IP2022 User’s Manual—Overview www.ubicom.com 3 analog   comparator,   LFSR   units,   external   memory   interface,
brown-out  power  voltage  detector,  watchdog  timer,  low-power
support,  multi-source  wakeup  capability,  user-selectable  clock
modes, high-current outputs, and 52 general-purpose I/O pins. A  TCP/IP  network  protocol  stack  is  available,  and  a  variety  of
additional software that is necessary to form a complete end-to-
end connectivity solution is being developed. Tools for developing
with  and  using  the  IP2022,  including  the  complete  Red  Hat
GNUPro tools, are available from leading suppliers. 1.1 Key Features • CPU Features • RISC engine core with DC to 100 MHz operation • 10 ns instruction cycle • Compact 16-bit fixed-length instructions • Single-cycle instruction execution on most instructions (3 cy-
cles for jumps and calls) • 16-level hardware stack for high-performance subroutine link-
age • 8 × 8 signed/unsigned single-cycle multiply • Pointers and stack operation optimized for C compiler • Uniform, linear address space (no register banks)