Data Sheet

NUC123
May 3, 2017 Page 29 of 99 Rev.2.04
NUC123 SERIES DATASHEET
– 32 external interrupt inputs, each with four levels of priority
– Dedicated Non-Maskable Interrupt (NMI) input
– Supports both level-sensitive and pulse-sensitive interrupt lines
– Supports Wake-up Interrupt Controller (WIC) with ultra-low power sleep mode
 Debug support
– Four hardware breakpoints
– Two watchpoints
– Program Counter Sampling Register (PCSR) for non-intrusive code profiling
– Single step and vector catch capabilities
 Bus interfaces:
– Single 32-bit AMBA-3 AHB-Lite system interface providing simple integration to
all system peripherals and memory
– Single 32-bit slave port supporting the DAP (Debug Access Port)