Amiga A4000 - FLOPPY Port

8-12
FLOPPY Port
FLOPPY Port
Connector type: D823 female (external)
@ ••••••••••••••••••••••• @
Pin Name 110
Description
1 IRDY I/O Disk Ready
2
IDKRD Disk Read Data
3-7
GND
Ground
8
IMTRXD
OC·
Disk Motor Control
9
ISEL3
OC·
Select Drive 3
10 IDRES
OC·
Disk Reset
11 ICHNG I/O
Disk Removed From Drive--Latched Low
12
+5V
+5 Volts DC (250 mA maximum)
13
ISIDE
0
Select Disk Side--O=Upper, 1 =Lower
14
IWPRO I/O Disk Is Write Protected
15 ITKO I/O Drive Head Position Over Track 0
16 IDKWE
OC·
Disk Write Enable
17 IDKWD
OC·
Disk Write Data
18 ISTEP
OC·
Step The Head--Pulse, First Low, Then High
19
DIR
OC·
Select Head Direction--O=lnner,
1=Outer
20 n/c
no connect
21 ISEL2
OC·
Select Drive 2
22 IINDEX I/O Disk Index Pulse
23 +12V
+12 Volts DC (160 mA max" 540 mA surge)
*OC=open collector