Overview—IP2022 User’s Manual 6 www.ubicom.com Sophisticated   Power   and   Frequency/Clock   Management
Support • Operating voltage of 2.3V to 2.7V • Switching  the  system  clock  frequencies  between  different
clock sources • Changing the core clock using a selectable divider • Shutting down the PLL and/or the OSC input • Dynamic CPU speed control with speed instruction • Power-On-Reset (POR) logic Flexible I/O • 52 I/O Pins • 2.3V to 3.3V symmetric CMOS output drive • 5V-tolerant inputs • Port A pins capable of sourcing/sinking 24 mA • Optional I/O synchronization to CPU core clock Programming and Debugging Support • Updateable application program
– Run-time self programming • On-chip in-system programming interface • On-chip in-system debugging support interface • Debugging at full IP2022 operating speed • Programming at device supply voltage level • Real-time emulation, program debugging, and integrated soft-
ware development environment offered by leading third-party
tool vendors