Re: Sider/ SASI Info

["Paul Grammens" <grammens@svn.net>]

I worked out some more info on the interface. The pinouts from the Atari
Xebec card,
my Apple II Xebec card (what I can determine by careful examination) and my
Sider terminator all jibe, so I think this is accurate.  It does look like a
straight thru cable is all that is required between the Apple II rear panel
and the Sider rear panel once this ribbon cable has been made.
-Paul


37 pin   2x25 pin
D-Sub      header

 1 ->  1  gnd
 2 ->  3  gnd
 3 ->  5  gnd
 4 ->  7  gnd
 5 ->  9  gnd
 6 -> 11  gnd
 7 -> 13  gnd
 8 -> 15  gnd
 9 -> 17  gnd
10 -> 19  gnd
11 -> 34  N/C on Xebec card
12 -> 36  -BSY
13 -> 38  -ACK Control w/term?
14 -> 40  -RST Control w/term?
15 -> 42  -MSG
16 -> 44  -SEL Control w/term?
17 -> 46  -CID
18 -> 48  -REQ
19 -> 50  -I/O
20 ->  2  Data bit 0
21 ->  4  Data bit 1
22 ->  6  Data bit 2
23 ->  8  Data bit 3
24 -> 10  Data bit 4
25 -> 12  Data bit 5
26 -> 14  Data bit 6
27 -> 16  Data bit 7
28 -> 18  N/C on Xebec card
29 -> 20  +5? Xebec card has jumper to this pin.
30 -> 35  gnd
31 -> 37  gnd
32 -> 39  gnd
33 -> 41  gnd
34 -> 43  gnd
35 -> 45  gnd
36 -> 47  gnd
37 -> 49  gnd

Source: Sider Fixed Disk Drive Subsystem User's Guide 106109-01 Rev. D
plus Atari Xebec card info.