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NEC D7220AD

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The D7220AD graphics chip in NMOS technology, was mounted on some DEC stations, including the DEC Rainbow 100, NCR DMV. Features : Microprocessor Interface DMA transfer with 8257 or 8237 controllers FIFO Command Buffering Dispaly Memory Interface : Up to 256k words of 16 bits Read-Modify-Write (RMW) Display ; emory cicles in under 800ns Dynamic...

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