Search Header Logo

Peripheral interface

Authored by Santhanamari G

Other, Specialty

University

Used 5+ times

Peripheral interface
AI

AI Actions

Add similar questions

Adjust reading levels

Convert to real-world scenario

Translate activity

More...

    Content View

    Student View

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

The signal that may be used either to interrupt the CPU or polled by the CPU is

TXRDY(Transmitter ready)
DSR(active low)
RXRDY(Receiver ready output)
DTR(active low)

2.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

If 02H is loaded into 8251A mode word register, which of the following is correct?

8251A operates in synchronous mode
8251A operates in asynchronous mode with baud rate factor of 16
8251A operates in asynchronous mode with baud rate factor of 1
8251A operates in asynchronous mode with baud rate factor of 64

3.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

……….line is made high & sync characters are transmitted on TxD line

RxRDY
TxRDY
TxE
None of these

4.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

When modem is ready for data transmission/reception it generate a signal…………to indicate it’s readiness for data transfer

DTR
CTS
DSR
BOTH A & C

5.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

If the transmitter clock frequency of 8251A is 153.6kHz and the baud rate in asynchronous mode is 2400, the baud rate factor is

1
16
32
64

6.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

The signals AEN and ADSTB of 8237A are used to latch a

Lower order address byte<br /> <br /> <br />
Higher order address byte
Lower order data byte
Higher order data byte

7.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

If 0FH is loaded into control word register of 8254, then the mode selected would be

Mode 2
Mode 3
Mode 4
Mode 5

Access all questions and much more by creating a free account

Create resources

Host any resource

Get auto-graded reports

Google

Continue with Google

Email

Continue with Email

Classlink

Continue with Classlink

Clever

Continue with Clever

or continue with

Microsoft

Microsoft

Apple

Apple

Others

Others

Already have an account?