


Apple Macintosh Internal Floppy disk drive
20 PIN UNKNOWN CONNECTOR
| Pin |
Name |
Description |
| 1 |
GND |
Ground |
| 2 |
PH0 |
Phase 0: state control line |
| 3 |
GND |
Ground |
| 4 |
PH1 |
Phase 1: state control line |
| 5 |
GND |
Ground |
| 6 |
PH2 |
Phase 2: state control line |
| 7 |
GND |
Ground |
| 8 |
PH3 |
Phase 3: register write strobe |
| 9 |
+5V |
+5 volts |
| 10 |
/WRREQ |
Write data request |
| 11 |
+5V |
+5 volts |
| 12 |
SEL |
Head select |
| 13 |
+12V |
+12 volts |
| 14 |
/ENBL |
Drive enable |
| 15 |
+12V |
+12 volts |
| 16 |
RD |
Read data |
| 17 |
+12V |
+12 volts |
| 18 |
WR |
Write data |
| 19 |
+12V |
+12 volts |
| 20 |
n.c. |
Not connected |
| Source: |
Apple Power Macintosh 5400 Developer Note
|
Copyright © The Hardware Book Team 1996-2004.
May be copied and redistributed, partially or in whole, as appropriate.
Document last modified: 2002-01-10