Question: 1) Write a program to toggle all the bits of P2 and P3 continuously a) using AAH and 55H b) using the CPL instruction.

1) Write a program to toggle all the bits of P2 and P3 continuously a) using AAH and 55H b) using the CPL instruction. 2) What is the advantage of bit-addressability for 8051 ports? 3) Write a program to monitor the P3.0 bit. When it is low, send 99H to P1. If it is high, send 66H to Pl.

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