Physics · Microprocessors - Direct Memory Access (DMA)

With respect to standard Intel 8237 DMA Control integrated with 8085 architecture, which of the following statements is NOT true?

Verified Solution4 OptionsUpdated: October 2026👁️1 View

1The 8085 microprocessor features HOLD and HLDA pins dedicated to managing the DMA Controller.
2Each individual channel of the controller has a native 16-bit word-count register.✓
3The basic controller features 4 independent channels that can handle peripheral I/O devices.
4In a DMA data transfer scheme, data is transferred directly between an I/O device and RAM without CPU core intervention.

Correct answer

Each individual channel of the controller has a native 16-bit word-count register.

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