This page (revision-8) was last changed on 13-May-2024 19:13 by Carsten Strotmann 

This page was created on 20-Dec-2010 18:26 by Carsten Strotmann

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Version Date Modified Size Author Changes ... Change note
8 13-May-2024 19:13 8 KB Carsten Strotmann to previous
7 13-May-2024 19:06 8 KB Carsten Strotmann to previous | to last
6 13-May-2024 19:02 8 KB Carsten Strotmann to previous | to last
5 13-May-2024 18:58 7 KB Carsten Strotmann to previous | to last Schaltplan hinzugefuegt
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2 20-Dec-2010 18:27 7 KB Carsten Strotmann to previous | to last
1 20-Dec-2010 18:26 7 KB Carsten Strotmann to last

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At line 1 removed 11 lines
!!!High-Density Disk Interface
The HDI is the interface for connecting up to 4 standard
drives to the XL/XE. You can mix 3,5" and 5,25" floppies at will.
Required is that the drive supports the Disk Change signal at pin 34 of
the Shugart bus. It doesn't support Medium Density (128 bytes/sector in
MFM mode and 1.2 MB drives). Maximum transfer rate: 500 Kbit/s (1.44
MByte disks).
The HDI has been developed in 1991 by Erhard Pütz (FloppyDoc).
At line 14 removed 11 lines
[HDI Interface/HDI-CAS.jpg]
!!Manual:
HDI Manual: [HDI Interface/HDI_Manual.pdf]
\\
HDI Schematics [HDI Interface/sch_hdi.png] (PDF: [HDI Interface/sch_hdi.pdf])
\\
At line 4 added one line