The
Western Design Center (WDC) W65C265S is a 16-bit CMOS
microcontroller
A microcontroller (MCU for ''microcontroller unit'', often also MC, UC, or μC) is a small computer on a single VLSI integrated circuit (IC) chip. A microcontroller contains one or more CPUs (processor cores) along with memory and programmable i ...
based on a
W65C816S
The W65C816S (also 65C816 or 65816) is an 8/16-bit microprocessor (MPU) developed and sold by the Western Design Center (WDC). Introduced in 1985, the W65C816S is an enhanced version of the WDC 65C02 8-bit MPU, itself a CMOS enhancement of the ...
processor core, which is a superset of the
MOS Technology 6502 processor.
The W65C265S consists of a fully static
W65C816S
The W65C816S (also 65C816 or 65816) is an 8/16-bit microprocessor (MPU) developed and sold by the Western Design Center (WDC). Introduced in 1985, the W65C816S is an enhanced version of the WDC 65C02 8-bit MPU, itself a CMOS enhancement of the ...
CPU
A central processing unit (CPU), also called a central processor, main processor or just processor, is the electronic circuitry that executes instructions comprising a computer program. The CPU performs basic arithmetic, logic, controlling, and ...
core, 8
KB of
ROM containing a
machine language monitor
A machine code monitor ( machine language monitor) is software that allows a user to enter commands to view and change memory locations on a computer, with options to load and save memory contents from/to secondary storage. Some full-featured m ...
, 576
bytes of
SRAM, a
processor cache under software control, eight 16-bit timers with maskable interrupts, an interrupt-driven
parallel bus (PIB), four
universal asynchronous receiver-transmitters (UARTs), a
watchdog timer that fires a restart interrupt, twenty-nine priority encoded interrupts, a time-of-day clock, two sound generators, a 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.
Features
* Hi-Rel low power CMOS process
* Operating
ambient temperature range is 0 °C to +70 °C
* Single 2.8 V to 5.5 V power supply
* Static to 8 MHz clock operation, as well as 32.768KHz capability
*
W65C816S
The W65C816S (also 65C816 or 65816) is an 8/16-bit microprocessor (MPU) developed and sold by the Western Design Center (WDC). Introduced in 1985, the W65C816S is an enhanced version of the WDC 65C02 8-bit MPU, itself a CMOS enhancement of the ...
compatible CPU
* 16
MB linear address space
* Twenty-nine priority encoded interrupts
* Four UARTS's
* Time of Day (ToD) clock features
* 8 x 16 bit timer/counters
* Bus Control Register
* Many bus operating features and modes
* 8 Programmable chip select outputs
* Low cost surface mount 84 and 100 lead packages
* Automatically shifts speed for slow memory or peripherals
See also
*
WDC 65C134
The Western Design Center (WDC) W65C134S is an 8-bit CMOS microcontroller based on a W65C02S processor core, which is a superset of the MOS Technology 6502 processor.
The W65C134S consists of a fully static 8-bit W65C02S CPU core, 4 KB of R ...
- an 8-bit microcontroller based around a
WDC 65C02 processor core
References
Further reading
External links
W65C265S website- Western Design Center (WDC)
W65C265S datasheet- WDC
W65C265S monitor ROM manual- WDC
65xx microprocessors
16-bit microprocessors
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