Home / DMA Controller (8257) – 1 – 1

DMA Controller (8257) – 1 – 1

1. DMA stands for :

(a) Direct memory allocation
(b) Direct memory access
(c) Distinct memory allocation
(d) Distinct memory access

Answer
Answer : (b)

Explanation
No answer description available for this question. Let us discuss.

2. Which is the fastest DMA mode ?

(a) Cycle steal
(b) Hidden mode
(c) Block transfer
(d) None of these

Answer
Answer : (c)

Explanation
No answer description available for this question. Let us discuss.

3. 8257 can interface with ………….. IO devices.

(a) 2
(b) 3
(c) 4
(d) 5

Answer
Answer : (c)

Explanation
No answer description available for this question. Let us discuss.

4. Each of the channel in 8257 consists of :

(a) 14-bit counter resister
(b) 16-bit counter resister
(c) Both (a) & (b)
(d) None of these

Answer
Answer : (c)

Explanation
No answer description available for this question. Let us discuss.

5. How many clock cycles are used by 8257 to transfer a byte of data ?

(a) 2 clock cycle
(b) 4 clock cycle
(c) 6 clock cycle
(d) 8 clock cycle

Answer
Answer : (b)

Explanation
No answer description available for this question. Let us discuss.

1

General Knowledge Books

Be a Part of the New & Next

MCQs fb  MCQs G+

Share the Knowledge

MORE INFORMATION
GATE Total InfoGATE 2019 BooksFree Notes
IES Total InfoIES 2019 BooksFree Mock tests
JAM Total InfoJAM 2019 BooksEngg Diploma
PSUs Total InfoM Tech Total InfoUGC NET Total Info
Copy Protected by Chetan's WP-Copyprotect.