8051 Microcontroller Interview Questions

8051 Microcontroller Interview Questions
1. What UART Function?
2.AT89S52 variant addtional features?
3.why banking?why all bank registers having same name??
4.What is memory organization?
5.12clock pulses.each clock pulse usage??states?
6. Why only R0,R1 for internal ram addressing?
7.Why it can support 64k rom in mcu???
8.Where Adress Latch used in AT89S52?
9.Explain ISP and SPI Protocols ?

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