/* Set the cpu speed in clocks per machine cycle, valid values are:
1024: Divide-by-1024 (power management) mode (screws ALL timers and serial)
4: Standard 8051 divide-by-4 mode
/* Set the cpu speed in clocks per machine cycle, valid values are:
1024: Divide-by-1024 (power management) mode (screws ALL timers and serial)
4: Standard 8051 divide-by-4 mode