HD64570 SCA Serial Communications Adaptor User's Manual
The HD64570 Serial Communications Adaptor (SCA) is a peripheral chip that enables a host microprocessor to perform asynchronous, byte‑synchronous, or bit‑synchronous serial communication. It features two full‑duplex, multiprotocol serial channels, a 32‑stage FIFO DMA controller, and a 16‑bit bus interface supporting data rates up to 12 Mbits/s.
The manual is organized into sections covering an overview, pin arrangements, system controller operation, interrupt controller logic, MSCI protocols, DMA controller modes, timer functions, wait controller, application examples, electrical specifications, package dimensions, and appendices with descriptor and register tables.