📖 From An Introduction To Microprocessor 8085 • 14. Serial Communication and Programmable Communication Interface • 9 questions available
Practice MCQs for Receiver Section in 8085A Microprocessor. Test your knowledge with carefully crafted questions across easy, medium, and hard difficulty levels.
🔄 Last updated: 2026-07-30
Q1. What is the number of bits used in the terminal count register to store the byte count for a DMA transfer?
💡 Difficulty: easy | ✅ Correct: B
Q2. A system needs to move 20 KB of data using the 8257 DMA controller. Which strategy correctly accomplishes the transfer without exceeding the 16 KB limit of a single DMA operation?
💡 Difficulty: medium | ✅ Correct: B
Q3. A microcontroller has four DMA channels, but Channel 0 is reserved for a high‑priority audio stream. An I/O device requires an 8‑bit interface and a 10 KB transfer. Which channel should be assigned to this device?
💡 Difficulty: hard | ✅ Correct: C
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