Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Configure port A for the lower 4 bits to be inputs and the upper 4 bits to be outputs. The program should chase a logic one from Pa4 -> Pa7, depending upon the condition of Pa0-Pa3 the speed of chase is increased.
Pa0 = 1 Slow Counter Pa1 = 1 Counter Pa2 = 1 Counter Pa3 = 1 Fast Counter If all Pa0, Pa1, Pa2, Pa3 = 0 wait The only major difference is the data direction i.e. this configures 4 input lines Pa0-Pa3 and 4 output lines Pa4-Pa7
Paddr Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0 1 1 1 1 0 0 0 0 The full program is shown below
name first padr equ $0000 paddr equ $0001 org $500 ldaa #$f0 staa paddr set up half in and half out loop0 ldaa #$10 staa padr send data jsr delay ldaa #$20 staa padr send data jsr delay ldaa #$40 staa padr send data jsr delay ldaa #$80 staa padr send data jsr delay jmp loop0 delay ldab padr ;get input from port a andb #$0f ;mask of lower nibble only
beq delay ;repeat till selected ldab padr ;get port a data again andb #$8 ; mask off bit 3 pa3 bne loop3 ;if select go to loop3 ldab padr ;get port a data again andb #$4 ; mask off bit 2 pa2 bne loop4 ;if select go to loop4 ldab padr ;get port a data again andb #$2 ; mask off bit 1 pa1 bne loop5 ;if select go to loop5 ldx #$ffff ;assume pa0 is pressed load up x with ffff jmp loop1 ;carry on loop2 ldx #$1 ;load up X with 1 fast jmp loop1 ;carry on loop3 ldx #$f ;load X with f jmp loop1 loop4 ldx #$ff ;load x with ff jmp loop1 loop5 ldx #$fff ;load x with fff slow loop1 ldab #$1f ;nested loop loop6 decb bne loop6 dex bne loop1 ;loop till zero rts ;return back to main end
Explain about the Acoustic tablet Acoustic (or sonic) tablet use sound waves to detect a stylus position. Either strip microphones or point microphones can be used to detect th
Through two block diagrams explain the difference between Space division and time division switching. Space and Time Switching: Space Switches: Connections can be made i
Explain Biometric Systems Biometrics is the science of measuring physical properties of living beings. Biometric Authentication (1) Biometric authentication is the aut
Granularity In 'Parallel computing', Granularity can be defined as a qualitative assess of the ratio of computation to communication. 1) Coarse Granularity - relatively hug
Translate the following sentences into predicate logic, using Russell's theory of definite descriptions to represent the article the. a. The wizzard of Oz fell. b. Everyone a
Explained RAID? Ans: High performance devices tend to be costly. So we can gain very high performance at a reasonable cost using a number of low-cost devices operating in paral
Q. Show the Shared Programming Using Library Routines? The mainly well-liked of them is use of combo function known as fork() and join(). Fork() function is used to initialize
Explain the importance of computer architecture Studying the architecture implies working on machine language programs. However, this isn't practical when we design a computer
The "turn-around" time of a user job is the? Ans. Total time taken to execute the job is called "turn around" time.
What is insertion sort? Insertion Sort : One of the easiest sorting algorithms is the insertion sort. Insertion sort having of n - 1 passes. For pass p = 2 by n, insertion so
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd