8255 consists of three 8-bit bidirectional I/O ports, A All of these PORT A PORT B PORT C

Q: This 8-bit word 10011010 is fed as control/command word to following devices: 8255, 8254, 8237, and…

A: All the mentioned devices accept the 8 bit word as either command or control. Each bit of the word…

Q: Write a program in which the 8051 gets data from P0 and sends it to P1 continuously while incoming…

A: 8051 microcontroller : 8051 microcontroller is an 8-bit microcontroller created in 1981 by Intel…

Q: c. Write the high byte to the port address FA8AH and the low byte to the port address 5C3BH.

A:

Q: How many individual byte-wide data ports can be supported by one PPI in mode 2

A: I have provided solution in step2.

Q: In _______ transmission, a start bit and a stop bit frame a character byte. a. asynchronous serial…

A: In asynchronous serial transmission actual data is of 8 bit.and it is protected with start and stop…

Q: In _______ transmission, a start bit and a stop bit frame a character byte. a. asynchronous serial…

A: The Answer is

Q: . In _______ transmission, a start bit and a stop bit frame a character byte. a. asynchronous serial…

A: Lets see the solution.

Q: In _______ transmission, a start bit and a stop bit frame a character byte. a. asynchronous serial…

A: Here in this question we have asked about the transmission in which a start bit and stop bit frame a…

Q: If a PPI was configured in the combined mode: PortA- mode2 and PortB- mode1, the bits of upper port…

A: PPL is programmable peripheral interface. There are three ports, i.e., PORT A, PORT B, PORT C. As…

Q: (b) In the real mode, show the starting and ending addresses of each segment located by the…

A: In real mode the address are calculated as follows Starting address =  (segment register)H * 10H…

Q: Describe how RS-232 and RS-422 differ.

A: DIFFERENCE BETWEEEN RS-232 AND RS-422 - RS-232 - RSS-232 is a very common type of communication…

Q: In serial communication the parity bit is generated by the:     Receiving device     user…

A: Parity bit is known as check bit. bit that is appended in binary string  It can be either 0 or 1…

Q: In _______ transmission, bits are transmitted simultaneously, each across its own wire. a.…

A: Given that: In _______ transmission, bits are transmitted simultaneously, each across its own wire.

Q: V.90 modems with a bit rate of 56,000 bps are called a. 56K modem b. 56000 modem c. 56 modem d. 5600…

A: V.90 modems with a bit rate of 56,000 bps are calleda. 56K modemb. 56000 modemc. 56 modemd. 5600…

Q: s to be designed eater. What is the ata Linked Layer port signal speed

A:

Q: Which input port in the circuit of the Figure below is selected for input operation if the address…

A: answer is  option b   port1 is correct answer

Q: How many 8-bit characters can be transmitted per second over a 9600 baud serial communication link…

A: Introduction :Given ,Async. Mode of transmissionSize of char = 8 bits 9600 baud serial communication…

Q: How many 8-bit characters can be transmitted per second over a 9600 baud serial communication link…

A: Introduction : We have given total number of bits = 12 and modulation rate as 9600 baud.we have…

Q: Example 3: Write a piece of code to send 55H to output port device which its address is F300H.

A: The OUT instruction copies a byte from AL or a word from AX to the specified port. The OUT…

Q: Write an 8051 C program to toggle bits of P2 and P3 ports continuously with a 150 m

A: /Write an 8051 C program to send values 00 – FF to port P1. //Solution: #include <reg51.h>…

Q: Interface the 8279 so that it functions at 8-bit I/O ports 40H-7FH. Use the 74LS138 as a decoder and…

A: Actually, data bus is a used to transfer the data.

