Re: Need help identifying cards

["Mirko" <mirko@yack.com>]

First cart :

The 8272 is a floppy disk drive controller

http://andercheran.aiind.upv.es/~amstrad/docs/i8272/8272sp.htm

this might be a double density controller for double density disk drives

[...]
The 8272 is a LSI Floppy Disk Controller (FDC) Chip, which contains the 
curcuitry and control functions for interfacing a processor to 4 Floppy Disk 
Drives. It is capable of supporting either IBM 3740 single density format 
(FM), or IBM System 34 Double Density format (MFM) including double sided 
recording. The 8272 provides control signals which simplify the design of an 
external phase locked loop, and write precompensation circuitry. The FDC 
simplifies and handles most of the burdens associated with implementing a 
Floppy Disk Drive Interface
[...]


Mirko

"Werz" <rpowers@ecasd.k12.wi.us> ha scritto nel messaggio 
1114654254.551532.106380@z14g2000cwz.googlegroups.com">news:1114654254.551532.106380@z14g2000cwz.googlegroups.com...
> Thanks, Ed! You should be able to see the images at the URLs below.
> -Ron
>
> http://images5.theimagehosting.com/MYST.JPG
>
> http://images5.theimagehosting.com/TWSYS.jpg
>
> http://images5.theimagehosting.com/ATLDAT.jpg
>