PCI BUS Questions

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11.

A complete transfer operation over the BUS, involving the address and a burst of data is called _____

A

Transaction

B

Transfer

C

Move

D

Procedure

Correct Answer: A

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12.

The device connected to the BUS are given addresses of ____ bit.

A

24

B

64

C

32

D

16

Correct Answer: B

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13.

The PCI BUS has _____ interrupt request lines.

A

6

B

1

C

4

D

3

Correct Answer: C

The interrupt request lines are used by the devices connected to raise the interrupts.

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14.

_____ signal is sent by the initiator to indicate the duration of the transaction.

A

FRAME#

B

IRDY#

C

TMY#

D

SELD#

Correct Answer: A

The FRAME signal is used to indicate the time required by the device.

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15.

______ signal is used to enable commands.

A

FRAME#

B

IRDY#

C

TMY#

D

c/BE#

Correct Answer: D

The signal is used to enable 4 command lines.

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16.

IRDY# signal is used for _______

A

Selecting the interrupt line

B

Sending an interrupt

C

Saying that the initiator is ready

D

None of the mentioned

Correct Answer: C

The initiator transmits this signal to tell the target that it is ready.

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17.

The signal used to indicate that the slave is ready is _____

A

SLRY#

B

TRDY#

C

DSDY#

D

None of the mentioned

Correct Answer: B

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18.

DEVSEL# signal is used _________

A

To select the device

B

To list all the devices connected

C

By the device to indicate that it is ready for a transaction

D

None of the mentioned
 

Correct Answer: C

This is signal is activated by the device after it as recognized the address and commands put on the BUS.

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19.

The signal used to initiate device select ________

A

IRDY#

B

S/BE

C

DEVSEL#

D

IDSEL#

Correct Answer: D

This signal is used to initialization of device select.

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20.

The PCi BUS allows us to connect _______ I/O devices.

A

21

B

13

C

9

D

11

Correct Answer: A

The PCI BUS allows only 21 devices to be connected as only the higher order 21 bits of the 32 bit address space is used to specify the device.

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