The SS M8051TC is fully instruction set compatible to standard 8051 and provides all external interface signals that legacy core provides. The design of SS M8051TC can be configured to derive legacy 8051 whose machine cycle is of 12 clock cycles and also turbo version of 8051 which takes 4 clock cycles per machine cycle. The Turbo version features a faster running CPU and improves performance by an average of 1.5 to 3 times over legacy 8051. In turbo version, length of memory access due to MOVX instruction can be programmed between 2 to 9 machine cycles to work efficiently with both fast and slow memories/peripherals.
The Serial port has the enhanced features of Automatic Address recognition and Frame Error detection.