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 Macintosh External Floppy

Macintosh External floppy

Type: DB19

Pin Function Details
1 CGND Chassis ground
2 CGND Chassis ground
3 CGND Chassis ground
4 CGND Chassis ground
5 -12V -12 VDC
6 +5V +5 VDC
7 +12V +12 VDC
8 +12V +12 VDC
9 n/c Not connected
10 PWM Regulates speed
11 CA0 Control line
12 CA1 Control line
13 CA2 Control line
14 LSTRB Control line
15 WrReq- Turns on the ability to write data
16 HdSel Control line
17 Enbl2- Enables the Rd line (else Rd is tristated)
18 Rd Data read
19 Wr Data write



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