According to the design requirements and the design content, describe the CPU model, and briefly describe the internal resources of the selected CPU and the pin structure diagram.<br>THE TB9C2051 is a microcontroller with a 2K byte flashing programmable erasable read-only memory. The microcontroller's eraable read-only store can be erased 1,000 times. Manufactured using ATMEL high-density non-volatile memory manufacturing technology, the device is compatible with the industrial standard MCS-51 instruction set and the hanpins. The ATMEL A851 is an efficient emblem controller, and the AT8C2051 is a streamlined version of it, thanks to the combination of a versatile 8-bit CPU and a flashing storage device in a single chip. The AT89S51 microcontroller provides a high-flexibility and inexpensive solution for many embedded control systems. The form factor and pinout are shown in Fig. 3-2-1.
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