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M054ZBN Datasheet, PDF (20/68 Pages) List of Unclassifed Manufacturers – 32-BIT MICROCONTROLLER
NuMicro™ M052/M054BN Data Sheet
 C Application Binary Interface compliant exception model.
This is the ARMv6-M, C Application Binary Interface(C-ABI) compliant exception model
that enables the use of pure C functions as interrupt handlers.
 Low power sleep-mode entry using Wait For Interrupt (WFI), Wait For Event(WFE)
instructions, or the return from interrupt sleep-on-exit feature.
NVIC features:
 32 external interrupt inputs, each with four levels of priority.
 Dedicated non-Maskable Interrupt (NMI) input.
 Support for both level-sensitive and pulse-sensitive interrupt lines
 Wake-up Interrupt Controller (WIC), supports 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 that provides simple integration to all
system peripherals and memory.
 Single 32-bit slave port that supports the DAP (Debug Access Port).
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Publication Release Date: Mar. 19, 2012
Revision V1.01