TI-H: Disk Drive pinout
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TI-H: Disk Drive pinout
Here's the pinout for a disk drive.
At the computer
Pin Name Dir Description
2 /REDWC < Reduced Write Current
4 n/c - Reserved
6 n/c - Reserved
8 n/c - Reserved
10 /FD2S < Disk is two sided
12 /DCG < Disk has been changed/door open
14 /SIDE > Side select
16 /DLOCK > Door lock
18 /HLD > Head load
20 /INDEX < Index Pulse
22 /READY < Ready
24 n/c - Not connected
26 /SEL1 < Select Drive 1
28 /SEL2 < Select Drive 2
30 /SEL3 < Select Drive 3
32 /SEL4 < Select Drive 4
34 /DIR > Direction
36 /STEP > Step
38 /WDAT > Write data
40 /WGAT > Write gate
42 /TR00 < Track 00 (Zero)
44 /WPROT < Write protect
46 /RDATA < Read data
48 n/c - Not connected
50 n/c - Not connected
Note: Direction is Computer relative Diskdrive.
Note: All odd pins are GND, Ground.
Information from The Hardware Book
There.
Jeff Rapp
jrapp@geocities.com