Abstract
Using a one-chip programmable peripheral interface LSI (8255A), an inexpensive micro-computer (8K PET) peripheral I/O expansion can easily be constructed.
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This research was supported in part by Research Grant 401059 from the Japan Ministry of Education and by Grant 79-1-072 from the Toyota Foundation.
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Osaka, N. An inexpensive microcomputer peripheral I/O expansion. Behavior Research Methods & Instrumentation 12, 344–345 (1980). https://doi.org/10.3758/BF03201670
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DOI: https://doi.org/10.3758/BF03201670