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FLOPPY.TXT
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1992-08-25
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217 lines
Floppy Ports and Connectors
DB-25 External Floppy Drive Port
(All laptops except T1100)
--------------------------------
PIN Input/Output Signal
1 I Drive Ready
2 I Index
3 I Track 0
4 I Write Protect
5 I Read Data
6 I Disk Change (All Toshiba computers except T1000,
T1100 Plus, T1200)
7-9 not used
10 O Drive Select
11 O Motor On
12 O Write Data
13 O Write Gate
14 O Low Density (All Toshiba computers except T1000,
T1100 Plus, T1200)
15 O Side Select
16 O Direction
17 O Step
18-25 Signal Ground
(T1000 MUST have pins 24 and 25 grounded)
Toshiba 5.25" 360KB External Floppy Drive DB-25 Connector
---------------------------------------------------------
PIN Input/Output Signal
1 O Ready
2 I Side Select
3 O Read Data
4 O Write Protect
5 O Track 0
6 I Write Gate
7 I Write Data
8 I Step
9 I Direction
10 I Drive Select
11 I Motor On
12 O Index
13-25 Signal Ground
IBM XT 360KB Floppy Drive 34 Pin Card Edge Connector
----------------------------------------------------
PIN Input/Output Signal
2,4,6 Unused
8 O Index
10 I Motor Enable A
12 I Drive Select B
14 I Drive Select A
16 I Motor Enable B
18 I Direction
20 I Step Pulse
22 I Write Data
24 I Write Gate
26 O Track 0
28 O Write Protect
30 O Read Data
32 I Select Head 1
34 Unused
Odd Pins Signal Ground
IBM AT 1.2MB Floppy Drive 34 Pin Card Edge Connector
----------------------------------------------------
PIN Input/Output Signal
2 I High / Low Density
4 Reserved
6 I Drive Select 4
8 O Index
10 I Drive Select 1
12 I Drive Select 2
14 I Drive Select 3
16 I Motor On
18 I Direction Select
20 I Step
22 I Write Data
24 I Write Gate
26 O Track 0
28 O Write Protect
30 O Read Data
32 I Side Select
34 O Disk Change / Ready
Odd Pins Signal Ground
IBM AT 360KB Floppy Drive 34 Pin Card Edge Connector
----------------------------------------------------
PIN Input/Output Signal
2 Reserved
4 I In Use
6 I Drive Select 4
8 O Index
10 I Drive Select 1
12 I Drive Select 2
14 I Drive Select 3
16 I Motor On
18 I Direction Select
20 I Step
22 I Write Data
24 I Write Gate
26 O Track 0
28 O Write Protect
30 O Read Data
32 I Side Select
34 O Reserved / Ready
Odd Pins Signal Ground
Floppy Cables
Toshiba Laptops to IBM Floppy Drive
Toshiba Male DB-25 to 34 pin IBM-style Card Edge connector (shielded)
---------------------------------------------------------------------
360KB/720KB Floppy Drive 1.2MB Drive
(All except T1100) (All except T1000, T1100,
T1100 Plus, T1200F/FB/H/HB)
1 ---------- 33 & 34 Add
2 ---------- 8 6 ---------- 34
3 ---------- 26 14 -------- 2
4 ---------- 28 Change
5 ---------- 30 1 ---------- 33
6-9 ------- not connected
10 -------- 12
11 -------- 16
12 -------- 22
13 -------- 24
14 -------- not connected
15 -------- 32
16 -------- 18
17 -------- 20
18 -------- 19
19 -------- 21
20 -------- 23
21 -------- 25
22 -------- 27
23 -------- 29
24 -------- 31
25 -------- 17
Toshiba Laptops to Toshiba Ext. FDD or Toshiba PC Floppy Link (Except T1100)
(Toshiba PC Floppy Link has 2 position INT/EXT switch) (Toshiba cable)
Male DB-25 to Male DB-25 (shielded)
1 ---------- 1
2 ---------- 12
3 ---------- 5
4 ---------- 4
5 ---------- 3
10 -------- 10
11 -------- 11
12 -------- 7
13 -------- 6
15 -------- 2
16 -------- 9
17 -------- 8
18 -------- 21
19 -------- 14
20 -------- 25
21 -------- 18
23 -------- 15,17,22,23,24
24 -------- 20
25 -------- 19
Toshiba Laptops to Toshiba Universal Floppy Link (Toshiba cable)
(Toshiba Universal Floppy Link has 3 position A, B, INT switch)
Male DB-25 to Female DB-25 (shielded)
All wires straight thru example 1 to 1, 2 to 2, 3 to 3 etc.
7-9 not connected
Standard Centronics Compatible Parallel Port DB-25
(All TOSHIBA Portables)
PIN Input/Output Signal
1 O Strobe
2 O Data 0
3 O Data 1
4 O Data 2
5 O Data 3
6 O Data 4
7 O Data 5
8 O Data 6
9 O Data 7
10 I Acknowledge
11 I Busy
12 I Paper End
13 I Select
14 O Auto Feed
15 I Error (Fault)
16 O Initialize Printer
17 O Select Input
18-25 Signal Ground