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.
h parameters
Q. Determine the voltages V x using voltage division and equivalent resistor reductions for the circuits shown in Figure.
Why is the signal first attenuated and then amplified?
Q. Explain about Floating Point Numbers? The IEEE Standard 754 floating point is the most common representation today for real numbers on computers. There are numerous ways
Energy stored in a capacitor During charging process by capacitor, it will get energy. Energy is stored in static form. The voltage in capacitor will enhance from 0 volt to E v
var
A preliminary design with ideal resistors, inductors and capacitors, will get 25 marks. If the design does not meet the specifications then one mark will be deducted following the
Condition Return Similar to conditional jump and call instructions there are conditional return instructions also based on various flags.
Q. Illustrate working of Application Layer? As the highest layer in OSI reference model, application layer provides services to users of OSI environment. Layer
factors affecting resistance
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