I/O Port Programming and Addressing Modes Questions and Answers

8051 Microcontroller Questions and Answers – I/O Port Programming and Addressing Modes This set of 8051 Micro-controller Multiple Choice Questions & Answers (MCQs) focuses on “I/O Port Programming and Addressing Modes”. 1. Which of the following registers are not bit addressable? a) SCON b) PCON c) A d) PSW 2. Which instruction is used to […]

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