Question 15865 – STQC-NIELIT SC-B 2021
December 5, 2023GATE 2022
December 5, 2023Question 542 – DMA
Two control signals in microprocessor which are related to Direct Memory Access (DMA) are
Correct Answer: D
Question 11 Explanation:
HOLD (Hold) is a control signal input and HLDA (Hold acknowledge) is a control signal output.
These two signals are used for hand shaked control during DMA operation (Direct Memory Access)
These two signals are used where there is more than one CPU like devices sharing the same system bus
These two signals are used for hand shaked control during DMA operation (Direct Memory Access)
These two signals are used where there is more than one CPU like devices sharing the same system bus
INTR & INTA
RD & WR
S0 & S1
HOLD & HLDA