| Pinout for:Internal Diskdrive |
Description : Internal Diskdrive
34 PIN IDC MALE at the computer & diskdrives
Pinout :
| Pin | Name | Description |
| 1 | GND | Ground |
| 2 | /REDWC | Density Select |
| 3 | GND | Ground |
| 4 | n/c | Reserved |
| 5 | GND | Ground |
| 6 | n/c | Reserved |
| 7 | GND | Ground |
| 8 | /INDEX | Index |
| 9 | GND | Ground |
| 10 | /MOTEA | Motor Enable A |
| 11 | GND | Ground |
| 12 | /DRVSB | Drive Sel B |
| 13 | GND | Ground |
| 14 | /DRVSA | Drive Sel A |
| 15 | GND | Ground |
| 16 | /MOTEB | Motor Enable B |
| 17 | RES | Reserved |
| 18 | /DIR | Direction |
| 19 | GND | Ground |
| 20 | /STEP | Step |
| 21 | GND | Ground |
| 22 | /WDATE | Write Data |
| 23 | GND | Ground |
| 24 | /WGATE | Floppy Write Enable |
| 25 | GND | Ground |
| 26 | /TRK00 | Track 0 |
| 27 | RES | Reserved |
| 28 | /WPT | Write Protect |
| 29 | GND | Ground |
| 30 | /RDATA | Read Data |
| 31 | GND | Ground |
| 32 | /SIDE1 | Head Select |
| 33 | GND | Ground |
| 34 | /DSKCHG | Disk Change |
Note : The connector on a floppy drive consists of 34 conductors. Both control and data use this same cable. Most cables have a twist that interchanges pins 10 through 16 at the end of the cable (on 1). Most floppy connectors have a "key" between pins & 6, and 3 & 5, to prevent the cable from being reversed. At the other end, the dual row connector that attaches to the controller card will usually have a set of ridges that coincide with cutouts in the controller card's connector. Note that old style floppy-only controllers used a card-edge connector just like that of the drive.