27 Draw and explain the control word register of8255PPI for I/O mode.If Port A is used for output (simple I/0), Port B isused for input (simple I/0) and Port C is used forinput (simple l/O); what would be the control word?AB!!

Answered: Image /qna-images/answer/a17b4fd2-5ade-411b-9108-637bca2a394e.jpg

Draw and explain the control word register of 8255PPI for 1/O mode. If Port A is used for output (simple I/O), Port B is used for input (simple I/0) and Port C is used for input (simple l/O); what would be the control word?

Draw and explain the control word register of 8255PPI for 1/O mode. If Port A is used for output (simple I/O), Port B is used for input (simple I/0) and Port C is used for input (simple l/O); what would be the control word?

Systems Architecture

7th Edition

ISBN:9781305080195

Author:Stephen D. Burd

Publisher:Stephen D. Burd

Chapter6: System Integration And Performance

Section: Chapter Questions

Problem 4RQ

See similar textbooks

Related questions

Q: Ql: What is the output of registers in each step? А. MOV AX, ОАЗҒSҺ MOV DX, OD7CFH SUB DX, AX

A: Given:

Q: 3. Write a program in AVR assembly that has a switch connected to the bit 3 of PORT A. Monitor to…

A: AVR employs a Harvard architecture, which consists of distinct programme and data memory and buses.…

Q: Draw and explain the control word register of 8255PPI for BSR mode . the bit PC2 must be set , what…

A: 8255PPI is the Programmable Peripheral Interface which gives access to programmable I/O. 8255…

Q: use instruction OUT DX, AL to send data information to an output port, which register must be used…

Q: each bit in an operand is sh

A: Introduction: The highest bid in the Carry flag is duplicated into the lowest bit via the ROL…

Q: Explain the function of INT 1Ah / AH = 00h interrupt.

A: INT 10h, INT 10H or INT 16 is shorthand for BIOS interrupt call 10hex, the 17th input vector in an…

Q: Write an 8085 assembly program to continually read an input value from the input port address 100…

A: Given data:- Write an 8085 assembly program to continually read an input value from the input port…

Q: circuit should conditionally zero and negate the 16-bit input). This logic can be used to manipulate…

A: Description: The below circuit diagram implemented using arithmetic logic unit.The main use of…

Q: QUESTION 7 Write an 8085 assembly program to continually read an input value from the input port…

A: Solution The operations should run 10 times. so initialize the register B with value 10(A in…

Q: Analyze and list the procedure followed in the given 8051 ALP, justify the Control Word Format for…

A: Answer: I have given answered in the handwritten format in brief explanation with comments.

Q: Write an instruction sequence to clear bits 7, 6, 1 & 0 in Accumulator A and toggle the other four…

Q: (i) Draw and explain the control word register of 8255 PPI for BSR mode. (ii) If the bit PC4 must be…

Q: Design a Register File only for a 5-bit ALU and for a 11-bit ISA where the op code is 2-bit wide.

A: The register file for 5-bit ALU and 11-bit ISA where the opcode is 2-bit wide is designed below.

Q: 4- Write an assembly program that count 0 FFh ( Binary counter and display the count on port B of…

A: Below is the assembly program with explanation:

Q: Write instructions to compare the byte in memory location 2050, with 804. If the byte is equal to…

A: Required :- Approach :- Please see the code below in step-2.

Q: Using instruction OUT DX, AL to send data information to an output port, which register must be used…

A: Using instruction OUT DX,AL to send data information to an output port , the register used to hold…

Q: Design an 8051-based MCU using the Multisim software and implement a bidirectional 8-bit binary…

A: The answer is given below:-

Q: What is serial In-parallel out(SIPO) and parallel in-Serial out(PISO) Shift Register And what is the…

A: Given data is shown below: What is serial In-parallel out(SIPO) and parallel in-Serial out(PISO)…

Q: Using instruction OUT DX, AL to send data information to an output port, which register must be used…

A: (b) DX register holds the 16-bits Port address information

Q: ) Draw and explain the control word register of 8255 PPI for 1/0 mode. ) If Port A is used for…

A: ANSWER:-

Q: analog value that is connected with IN+ pin of ADC080

A: Q. Write an assembly language program to read the analog value that is connected with IN+ pin of…

Q: Using instruction IN AL, DX to read a byte information from an input port, which register must be…

A: We are given an instruction IN AL,DX and we are asked which register must be used to hold the port…

Q: e two of common-anode Seven Segment Display to PPI at port address 20840h. Write an assembly program…

A: Q1/Design a hardware needed to interface two of common-anode Seven Segment Display to PPI at port…

Q: With respect to 8051 microcontroller, the programming address of TF0 and IEO of a timer control…

A: Solution : The 8051 Microcontroller Special Function Registers serve as a control table for…

Q: Draw the timing diagram for FETCH and SUB routine for the following control word SU EP LM’ EI LI’…

A: The Answer is

Q: ) Draw and explain the control word register of 8255 PPI for BSR mode. (i) If the bit PC4 must be…

A: solution : part i ) Format of control word register of 8255 for BSR mode :Here the above figure…

Q: An 8 bit register contains the binary value 10011100.What is the register value after an arithmetic…

A: 10011100 The number is shifted to right by two value Therefore the number after performing…

Q: a) Serially shifting a byte of data into a shift register. b) Parallel loading a byte of data into a…

A: A) A byte is is the size of 8 bits so the serially shifting a byte of data take 8 clock pulses. B)…

Q: When the interrupt flag is set (IF=1) in the 16-bit flag register, then the INTR pin _________.…

A: Filled the given statement

Q: The sequence 1011 is applied to the input of a 4-bit serial shift register that is initially…

A: Given: Sequence 1011 is applied to the input of a 4-bit serial shift register that is initially…

Q: sing instruction IN AL, DX to read a byte information from an input port, which register must be…

A: D. AL register is used to receive tye 8-bits data.

