lXtensa ISA (Instruction Set Architecture) enables configurability, minimizes code size, reduces power dissipation, and maximizes performance.
lBase ISA defines approximately 80 instructions (superset of traditional 32-bit RISC instruction
sets).
lAchieves smaller code size with the use of denser encoding and register window.
¡Compiler use smaller instructions for most common operations.
¡Register window eliminates register saves and restores
at entry and exit of subroutines.
l24-bit and 16-bit instruction formats.