Pin | Name | 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 | Disk Motor Control |
9 | /SEL2 | Select Drive 2 |
10 | /DRES | 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 | Disk Write Enable |
17 | /DKWD | Disk Write Data |
18 | /STEP | Step the Head-Pulse, First low, then high |
19 | DIR | Select Head Direction (0=Inner, 1=Outer) |
20 | /SEL3 | Select Drive 3 |
21 | /SEL1 | Select Drive 1 |
22 | /INDEX | Disk Index Pulse |
23 | +12V | +12 Volts DC (160 mA max, 540 mA surge |