Maxim Integrated Secure Microcontroller - Manual (Page 11)

Secure Microcontroller User’s Guide
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• Random number generator
• Firmware bootstrap loader resides in a 16kB factory-programmed ROM
8051 Compatible with Expanded Addressing
• 4-clock/machine cycle architecture (25MHz/6.25 MIPS)
• Contiguous address space accesses up to 4MB program + 4MB data external memory
• Four 8-bit ports, one 6-bit port
Advanced Features
• CRC-16/32 generator
• Secure bootstrap loader resides in a 16kB factory-programmed ROM
• RTC with alarm interrupt and wake-up
• 5kB internal SRAM (1kB can be used as a stack for high-level language support)
• Dual data pointers with increment/decrement
• Programmable length MOVX instructions
• Power-fail/power-on reset circuits
• Watchdog timer