📖 From An Introduction To Microprocessor 8085 • 13. Interfacing Data converters: A/D and D/A Converters • 17 questions available
Practice MCQs for ADC 0808/0809 in 8085 Microprocessor. Test your knowledge with carefully crafted questions across easy, medium, and hard difficulty levels.
🔄 Last updated: 2026-07-30
Q1. What is the typical conversion time of the ADC0808 when operating at its maximum clock frequency?
💡 Difficulty: easy | ✅ Correct: A
Q2. A system needs to transfer 1024 bytes from memory address 0x3000 to a floppy using channel 1. Which sequence of OUT instructions correctly programs the Mode Set Register (address 0x28) for a read operation, the terminal‑count registers (addresses 0x23 LS, 0x24 MS), and the DMA address registers (addresses 0x22 LS, 0x23 MS)?
💡 Difficulty: medium | ✅ Correct: A
Q3. In the terminal‑count register, bits D15 and D14 are set to 1 0 to indicate a memory‑read operation. What would happen if these bits were mistakenly set to 0 1?
💡 Difficulty: hard | ✅ Correct: A
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