{ Number of instructions: 74 { Minimum instruction execution time: 59 ns (@ 17 MHz operation with main system clock (fXX)) 50 ns (@ 20 MHz operation with main system clock (fXX)) 30.5 µs (@ 32.768 kHz operation with subsystem clock (fXT)) { General-purpose registers: 32 bits × 32 registers { Instruc.