 (At the Amiga)
 (At the Amiga)
23 PIN D-SUB FEMALE at the Amiga.
| Pin | Name | Dir | Description | 
|---|---|---|---|
| 1 | /RDY |  | Disk Ready | 
| 2 | /DKRD |  | Disk Read Data | 
| 3 | GND |  | Ground | 
| 4 | GND |  | Ground | 
| 5 | GND |  | Ground | 
| 6 | GND |  | Ground | 
| 7 | GND |  | Ground | 
| 8 | /MTRXD | OC | Disk Motor Control | 
| 9 | /SEL2 | OC | Select Drive 2 | 
| 10 | /DRES | OC | Disk Reset | 
| 11 | /CHNG |  | Disk Removed From Drive-Latched Low | 
| 12 | +5V |  | +5 Volts DC (250 mA max) | 
| 13 | /SIDE |  | Select Disk Side (0=Upper, 1=Lower) | 
| 14 | /WPRO |  | Disk is Write Protected | 
| 15 | /TKO |  | Drive Head position over Track 0 | 
| 16 | /DKWE | OC | Disk Write Enable | 
| 17 | /DKWD | OC | Disk Write Data | 
| 18 | /STEP | OC | Step the Head-Pulse, First low, then high | 
| 19 | DIR | OC | Select Head Direction (0=Inner, 1=Outer) | 
| 20 | /SEL3 | OC | Select Drive 3 | 
| 21 | /SEL1 | OC | Select Drive 1 | 
| 22 | /INDEX | OC | Disk Index Pulse | 
| 23 | +12V |  | +12 Volts DC (160 mA max, 540 mA surge |