Q: Suppose the register %rax contains 0x100, and the register %rbx contains 0x10. What value is stored…

A: The correct answer is given below:-

Q: Load the data byte 8E H in DL register and data byte F7 H in register AL. mask D7-D4 from both of…

A: Below is the implementation

Q: CLK CLK CLK DDD A- reset

A: Answer : A computational model that can be implemented with hardware or software and can be used…

Q: Give the description of all the bits of the control word of 8255A IC and construct control word to…

A: Answer :

Q: : Exchange the contents of BC and DE registers without using any other MPU general purvose register.

A: Answer: we assume here BC=6878H and DE=5665H Address Mnemonics 7000 MVI B 68H…

Q: Give the starting code memory location and the machine code in hexadecimal : The instruction are…

A: For the starting code memory location, we have to consider the ORG instruction here. For the machine…

Q: Draw the Output bus cycle of 8086 I/O interface.

A: Output bus cycle is asked for the 8086 I/O interfaces.

Q: 01, 7800, F400 for addresees 40A through 40D. AC starts with value 0F24, PC has the varue 40A, and…

A: Answer is as below:

Q: A Data segment is to be located from 60200H to 6FFFFH, what is the value must be loaded in to DS…

A: We need to find the load value of data segment.

Q: What OCW1 is needed to disable interrupt on IR2 and IR5?

A: Answer

Q: Using instruction IN AL, DX to read a byte information from an input port, which register must be…

A: IN is a that stands for INput the Byte from input port content to the accumulator.

Q: For a combined datapath of add and addi instructions how many minimum multiplexers are required?…

A: To combine datapaths: Select source of second ALU operand Select source of data to…

Q: Give one example for each of the addressing modes.

A: Addressing modes are only the various manners by which the area of an operand can be indicated in a…

Q: The difference between IP & IR registers is in: Select one: a. Size b. ALU There is no difference d.…

A: Answer to the given question In figuring, the instruction register (IR) or current instruction…

Q: Describe the sequence of timing signals of 8155 programmable devices when it reads or writes to an…

A: 1. Two 8 bit i/o ports programmable (port A and port B) 2. One 6 bit i/o port programmable (port C)…

Q: In the GPIO module of the KL25Z which register is not essential for general use of the peripheral.…

A: Solution:- Data Direction register... This is right option...

Q: In fetch cycle the instruction gets stored in IP register Select one: True False

A: The 'fetch-execute' cycle refers to a computer's basic operation. The instruction set is a set of…

Q: k. Write the control word for the TMOD register of the 8051 microcontrollers if timer-1 is used in…

A: Write the control word for the TMOD register of the 8051 microcontrollers if timer-1 is used in…

Question

Draw and explain the control word register of
8255PPI for I/O mode.
If Port A is used for output (simple I/0), Port B is
used for input (simple I/0) and Port C is used for
input (simple l/O); what would be the control word?
A
B
!!

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step 3

VIEW

Step by step

Solved in 3 steps with 3 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.

Similar questions

. Using memory-mapped IO approach, draw the connection of an 8088 processor connected to: - a push button addressed at EE000H - an LED at address EE001H - an AC motor at address EE002H
A single Interrupt line can be used to service n different devices. i) True ii) False
20. What OCW1 is needed to disable interrupt on IR2 and IR5?
Find the values of the flags(carry, sign, zero, overflow) of the processor status register for the givenexample of two 12 bit no’s in Hex (AB7 + DEF) and draw the circuit diagram also.
An 8 bit register contains the binary value 10011100.What is the register value after an arithmetic shift right? Starting from the initial number 10011100, determine the register value after an arithmetic shift left and state whether there is an overflow or not?
If a design has three inputs, eleven states, and five outputs, how many address pins (enter a decimal number) would a ROM need for a ROM-based controller if D-FFs were used and how many data pins (enter a decimal number) ? (Hint: Start the the next-state truth table by drawing the first line.)
Difference between polled interrupt and daisy chain(vectored) interrupt in tabular form.
Question Aa Draw a timing diagram for a write operation on a bus in which thewrite takes two wait states
Suppose that four different four-bit numbers are to be taken from memory and added by the circuit discussed in class. How many CLEAR pulses will be needed? How many TRANSFER pulses? How many LOAD pulses?
Suppose the register %rax contains 0x100, and the register %rbx contains 0x10. What value is stored in %rcx as a result of movq 2(%rax,%rbx,4), %rcx?
Write a C program using an interrupt to continuously transmit the Ascii alphabet with 0% error for a 19.2k baud rate. You determine the Oscillator Speed. Be clear in your comments about what your settings are for the Control/status and baud rate registers. The alphabet can be in upper or lower case.
On our MCS board ______is used to control the input port. A) address decoding B) IOWR C) OC D) IORD