | 
 Pins 1 & 2 closed  | 
| 
 250KPS for DP8473 enabled  | 
 J5  | 
 Pins 2 & 3 closed  | |
| » | 
 Proper precompensation value for DP8473 floppy drive enabled  | 
 J6  | 
 Pins 2 & 3 closed  | 
| 
 Precompensation control for DP8473 floppy drive disabled  | 
 J6  | 
 Pins 1 & 2 closed  | |
| » | 
 Floppy drive interface enabled  | 
 J7  | 
 Open  | 
| 
 Floppy drive interface disabled  | 
 J7  | 
 Closed  | |
| » | 
 IDE(AT) interface enabled  | 
 J8  | 
 Open  | 
| 
 IDE(AT) interface disabled  | 
 J8  | 
 Closed  | |
| » | 
 IDE primary address enabled  | 
 J9  | 
 Pins 2 & 3 closed  | 
| 
 IDE secondary address enabled  | 
 J9  | 
 Pins 1 & 2 closed  | |