Optional Memory Protection Unit (MPU) with up to eight regions
Interrupts
Non-Maskable Interrupt (NMI) and up to 32 physical interrupts
Wake-up Interrupt Controller (WIC)
Optional for waking up the processor from state retention power gating or when all clocks are stopped
Sleep Modes
Integrated Wait For Interrupt (WFI) and Wait For Event (WFE) instructions and Sleep On Exit capability
Sleep and Deep Sleep signals
Optional retention mode with Arm Power Management Kit
Enhanced Instructions
Hardware single-cycle (32*32) multiply
Debug
Optional JTAG and Serial Wire Debug ports Up to four breakpoints and two watchpoints