11:55HomeTake Test: FinalQuestion Completion Status:QUESTION 16Which of the following is TRUE about a serial portcontroller and a fiber channel (FC) bus controller?A) Both FC bus controller and serial port controllerare often implemented as separate circuit boards.B) A serial-port controller is a simple devicecontroller, while an FC bus controller is complex.C) Both FC bus controller and serial port controllerClick Save and Submit to save and submit. Click Save All Answers to save allanswers.AASave All AnswersSave and Submitbbhosted.cuny.edu C) Both FC bus controller and serial port controllerare used in PCs.○ D) All of the above.

Correct option:Option b: This option is correct because a serial port controller is a relatively…

Answered: 11:55 Home Take Test: Final Question…

Systems Architecture

7th Edition

ISBN:9781305080195

Author:Stephen D. Burd

Publisher:Stephen D. Burd

Chapter6: System Integration And Performance

Section: Chapter Questions

Problem 30VE

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State an advantage of a differential bus over a single-ended bus.
Two disadvantages of the Bus topology that you should describe are difficulties in reconnection and fault isolation.
If two devices A and B contesting for the BUS have ID’s 5 and 6 respectively, which device gets the BUS based on the Distributed arbitration.
For a multiplexer based bus system in an 8 bit computer system with 4 registers: a- What is the MUX size we use? b- How many MUX do we need? c- How many select bit are required? d- Draw the suggested bus system showing full connections for one register.
Two of the disadvantages of the Bus topology that you should describe are the challenges in reconnection and fault isolation.
45. Consider the GPIB interface between a talker and a listener as shown in Figure 13-86(a). From the handshaking timing diagram in part (b), determine how many data bytes are actually trans- ferred to the listening device. Talker Listener Data bus DAV DAV NRFD NRFD Transfer bus NDAC NDAC (a) (b) FIGURE 13-86
What are the four types of bus arbitration?
Address and data buses are demultiplexed in what way?
The address bus consists parallel signal lines while data bus consists separate lines. True O False Hardwired control units are generally faster than micro - programmed designs. * True False The main property of a bus is that it is a shared transmission medium. * True O False
What precisely is meant by the term "protocol," and why is it considered to be of such vital importance in I/O bus technology?
We pointed out that I/O buses do not need separate address lines. Construct a timing diagram similar to Figure 7.11 that describes the handshake between an I/O controller and a disk controller for a write operation. (Hint: You will need to add a control signal.)
The VAX SBI bus uses a distributed, synchronous arbitration scheme. Each SBIN device (i.e., processor, memory, I/O module) has a unique priority and is assigned a unique transfer request (TR) line. The SBI has 16 such lines (TR0, TR1, . . ., TR15), with TR0 having the highest priority. When a device wants to use the bus, it places a reservation for a future time slot by asserting its TR line during the current time slot. At the end of the current time slot, each device with a pending reservation examines the TR lines; the highest-priority device with a reservation uses the next time slot. A maximum of 17 devices can be attached to the bus. The device with priority 16 has no TR line. Why not?

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