2xSDS drive info

gistfile1.txt

 =======================
 1.4Mb 2xSDS
 Y-E Data 6130S or 6331S
 =======================

 600 RPM (Normal)     720 RPM *
 -------------------  -------------
 ET ''                ET ''
 PC ''                PC ''
 IT ''                IT ''
 MD ''                MD ==
 DI ''  '' RY         DI ''  '' RY
 M2 ''  == DC         M2 ==  == DC
 M1 ==  '' Aux        M1 ==  '' Aux
 P2 ''  == DS1        P2 ''  == DS1
 P1 ''  '' DS0        P1 ''  '' DS0

 ('' is open, == is jumpered)

 * 720 RPM is only supported with the Allegro II controller.
 - Most controllers will also support the use of DS0 with this drive.

=============

Y-E Data and Alf SDS Interfaces

The ALF and Y-E Data SDS interfaces allow you to hook up an SDS drive using
a single 34 pin ribbon cable.

Below is a list of pins that differ from the normal floppy pin assignments
for these interfaces:
     Interface:  Normal      Y-E Data        Alf
     -------------------------------------------
     Pin
     3            GND          DS1           GND
     4             NC           NC        WE HD1
     6             NC       RD HD1            NC
     10           ME0          DS0           DS0
     12           DS1       WE HD1           DS1
     14           DS0       WD HD1        WD HD1
     34       DSK CHG.     DSK CHG.       RD HD1

(RD = read data, WD = write data, HD = head, DS = drive select, NC = no connect)