📝 Counter or Digital Ramp Type A/D Converter in 8085 Microprocessor

Q1. In a DMA controller, what function does the Enable bit (D7) in the Mode Set Register serve?

💡 Difficulty: easy | ✅ Correct: A

Q2. If a DMA transfer must move 1024 bytes using a channel, which two bytes should be loaded into the terminal‑count register (LSB first, then MSB)?

💡 Difficulty: medium | ✅ Correct: B

Q3. Why does a digital ramp ADC require a stable reference voltage throughout the counting process?

💡 Difficulty: hard | ✅ Correct: B