Q: According to the following table if the destination address is 11001000 00010111 00011100 10101010…

A: By doing prefix matching of the given destination address with the address ranges given in the…

Q: 59. In _______ transmission, a start bit and a stop bit frame a character byte. a. asynchronous…

A: Answer:  a) asynchronous serial   In asynchronous serial transmission, a start bit and a stop bit…

Q: 59. In _______ transmission, a start bit and a stop bit frame a character byte. a. asynchronous…

A: Given data is shown below: 59. In _______ transmission, a start bit and a stop bit frame a…

Q: For the 12C transmission below by the Master, determine the Slave address and whether or not it is a…

A: Answer: 0xEA, Write , ACK

Q: 45. Consider the GPIB interface between a talker and a listener as shown in Figure 13-86(a). From…

A: Given:

Q: Which mode bit is used to indicate user mode a. -1 b. 1 c. 3 d. 5

A: Mode bit is used to indicate user mode:

Q: The minimum time required to download one million bytes of information for V32 modem would be a. 800…

A: Answer is b) 834s

Q: What is the frequency for a bus that has a width of 64 bits and bandwidth of 125 MBps as specified…

A: First of all, let's understand what is Bus Topology.   A bus topology is a topology for a Local Area…

Q: What is the frequency for a bus that has a width of 64 bits and bandwidth of 125 MBps as specified…

A: In order to calculate the bandwidth of a system's data bus, following formula is being considered:…

Q: 89. Communication circuits that transmit data in both directions but not at the same time are…

A: Asked: Communication circuits that transmit data in both directions but not at the same time are…

Q: Q5: State the characteristic of each of the following access bytes. State for each ifit is for code…

A: characteristic of each access bytes. the below access bits contains 8 bits of data.where 0 represent…

Q: In a RS23C Communication Protocol (12bits), Name the bits used for synchronization? ? MS8

A: The correct answer of the questions is option("b") "4"

Q: What control bit sequence gives the following ALU output? Ex. 110001→!y X+1 X&Y -1 у-х у-1 X

A:

Q: If in the GPON network in (a) a single optical network terminal (ONT) is allocated 150 slots per…

A: Actually, given question regarding GPON network.

Q: How is channel I/O different from interrupt-driven I/O?

A: Channel I/O: The I/O takes place by a smart type of Direct Memory Access (DMA) interface known as…

Q: A crystal frequency of 3 MHz is used for the 8284. What is the clock period (TCLK)? 3 MHz O 10 us O…

A: Option E: 3 μs

Q: If the baud rate for a 64-QAM signal is 2000, what is the bit rate? a. 300 b. 400 c. 1000 d. 12000

A: ANSWER:-

Q: There is no need for addressing in synchronous TDM Select one: O True O False

A: Given statement, There is no need for addressing in synchronous TDM.

Q: The most widely used application/programming interface for UPD is the:?-layer-socket-tellnet-adu

A: The most widely used application/programming interface for UPD is the:?-layer-socket-tellnet-adu

Q: A noiseless 3 KHz Channel transmits bits with binary level signals. What is the maximum data rate?…

A: Given that, A noiseless 3 KHz Channel transmits bits with binary level signals. Band width, B = 3…

Q: Write an 8051 C program to toggle bits of P2 and P3 ports continuously with a 150 ms.

A: It is designed by intel in the year of 1981. It is an 8-bit microcontroller It build with 40 pins.…

Q: Write an 8051 C program to toggle bits of P2 and P3 ports continuously with a 150 ms

A: Toggling Bits - It means to switch the bits or flips the bits like continuous "on" or "off". Ports -…

Q: Adding an independent fetching unit (IFU) to Mic-1, eliminates the need to combine two bytes in the…

A: Answer : True .

Q: Create a program that reads two signed words from the input port addressed by 0xC000_00AC, adds…

A: Please find the answer below:

Q: R1 = 10mbps B R2 = 12mbps Source A E R3 = 15mbps C) D) Destination F

A: First what we have: A is source point, D is destination point, Total processing dproc= 5.34ms Total…

Q: QUESTION 9 A digital signaling system is required to operate at 4800 bps. If a signal element…

A: C = 4800 kbps n = 4 B.W = ? Log 2 M = 4 C = 2 B.W log₂ M C = 2(B.W) (4) = 24000 B.W =300000 HZ

Q: Explain why, in MARIE,the MAR is only 12 bits wide while the AC is 16 biys wide.

A:

Q: Q7a-For the message 1010110000111011011 give the DPSK system. b-Compare between PCM, DPCM, DM and…

A: Below are the required answers:

Q: How many characters per second can be transmitted over a 4800-baud line in each of the following…

A: An asynchronous transmission of data uses the start and stop bit convention to signal the beginning…