[SOLVED] What is the 1T in "1T-8051 core" refer to ?

The MPC82E/L52 is a single-chip microcontroller based on a high performance 1-T architecture 80C51 CPU that
executes instructions in 1~6 clock cycles (about 6~7 times the rate of a standard 8051 device), and has an 8051
compatible instruction set. Therefore at the same performance as the standard 8051, the MPC82E/L52 can
operate at a much lower speed and thereby greatly reduce the power consumption.

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The N76E003 executes all the instructions of the standard 80C51 family fully compatible with MCS-51.
However, the timing of each instruction is different for it uses high performance 1T 8051 core. The
architecture eliminates redundant bus states and implements parallel execution of fetching, decode,
and execution phases. The N76E003 uses one clock per machine-cycle. It leads to performance
improvement of rate 8.1 (in terms of MIPS) with respect to traditional 12T 80C51 device working at the
same clock frequency.

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