Processor core
ARM Cortex-M3 processor (version r2p1), running at frequencies of up to 180 MHz.
ARM Cortex-M3 built-in Memory Protection Unit (MPU) supporting eight regions.
ARM Cortex-M3 built-in Nested Vectored Interrupt Controller (NVIC).
Non-maskable Interrupt (NMI) input.
JTAG and S.