? Only 42 single word instructions? All instructions are single cycle except for program branches which are two-cycle? 13-bit wide instructions? All ROM/EPROM area GOTO instruction? All ROM/EPROM area subroutine CALL instruction? 8-bit wide data path? 5-level deep hardware stac? Direct, indirect addressing modes for data accessing? 8-bit real time clock/counter (Timer0) with 8-bit programmable prescaler? Internal Power-on Reset (POR)? Built-in Low Voltage Detector (LVD) for Brown-out Reset (BOR)? Power-up Reset Timer (PWRT) and Oscillator Start-up Timer(OST)? On chip Watchdog Timer (WDT) with internal oscillator for reliable operation and soft-ware watch-dogenable/disable control? Two I/O ports IOA and IOB with independent direction control? Soft-ware I/O pull-high/pull-down or open-drain control? One internal interrupt source: Timer0 overflow; Two external interrupt source: INT pin, Port B input change? Wake-up from SLEEP by INT pin or Port B input change? Power saving SLEEP mode? Built-in 8MHz, 4MHz, 1MHz, and 455KHz internal RC oscillator? Programmable Code Protection? Built-in internal RC oscillator? Selectable oscillator options:- ERC: External Resistor/Capacitor Oscillator- HF: High Frequency Crystal/Resonator Oscillator- XT: Crystal/Resonator Oscillator- LF: Low Frequency Crystal Oscillator- IRC: Internal Resistor/Capacitor Oscillator- ERIC: External Resistor/Internal Capacitor Oscillator