■ Arm Cortex-M23 Core
● Armv8-M architecture
● Maximum operating frequency: 48 MHz
● Arm Memory Protection Unit (Arm MPU) with 8 regions
● Debug and Trace: DWT, FPB, CoreSight™ MTB-M23
● CoreSight Debug Port: SW-DP
■ Memory
● Up to 128-KB code flash memory
● 4-KB data flash memory (100,000 program/erase (P/E) cycles)
● 16-KB SRAM
● Memory protection units
● 128-bit unique ID
■ Connectivity
● Serial Communications Interface (SCI) × 4
– Asynchronous interfaces
– 8-bit clock synchronous interface
– Simple IIC
– Simple SPI
– Smart card interface
● Serial Peripheral Interface (SPI) × 1
● I2C bus interface (IIC) × 1