The 6522 Versatile Interface Adapter (VIA) provides all of the capability of the 6520.1 n addition, this device contains a pair of very powerful interval timers, a serial-to-parallellparallel-to-serial shift register and input data latching on the peripheral ports.
Key Features
of this chip, the internal registers have been organized into an interrupt fla.
Full PDF Text Transcription for MPS6522 (Reference)
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INTERFACE ADAPTER DESCRIPTION The 6522 Versatile Interface Adapter (VIA) provides all of the capability of the 6520.1 n addition, this device contains a pair of very powerful interval timers, a serial-to-parallellparallel-to-serial shift register and input data latching on the peripheral ports. Expanded handshaking capability allows control of bi-directional data transfers between VIA's in multiple processor systems. Control of peripheral devices is handled primarily through two 8-bit bi-directional ports. Each of these lines can be programmed toactaseitheran inputoran output.
MPS6522 Datasheet
