High Quality Content by WIKIPEDIA articles! The Western Design Center (WDC) W65C265S microcomputer is a complete fully static 16-bit computer fabricated on a single chip using a Hi-Rel low power CMOS process. The W65C265S complements an established and growing line of 65xx products and has a wide range of microcomputer applications. The W65C265S has been developed for Hi-Rel applications and where minimum power is required. The W65C265S consists of a W65C816S (Static) Central Processing Unit (CPU), 8 kB of Read Only Memory (ROM), 576 bytes of Random Access Memory (RAM), Processor defined cache under software control, eight 16-bit timers with maskable interrupts, high performance interrupt-driven Parallel Interface Bus (PIB), four Universal Asynchronous Receivers and Transmitters (UART) with baud rate timers, Monitor "Watch Dog" Timer with "restart" interrupt, twenty-nine priority encoded interrupts, Built-in Emulation features, Time of Day (ToD) clock features, Twin Tone Generators (TGx), Bus Control Register (BCR) for external memory bus control, interface circuitry for peripheral devices, ABORT input for low cost virtual memory interface, and many low power features.

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