FM151M is  a 32-bit  security chip with  multiple interfaces  including ISO7816,  SWP, UART, SPI,HSPI  and GPIO.  Its  built-in  memory is  implemented  with  a 1280KB  FLASH,  an  32KB RAM. Algorithms surported by the chip are symmetric algorithms SM1, SM7, SSF33, SM4, DES/3DES , asymmetric algorithms SM2, ECC RSA, and hash algorithms SM3, SHA1, SHA224  and SHA256. The security  chip has  a hardware true  random number  generator and  safety protection circuits built in and is capable of isolating and protecting multiuser programs.


Microprocessor
C-core CS322 integer processor
•32-bit reduced instruction set computer(RISC) architecture with fixed 16-bit instruction length
•Efficient 4-stage execution pipeline
•Maximum Operating Frequency: 80MHz
•Power Saving Mode: WAIT mode, DOZE mode, STOP mode
•Vectored and autovectored interrupt support
•Autovectored mode includes 2 autovector entries.
•Vectored mode includes 64 entries supporting 32 interrupt sources each.
3 16-bits programmable interrupt timers provided
•Built-in MPU (Integrated Memory Protection Unit)
•8 programmable regions with own access permission attributes
•Mutual isolation between different regions: Allow access to a region from within that region only, while accesses to the region by instructions located elsewhere are prohibited