operating range: ? up to 40 mips operation (at 3.0-3.6v): - industrial temperature range (-40°c to +85°c) high-performance cpu: ? modified harvard architecture ? c compiler optimized instruction set ? 16-bit wide data path ? 24-bit wide instructions ? linear program memory addressing up to 4m instruction words ? linear data memory addressing up to 64 kbytes ? 71 base instructions: mostly 1 word/1 cycle ? sixteen 16-bit general purpose registers ? flexible and powerful indirect addressing modes ? software stack ? 16 x 16 multiply operations ? 32/16 and 16/16 divide operations ? up to ±16-bit data shifts direct memory access (dma): ? 8-channel hardware dma ? 2 kbytes dual ported dma buffer area (dma ram) to store data transferred via dma: - allows data transfer between ram and a peripheral while cpu is executing code (no cycle stealing) ? most peripherals support dma interrupt controller: ? 5-cycle latency ? up to 61 available interrupt sources ? up to five external interrupts ? seven programmable priority levels ? five processor exceptions digital i/o: ? up to 85 programmable digital i/o pins ? wake-up/interrupt-on-change on up to 24 pins ? output pins can drive from 3.0v to 3.6v ? all digital input pins are 5v tolerant ? 4 ma sink on all i/o pins on-chip flash and sram: ? flash program memory, up to 256 kbytes ? data sram, up to 16 kbytes (includes 2 kbytes of dma ram) system management: ? flexible clock options: - external, crystal, resonator, internal rc - fully integrated pll - extremely low jitter pll ? power-up timer ? oscillator start-up timer/stabilizer ? watchdog timer with its own rc oscillator ? fail-safe clock monitor ? reset by multiple sources power management: ? on-chip 2.5v voltage regulator ? switch between clock sources in real time ? idle, sleep and doze modes with fast wake-up timers/capture/compare/pwm: ? timer/counters, up to nine 16-bit timers: - can pair up to make four 32-bit timers - one timer runs as real-time clock with external 32.768 khz oscillator - programmable prescaler ? input capture (up to eight channels): - capture on up, down or both edges - 16-bit capture input functions - 4-deep fifo on each capture ? output compare (up to eight channels): - single or dual 16-bit compare mode - 16-bit glitchless pwm mode