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8255

216 bytes added, 08:14, 24 October 2011
/* 8255 Part numbers used in the CPC during it's lifetime */
* NEC D8255AC-5
* Toshiba TMP8255AP-5
 
All of these are almost identical in their operation. It is possible to detect each version by writing and then reading from the ppi control i/o port. Each can give a different pattern of values that are read back.
== The 8255 in the CPC ==
2,562
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