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!
Explain in detail the operation of 8255 in mode1 taking suitable example.
In mode1, Ports A and B are programmed as input or output ports and Port C is used for handshaking.
8255 handshaking
PPI Interface to CPU
Port A and or port B treated as latching input devices. External data is stored into the ports till the microprocessor is ready.
Port C is utilized for control or handshaking signal that cannot for data.
Signal Definitions for Mode 1 Strobed Input.
STB‾: The strobe input loads data in port latch on a 0 to 1 transition,
IFB: Input buffer full is an output specifying that input latch has information.
INTR: Interrupt requests outputs which request an interrupt.
INTE: Interrupt enable signal is neither output nor an input; this is an internal bit programmed through the PC4 that is port A to PC2 that is port B bits.
PC7, PC6: The port C pins 7 and 6 both are general purpose I/O pins which are available for any reasons.
Q. The magnetization curve taken at 1000 r/min on a 200-V dc series motor has the following data: Field current, A: 5 10 15 20 25 30 Voltage, A: 80 160 202 222 236 244 Th
Q. Given ¯B = (y ¯ax - x ¯ay )/(x 2 + y 2 ) T, determine the magnetic force on the current element Id ¯l = 5 × 0.001¯a A located at (3,4,2).
Standards and Labelling - Features of Energy Conservation Standards and Labelling (S & L) has been recognized as a key activity for improvement in energy efficiency. The S & L
Q. The response v(t) of a linear system to a unit-step excitation i(t) is given by v(t) = (5 - 3e -t + 2e -2t ) u(t). Determine the transfer function H(s) = V (s)/I (s).
Q. Applications of operational amplifiers? An op amp along with a few external components (resistors and capacitors) is capable of performing many different operations-hence th
Among copper and mercury which is better conductor of electricity?
Explain the Sequential Circuits? The Logic circuits whose outputs, at any instant of time, depends not merely the present input but as well the past output called sequential ci
I want simulink model for carrier based pwm method
explain front pitch and back pich ??
Stator Voltage Control Methods By controlling the applied voltage the speed of an induction motor can be controlled. Since the output torque of 3-? induction motor i
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: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd